vnu.edu.vn Website Information

Daily Unique Visits: 152,554

Daily Page Views: 1,220,432

Income Per Day: $1,220

Estimated Value: $1,317,600

This website is located in Viet Nam and is using following IP address 112.137.142.4. See the complete list of popular websites hosted in Viet Nam.

vnu.edu.vn is registered under .VN top-level domain. Please check other sites in .VN zone.

Website vnu.edu.vn is using the following name servers:

dns.vnu.edu.vn

and is probably hosted by VNU-AS-VN VietNam National University Ha Noi, VN. See the full list of other websites hosted by VNU-AS-VN VietNam National University Ha Noi, VN.

The highest website vnu.edu.vn position in Alexa rank database was 8017 and the lowest rank position was 9989. Current position of vnu.edu.vn in Alexa rank database is 9989.

Desktop speed score of vnu.edu.vn (15/100) is better than the results of 2.65% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of vnu.edu.vn (62/100) is better than the results of 7.29% of other sites and means that the page is not mobile-friendly.

Mobile speed score of vnu.edu.vn (19/100) is better than the results of 4.1% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

vnu.edu.vn Alexa Rank

The traffic rank is based on three months of aggregated historical traffic data from millions of Alexa Toolbar users and is a combined measure of page views and users.

vnu.edu.vn whois

WHOIS gives you the ability to lookup any generic domains to find out the registered domain holder. WHOIS database are provided for information purposes only. It allows the public to check whether a specific domain name is still available or not and to obtain information related to the registration records of existing domain names.

vnu.edu.vn domain is not supported

vnu.edu.vn server information

Servers Location

vnu.edu.vn desktop page speed rank

Last tested: 2019-12-15

Desktop Speed Bad

15/100

vnu.edu.vn Desktop Speed Test Quick Summary

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priority - 26Leverage browser caching

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priority - 13Enable compression

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priority - 8Eliminate render-blocking JavaScript and CSS in above-the-fold content

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priority - 4Prioritize visible content

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priority - 1Reduce server response time

In our test, your server responded in 0.31 seconds.

vnu.edu.vn Desktop Resource Breakdown

Total Resources	60
Number of Hosts	5
Static Resources	52
JavaScript Resources	7
CSS Resources	7

vnu.edu.vn mobile page speed rank

Last tested: 2018-10-27

Mobile Speed Bad

19/100

vnu.edu.vn Mobile Speed Test Quick Summary

priority - 272Optimize images

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priority - 37Leverage browser caching

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priority - 32Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 7 blocking script resources and 7 blocking CSS resources. This causes a delay in rendering your page.

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priority - 13Enable compression

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priority - 8Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

64.5KiB of the HTML response was required to render the above-the-fold content. This requires 3 network round-trips. However, if the HTML response were compressed, then the HTML required to render the above-the-fold content could be delivered in just 2 network round-trips. Enable compression for the HTML response in order to prioritize the visible content for this page.

Only about 33% of the final above-the-fold content could be rendered with the HTML delivered within 2 round-trips.

Click to see the screenshot with 2 round trips:

priority - 7Reduce server response time

In our test, your server responded in 0.69 seconds.

priority - 1Minify HTML

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vnu.edu.vn Mobile Resource Breakdown

Total Resources	57
Number of Hosts	5
Static Resources	49
JavaScript Resources	7
CSS Resources	7

vnu.edu.vn mobile page usability

Last tested: 2018-10-27

Mobile Usability Bad

62/100

vnu.edu.vn Mobile Usability Test Quick Summary

priority - 40Use legible font sizes

The following text on your page renders in a way that may be difficult for some of your visitors to read. Use legible font sizes to provide a better user experience.

The following text fragments have a small font size. Increase the font size to make them more legible.

Tài nguyên số and 5 others render only 4 pixels tall (11 CSS pixels).

English renders only 4 pixels tall (11 CSS pixels).

Search renders only 5 pixels tall (12 CSS pixels).

HỢP TÁC & PHÁT TRIỂN and 7 others render only 5 pixels tall (12 CSS pixels).

| and 7 others render only 5 pixels tall (12 CSS pixels).

ĐẢM BẢO CHẤT LƯỢNG and 3 others render only 4 pixels tall (11 CSS pixels).

TIN TỨC & SỰ KIỆN renders only 5 pixels tall (14 CSS pixels).

ĐHQGHN phối hợ…o doanh nghiệp and 2 others render only 5 pixels tall (13 CSS pixels).

Trung tâm Thôn…x Libris, ... and 2 others render only 5 pixels tall (12 CSS pixels).

CÁC ĐƠN VỊ THÀ…VÀ TRỰC THUỘC renders only 5 pixels tall (12 CSS pixels).

TRUNG TÂM ĐÀO TẠO & NGHIÊN CỨU and 4 others render only 4 pixels tall (11 CSS pixels).

CỔNG THÔNG TIN…HỌC CÔNG NGHỆ renders only 4 pixels tall (11 CSS pixels).

THÔNG BÁO MỚI renders only 5 pixels tall (13 CSS pixels).

Thông báo số 2…c ĐH Việt Nam” and 6 others render only 5 pixels tall (13 CSS pixels).

SINH VIÊN renders only 5 pixels tall (14 CSS pixels).

Chủ tịch Hội S…ành phố Hà Nội and 1 others render only 5 pixels tall (13 CSS pixels).

Giấy phép số 4…dia@vnu.edu.vn and 2 others render only 4 pixels tall (11 CSS pixels).

Email hỗ trợ kỹ thuật: renders only 4 pixels tall (11 CSS pixels).

vnunet@vnu.edu.vn renders only 4 pixels tall (11 CSS pixels).

kiemtra_spam@vnu.edu.vn renders only 4 pixels tall (11 CSS pixels).

Sơ đồ Website and 6 others render only 5 pixels tall (12 CSS pixels).

priority - 12Size tap targets appropriately

Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.

The following tap targets are close to other nearby tap targets and may need additional spacing around them.

The tap target <a href="?netoffice">Văn bản</a> and 3 others are close to other tap targets.

The tap target <a href="http://vnu.edu.vn/eng">English</a> is close to 2 other tap targets.

The tap target <input id="se" type="text" name="q" class="google"> is close to 1 other tap targets.

The tap target <input id="searchsubmit" type="submit" name="sa" class="submit"> is close to 2 other tap targets.

The tap target <a href="/home/">TRANG CHỦ</a> and 7 others are close to other tap targets.

The tap target <a href="/home/?C2071">ĐẢM BẢO CHẤT LƯỢNG</a> and 3 others are close to other tap targets.

The tap target <a href="/ttsk/">TIN TỨC & SỰ KIỆN</a> is close to 1 other tap targets.

The tap target <li> is close to 4 other tap targets.

The tap target <li> and 2 others are close to other tap targets.

The tap target <a id="16menu" href="#">ĐƠN VỊ PHỤC VỤ</a> is close to 1 other tap targets.

The tap target <a href="/schools"></a> and 5 others are close to other tap targets.

The tap target <a href="http://sciento.vnu.edu.vn/">CỔNG THÔNG TIN…HỌC CÔNG NGHỆ</a> is close to 2 other tap targets.

The tap target <a href="/ttsk/?C1667">THÔNG BÁO MỚI</a> is close to 1 other tap targets.

The tap target <a href="/ttsk/?C1667/N…va-Du-lich.htm">(29/10/2018) C…hao và Du lịch</a> and 12 others are close to other tap targets.

The tap target <a href="/ttsk/?C1660">SINH VIÊN</a> is close to 1 other tap targets.

The tap target <a href="/ttsk/?C1660/N…ho-Ha-Noi .htm"></a> and 1 others are close to other tap targets.

The tap target <a href="/ttsk/?C1660/N…ho-Ha-Noi .htm">Chủ tịch Hội S…ành phố Hà Nội</a> and 2 others are close to other tap targets.

The tap target <a href="/home/">Trang chủ</a> and 3 others are close to other tap targets.

The tap target <a href="https://www.fa….com/VNU.DHQG/"></a> and 1 others are close to other tap targets.

priority - 10Configure the viewport

Your page does not have a viewport specified. This causes mobile devices to render your page as it would appear on a desktop browser, scaling it down to fit on a mobile screen. Configure a viewport to allow your page to render properly on all devices.

priority - 3Avoid plugins

Your page uses plugins, which prevents portions of your page from being used on many platforms. Find alternatives for plugin based content to increase compatibility.

Find alternatives for the following Flash plugins.

http://s10.histats.com/605.swf (140 x 58).

vnu.edu.vn HTML validation

Errors

Start tag seen without seeing a doctype first. Expected “<!DOCTYPE html>”.

Line: 2 Column: 1 - 6
"... <html> <head..."

Attribute “charset” not allowed on element “meta” at this point.

Line: 6 Column: 2 - 70
"...-icon"/> <META http-equiv='Content-Type' content="text/html" charset ="UTF-8"> <..."

Bad value “text/html” for attribute “content” on element “meta”: The legacy encoding declaration did not start with “text/html;”.

Line: 6 Column: 2 - 70
"...-icon"/> <META http-equiv='Content-Type' content="text/html" charset ="UTF-8"> <..."

A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.

Line: 6 Column: 2 - 70
"...-icon"/> <META http-equiv='Content-Type' content="text/html" charset ="UTF-8"> <..."

Bad value “cache-control” for attribute “http-equiv” on element “meta”.

Line: 9 Column: 2 - 52
"...QGHN" /> <META content='private' http-equiv='cache-control'> <met..."

The “center” element is obsolete. Use CSS instead.

Line: 48 Column: 1 - 8
"...808080"> <center> <div ..." Line: 1278 Column: 78 - 85
"...:#c4151c"><center> <t..." Line: 1474 Column: 4 - 11
"... 8px"> <center> ..." Line: 1476 Column: 3 - 10
"...r> <center> <..." Line: 1496 Column: 4 - 11
"...gbao"> <center> <..."

Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)

Line: 54 Column: 1 - 23
"...FFF"> <style type="text/css"> #se..." Line: 690 Column: 6 - 28
"...div> <style type="text/css"> .line..." Line: 704 Column: 1 - 23
"...</style> <style type="text/css"> div...." Line: 1069 Column: 1 - 23
"...script> <style type="text/css"> /*ph..." Line: 1688 Column: 1 - 23
"...olid"> <style type="text/css"> div.d..."

CSS: Parse Error.

Line: 78 Column: - 20
"...earchform label, { display:non..."

CSS: “padding”: “-2px” negative values are not allowed.

Line: 84 Column: 26 - 28
"... 3px -2px 5px; ..."

CSS: “font-weight”: “none” is not a “font-weight” value.

Line: 107 Column: 16 - 19
"...nt-weight:none; } ..." Line: 1171 Column: 15 - 18
"...nt-weight:none; te..." Line: 1227 Column: 15 - 18
"...nt-weight:none; te..."

Bad value “99px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.

Line: 119 Column: 5 - 60
"...px;"> <img src="images/logo.png" height="99px" border="0" /> <..."

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

Line: 119 Column: 5 - 60
"...px;"> <img src="images/logo.png" height="99px" border="0" /> <..." Line: 723 Column: 129 - 201
"...e.htm" > <img src="/upload/2019/02/23665/image/AI7I4570.jpg" class="home-img" /></a> ..." Line: 746 Column: 102 - 196
"...i.htm" > <img src="/upload/2019/02/23658/image/2019_02_28_QS Subject 2019 VNU.jpg" class="home-img" /></a> ..." Line: 769 Column: 139 - 237
"...N.htm" > <img src="/upload/2019/02/23653/image/VNU_Hoi nghi Tong ket Ban TCPC (5).jpg" class="home-img" /></a> ..." Line: 795 Column: 128 - 233
"...9.htm" > <img src="/upload/2019/02/23652/image/VNU_Chuc mung ngay thay thuoc Vietnam (8).jpg" class="home-img" /></a> ..." Line: 818 Column: 110 - 205
"...a.htm" > <img src="/upload/2019/02/23654/image/2019_02_27 VNU - cac DH Nga (2).jpg" class="home-img" /></a> ..." Line: 841 Column: 130 - 246
"...o.htm" > <img src="/upload/2019/02/23650/image/VNU_Ky ket DH Cong Nghe-Samsung Display VietNam (10).jpg" class="home-img" /></a> ..." Line: 867 Column: 126 - 220
"...4.htm" > <img src="/upload/2019/02/23645/image/VNU_DH So hoa 4_0 20190222 (7).jpg" class="home-img" /></a> ..." Line: 890 Column: 128 - 211
"...n.htm" > <img src="/upload/2019/02/23627/image/1-20190220155618125.jpg" class="home-img" /></a> ..." Line: 913 Column: 103 - 172
"...9.htm" > <img src="/upload/2019/02/23621/image/thumb.jpg" class="home-img" /></a> ..." Line: 939 Column: 103 - 189
"...c.htm" > <img src="/upload/2019/02/23619/image/VNU_Tiep DH Yonsei (4).jpg" class="home-img" /></a> ..." Line: 962 Column: 96 - 191
"...9.htm" > <img src="/upload/2019/02/23611/image/VNU-THPT Khoa hoc Giao duc (37).jpg" class="home-img" /></a> ..." Line: 985 Column: 117 - 229
"...n.htm" > <img src="/upload/2019/02/23590/image/VNU_Giam doc gap mat Pho Thu tuong 20190212 (12).jpg" class="home-img" /></a> ..." Line: 1018 Column: 6 - 130
"...n/"> <img src="/Libaries/images/Templates/Photogallery/200x140/VNUAlumni2016s.jpg" style="width:195px;height:161px;" border="0px"> ..." Line: 1028 Column: 7 - 129
"...m"> <img src="/Libaries/images/Templates/Photogallery/khoahoc/Tuyensinh2019a.jpg" style="width:469px;height:auto" border="0px"> ..." Line: 1443 Column: 9 - 93
"...> <img src="images/port/conghanhchinh.jpg" style="width:154px;height:74px" border="0"/> ..." Line: 1448 Column: 9 - 89
"...> <img src="images/port/congcanbo.jpg" style="width:154px;height:74px" border="0"/> ..." Line: 1459 Column: 9 - 92
"...> <img src="images/port/congnguoihoc.jpg" style="width:154px;height:74px" border="0"/> ..." Line: 1464 Column: 9 - 93
"...> <img src="images/port/congtuyensinh.jpg" style="width:154px;height:74px" border="0"/> ..." Line: 1515 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1520 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1525 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1530 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1535 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1540 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1545 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1550 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1555 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1560 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1567 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1574 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1581 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1588 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1595 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..."

The “cellpadding” attribute on the “table” element is obsolete. Use CSS instead.

Line: 141 Column: 9 - 66
"...> <table cellpadding="0px" cellspacing="0px" width="250px" > ..." Line: 656 Column: 7 - 69
"... > <table style="width:100%" cellpadding="0px" cellspacing="0px" > ..." Line: 1279 Column: 4 - 76
"...enter> <table width="290px" height="145px" cellpadding="0px" cellspacing="0px"> <..." Line: 1439 Column: 5 - 68
"...ht1"> <table cellpadding="0" cellspacing="0" border="0" height="74px"> ..." Line: 1455 Column: 5 - 70
"...t11"> <table cellpadding="0" cellspacing="0" border="0" height="74px " > ..." Line: 1477 Column: 5 - 71
"...nter> <table width="280" height="23" cellpadding="0px" cellspacing="0px"> ..." Line: 1497 Column: 5 - 75
"...nter> <table width="280" cellpadding="0px" cellspacing="0px" class="tbtbmoi"> ..." Line: 1613 Column: 8 - 64
"... > <table height ="161" cellpadding="0px" cellspacing="0px"> ..." Line: 1777 Column: 2 - 101
"...nquyen"> <table cellpadding="0px" cellspacing="0px" style="margin-top:10px; margin-left:10px;color:#565e6d;"> <tr..." Line: 1801 Column: 2 - 66
"...ivmenu"> <table cellpadding="0px" cellspacing="0px" class="tblmenubottom"> <tr..."

The “cellspacing” attribute on the “table” element is obsolete. Use CSS instead.

The “width” attribute on the “table” element is obsolete. Use CSS instead.

Line: 141 Column: 9 - 66
"...> <table cellpadding="0px" cellspacing="0px" width="250px" > ..." Line: 1279 Column: 4 - 76
"...enter> <table width="290px" height="145px" cellpadding="0px" cellspacing="0px"> <..." Line: 1477 Column: 5 - 71
"...nter> <table width="280" height="23" cellpadding="0px" cellspacing="0px"> ..." Line: 1497 Column: 5 - 75
"...nter> <table width="280" cellpadding="0px" cellspacing="0px" class="tbtbmoi"> ..."

No “li” element in scope but a “li” end tag seen.

Line: 633 Column: 2 - 6
".../li> </li> </ul..."

The “align” attribute on the “div” element is obsolete. Use CSS instead.

Line: 721 Column: 6 - 70
"...y" > <div style="width:160px;padding:0px; float:left;" align="center"> ..." Line: 744 Column: 6 - 70
"...y" > <div style="width:160px;padding:0px; float:left;" align="center"> ..." Line: 767 Column: 6 - 70
"...y" > <div style="width:160px;padding:0px; float:left;" align="center"> ..." Line: 793 Column: 6 - 70
"...y" > <div style="width:160px;padding:0px; float:left;" align="center"> ..." Line: 816 Column: 6 - 70
"...y" > <div style="width:160px;padding:0px; float:left;" align="center"> ..." Line: 839 Column: 6 - 70
"...y" > <div style="width:160px;padding:0px; float:left;" align="center"> ..." Line: 865 Column: 6 - 70
"...y" > <div style="width:160px;padding:0px; float:left;" align="center"> ..." Line: 888 Column: 6 - 70
"...y" > <div style="width:160px;padding:0px; float:left;" align="center"> ..." Line: 911 Column: 6 - 70
"...y" > <div style="width:160px;padding:0px; float:left;" align="center"> ..." Line: 937 Column: 6 - 70
"...y" > <div style="width:160px;padding:0px; float:left;" align="center"> ..." Line: 960 Column: 6 - 70
"...y" > <div style="width:160px;padding:0px; float:left;" align="center"> ..." Line: 983 Column: 6 - 70
"...y" > <div style="width:160px;padding:0px; float:left;" align="center"> ..."

Bad value “/upload/2019/02/23658/image/2019_02_28_QS Subject 2019 VNU.jpg” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 746 Column: 102 - 196
"...i.htm" > <img src="/upload/2019/02/23658/image/2019_02_28_QS Subject 2019 VNU.jpg" class="home-img" /></a> ..."

Bad value “/upload/2019/02/23653/image/VNU_Hoi nghi Tong ket Ban TCPC (5).jpg” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 769 Column: 139 - 237
"...N.htm" > <img src="/upload/2019/02/23653/image/VNU_Hoi nghi Tong ket Ban TCPC (5).jpg" class="home-img" /></a> ..."

Bad value “/upload/2019/02/23652/image/VNU_Chuc mung ngay thay thuoc Vietnam (8).jpg” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 795 Column: 128 - 233
"...9.htm" > <img src="/upload/2019/02/23652/image/VNU_Chuc mung ngay thay thuoc Vietnam (8).jpg" class="home-img" /></a> ..."

Bad value “/upload/2019/02/23654/image/2019_02_27 VNU - cac DH Nga (2).jpg” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 818 Column: 110 - 205
"...a.htm" > <img src="/upload/2019/02/23654/image/2019_02_27 VNU - cac DH Nga (2).jpg" class="home-img" /></a> ..."

Bad value “/upload/2019/02/23650/image/VNU_Ky ket DH Cong Nghe-Samsung Display VietNam (10).jpg” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 841 Column: 130 - 246
"...o.htm" > <img src="/upload/2019/02/23650/image/VNU_Ky ket DH Cong Nghe-Samsung Display VietNam (10).jpg" class="home-img" /></a> ..."

Bad value “/upload/2019/02/23645/image/VNU_DH So hoa 4_0 20190222 (7).jpg” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 867 Column: 126 - 220
"...4.htm" > <img src="/upload/2019/02/23645/image/VNU_DH So hoa 4_0 20190222 (7).jpg" class="home-img" /></a> ..."

Bad value “/ttsk/?C151/N23621/[Infographic]-Thong-tin-tuyen-sinh-dai-hoc-chinh-quy-2019.htm” for attribute “href” on element “a”: Illegal character in query: “[” is not allowed.

Line: 913 Column: 9 - 100
"... <a href="/ttsk/?C151/N23621/[Infographic]-Thong-tin-tuyen-sinh-dai-hoc-chinh-quy-2019.htm" > <img..." Line: 918 Column: 10 - 121
"... <a href="/ttsk/?C151/N23621/[Infographic]-Thong-tin-tuyen-sinh-dai-hoc-chinh-quy-2019.htm" class="home-title-a"> [Info..." Line: 926 Column: 10 - 145
"... <a href="/ttsk/?C151/N23621/[Infographic]-Thong-tin-tuyen-sinh-dai-hoc-chinh-quy-2019.htm" class="home-brief-a" style="margin-top:8px;"> Năm 2..."

Bad value “/upload/2019/02/23619/image/VNU_Tiep DH Yonsei (4).jpg” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 939 Column: 103 - 189
"...c.htm" > <img src="/upload/2019/02/23619/image/VNU_Tiep DH Yonsei (4).jpg" class="home-img" /></a> ..."

Bad value “/upload/2019/02/23611/image/VNU-THPT Khoa hoc Giao duc (37).jpg” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 962 Column: 96 - 191
"...9.htm" > <img src="/upload/2019/02/23611/image/VNU-THPT Khoa hoc Giao duc (37).jpg" class="home-img" /></a> ..."

Bad value “/upload/2019/02/23590/image/VNU_Giam doc gap mat Pho Thu tuong 20190212 (12).jpg” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 985 Column: 117 - 229
"...n.htm" > <img src="/upload/2019/02/23590/image/VNU_Giam doc gap mat Pho Thu tuong 20190212 (12).jpg" class="home-img" /></a> ..."

Start tag “a” seen but an element of the same type was already open.

Line: 1017 Column: 17 - 53
"... <a href="https://alumni.vnu.edu.vn/"> ..."

Bad value “0px” for attribute “border” on element “img”: Only “0” is a permitted zero literal.

Line: 1018 Column: 6 - 130
"...n/"> <img src="/Libaries/images/Templates/Photogallery/200x140/VNUAlumni2016s.jpg" style="width:195px;height:161px;" border="0px"> ..." Line: 1028 Column: 7 - 129
"...m"> <img src="/Libaries/images/Templates/Photogallery/khoahoc/Tuyensinh2019a.jpg" style="width:469px;height:auto" border="0px"> ..."

Stray end tag “a”.

Line: 1022 Column: 3 - 6
"... </a> </di..."

CSS: “padding-bottom”: “-2px” negative values are not allowed.

Line: 1081 Column: 19 - 21
"...g-bottom:-2px; } ..."

Attribute “height” not allowed on element “table” at this point.

Line: 1279 Column: 4 - 76
"...enter> <table width="290px" height="145px" cellpadding="0px" cellspacing="0px"> <..." Line: 1439 Column: 5 - 68
"...ht1"> <table cellpadding="0" cellspacing="0" border="0" height="74px"> ..." Line: 1455 Column: 5 - 70
"...t11"> <table cellpadding="0" cellspacing="0" border="0" height="74px " > ..." Line: 1477 Column: 5 - 71
"...nter> <table width="280" height="23" cellpadding="0px" cellspacing="0px"> ..." Line: 1613 Column: 8 - 64
"... > <table height ="161" cellpadding="0px" cellspacing="0px"> ..."

Attribute “height” not allowed on element “tr” at this point.

Line: 1280 Column: 77 - 22
"...ing="0px"> <tr height="15px"><td st..."

Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)

Line: 1290 Column: 2 - 38
".../a></li> <div id="megamenu1" class="megamenu"> <di..." Line: 1318 Column: 2 - 38
".../a></li> <div id="megamenu1" class="megamenu"> <di..." Line: 1342 Column: 2 - 38
".../a></li> <div id="megamenu1" class="megamenu"> <di..." Line: 1370 Column: 2 - 38
".../a></li> <div id="megamenu1" class="megamenu"> <di..." Line: 1388 Column: 2 - 38
".../a></li> <div id="megamenu1" class="megamenu"> <di..."

Duplicate ID “megamenu1”.

Line: 1318 Column: 2 - 38
".../a></li> <div id="megamenu1" class="megamenu"> <di..." Line: 1342 Column: 2 - 38
".../a></li> <div id="megamenu1" class="megamenu"> <di..." Line: 1370 Column: 2 - 38
".../a></li> <div id="megamenu1" class="megamenu"> <di..." Line: 1388 Column: 2 - 38
".../a></li> <div id="megamenu1" class="megamenu"> <di..."

The “border” attribute on the “table” element is obsolete. Use CSS instead.

Line: 1439 Column: 5 - 68
"...ht1"> <table cellpadding="0" cellspacing="0" border="0" height="74px"> ..." Line: 1455 Column: 5 - 70
"...t11"> <table cellpadding="0" cellspacing="0" border="0" height="74px " > ..."

The “align” attribute on the “td” element is obsolete. Use CSS instead.

Line: 1480 Column: 10 - 25
"... <tr> <td align="center"> ..."

Bad value “15px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.

Line: 1515 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1520 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1525 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1530 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1535 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1540 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1545 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1550 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1555 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1560 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1567 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1574 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1581 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1588 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1595 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..."

Bad value “31px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.

Bad value “/ttsk/?C2097/N23594/VNU-–-HSB:-Thong-bao-tuyen-sinh-Thac-si-Khoa-hoc-Quan-tri-Kinh-doanh,-dot-1---nam-2019 .htm” for attribute “href” on element “a”: Tab, new line or carriage return found.

Line: 1565 Column: 8 - 6
"... <a href="/ttsk/?C2097/N23594/VNU-–-HSB:-Thong-bao-tuyen-sinh-Thac-si-Khoa-hoc-Quan-tri-Kinh-doanh,-dot-1---nam-2019 .htm"> VNU –..."

Bad value “/ttsk/?C2095/N23588/doi-moi-hoat-dong-giang-day-o-dHQGHN .htm” for attribute “href” on element “a”: Tab, new line or carriage return found.

Line: 1572 Column: 8 - 6
"... <a href="/ttsk/?C2095/N23588/doi-moi-hoat-dong-giang-day-o-dHQGHN .htm"> Đổi m..."

Bad value “/ttsk/?C2107/N23586/Hoi-thao-chuyen-de-ve-lap-ke-hoach-va-thu-nghiem-lam-sang-toan-cau-lan-thu-3-tai-Nhat-Ban .htm” for attribute “href” on element “a”: Tab, new line or carriage return found.

Line: 1579 Column: 8 - 6
"... <a href="/ttsk/?C2107/N23586/Hoi-thao-chuyen-de-ve-lap-ke-hoach-va-thu-nghiem-lam-sang-toan-cau-lan-thu-3-tai-Nhat-Ban .htm"> Hội t..."

Bad value “/ttsk/?C2096/N23585/Hoc-bong-trao-doi-giao-duc-cho-phat-trien-cua-Chinh-phu-Canada .htm” for attribute “href” on element “a”: Tab, new line or carriage return found.

Line: 1586 Column: 8 - 6
"... <a href="/ttsk/?C2096/N23585/Hoc-bong-trao-doi-giao-duc-cho-phat-trien-cua-Chinh-phu-Canada .htm"> Học b..."

Bad value “/ttsk/?C2099/N23546/Vien-Vi-sinh-vat-va-Cong-nghe-Sinh-hoc-tuyen-sinh-dao-tao-tien-si-nam-2019 .htm” for attribute “href” on element “a”: Tab, new line or carriage return found.

Line: 1593 Column: 8 - 6
"... <a href="/ttsk/?C2099/N23546/Vien-Vi-sinh-vat-va-Cong-nghe-Sinh-hoc-tuyen-sinh-dao-tao-tien-si-nam-2019 .htm"> Viện ..."

CSS: “text-decoration”: Missing a semicolon before the property name “font-size”.

Line: 1625 Column: 8 - 29
"...2> <a href="/ttsk/?C1660" style="font-size:14px; color:#fff!important;text-decoration: none font-size: 14px; margin: 0; text-transform: uppercase; text-decoration: none; font-weight: bold; line-height: 25px; height: 25px; background: #af0900 no-repeat 5px 0; color: #fff; padding-left: 7px;" > ..."

Bad value “/ttsk/?C1660/N23538/Tap-doan-Vingroup-trao-500-trieu-dong-hoc-bong-cho-sinh-vien-dHQGHN .htm” for attribute “href” on element “a”: Tab, new line or carriage return found.

Line: 1636 Column: 7 - 6
"..."> <a href="/ttsk/?C1660/N23538/Tap-doan-Vingroup-trao-500-trieu-dong-hoc-bong-cho-sinh-vien-dHQGHN .htm"><img s..." Line: 1640 Column: 9 - 6
"... <a style="font-size:13px; color: #fff!important; text-decoration:none; line-height: 18px;padding-bottom:2px" href="/ttsk/?C1660/N23538/Tap-doan-Vingroup-trao-500-trieu-dong-hoc-bong-cho-sinh-vien-dHQGHN .htm"> Tập đ..."

No space between attributes.

Line: 1636 Column: - 88
"...52).jpg" alt=""style =" paddin..." Line: 1644 Column: - 50
"...fff;height:1px""></tr> ..." Line: 1650 Column: - 179
"...(8).jpg" alt=""style =" paddin..." Line: 1656 Column: - 50
"...fff;height:1px""></tr> ..."

Bad value “/upload/2019/01/23538/image/VNU_Trao hoc bong Vingroup (52).jpg” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 1636 Column: 7 - 163
"...GHN .htm"><img src="/upload/2019/01/23538/image/VNU_Trao hoc bong Vingroup (52).jpg" alt=""style =" padding: 3px; height: 60px; width: 100px; padding-bottom: 2px;" /> ..."

End tag “td” seen, but there were open elements.

Line: 1637 Column: 6 - 10
"... /> </td> ..." Line: 1651 Column: 6 - 10
"... /> </td> ..."

Unclosed element “a”.

Line: 1636 Column: 7 - 6
"..."> <a href="/ttsk/?C1660/N23538/Tap-doan-Vingroup-trao-500-trieu-dong-hoc-bong-cho-sinh-vien-dHQGHN .htm"><img s..." Line: 1650 Column: 7 - 88
"..."> <a href="/ttsk/?C1660/N23492/dHQGHN-trao-hoc-bong-Nguyen-Truong-To-lan-thu-8.htm"><img s..."

Saw “"” when expecting an attribute name. Probable cause: “=” missing immediately before.

Line: 1644 Column: - 50
"...fff;height:1px""></tr> ..." Line: 1656 Column: - 50
"...fff;height:1px""></tr> ..."

Attribute “"” not allowed on element “tr” at this point.

Line: 1644 Column: 11 - 51
"... </tr> <tr style="background-color:#fff;height:1px""></tr> ..." Line: 1656 Column: 11 - 51
"... </tr> <tr style="background-color:#fff;height:1px""></tr> ..."

Row 3 of a row group established by a “tbody” element has no cells beginning on it.

Line: 1644 Column: 52 - 56
"...ght:1px""></tr> ..."

Bad value “/upload/2019/01/23492/image/(VNU) Trao hoc bong Nguyen Truong To (8).jpg” for attribute “src” on element “img”: Illegal character in path segment: space is not allowed.

Line: 1650 Column: 89 - 254
"...hu-8.htm"><img src="/upload/2019/01/23492/image/(VNU) Trao hoc bong Nguyen Truong To (8).jpg" alt=""style =" padding: 3px; height: 60px; width: 100px; padding-bottom: 2px;" /> ..."

Row 5 of a row group established by a “tbody” element has no cells beginning on it.

Line: 1656 Column: 52 - 56
"...ght:1px""></tr> ..."

Bad value “140px” for attribute “width” on element “embed”: Expected a digit but saw “p” instead.

Line: 1769 Column: 4 - 283
"...lank"> <embed src="http://s10.histats.com/605.swf" flashvars="jver=1&acsid=1631798&domi=4" quality="high" width="140px" height="58px" name="605.swf" align="middle" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" wmode="transparent" /></a> ..."

Bad value “58px” for attribute “height” on element “embed”: Expected a digit but saw “p” instead.

The “name” attribute on the “embed” element is obsolete. Use the “id” attribute instead.

The “align” attribute on the “embed” element is obsolete. Use CSS instead.

The element “embed” must not appear as a descendant of the “a” element.

Duplicate attribute “border”.

Line: 1812 Column: - 134
"...h="30px" border="0"/></a> ..." Line: 1814 Column: - 164
"...h="30px" border="0"/></a> ..."

Bad value “30px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.

Line: 1812 Column: 53 - 139
"...U.DHQG/" ><img border='0' alt="" src="images/facebook-logo-grey.png" width="30px" border="0"/></a> ..." Line: 1814 Column: 84 - 169
"...atured" ><img border='0' alt="" src="images/youtube-logo-grey.png" width="30px" border="0"/></a> ..."

Named character reference was not terminated by a semicolon. (Or “&” should have been escaped as “&”.)

Line: 1813 Column: - 11
"...</a> &nbsp <a href="..."

Stray start tag “script”.

Line: 1828 Column: 1 - 30
"...> </html> <SCRIPT LANGUAGE="JavaScript"> <!-- ..."

Cannot recover after last error. Any further errors will be ignored.

Line: 1828 Column: 1 - 30
"...> </html> <SCRIPT LANGUAGE="JavaScript"> <!-- ..."

Warnings

The “type” attribute is unnecessary for JavaScript resources.

Line: 13 Column: 9 - 68
"... <script type="text/javascript" src="js/jquery-1.5.1.min.js"></scri..." Line: 14 Column: 4 - 57
"...cript> <script type="text/javascript" src="js/jkmegamenu.js"></scri..." Line: 15 Column: 9 - 68
"...> <script type="text/javascript" src="js/jquery-1.5.1.min.js"></scri..." Line: 16 Column: 4 - 60
"...cript> <script type="text/javascript" src="js/jquery.corner.js"></scri..." Line: 17 Column: 13 - 69
"... <script type="text/javascript" src="js/simplegallery.js"></scri..." Line: 18 Column: 4 - 67
"...cript> <script type="text/javascript" src="js/jquery.dropdownPlain.js"></scri..." Line: 19 Column: 4 - 72
"...cript> <script src="js/class.horinaja.jquery.js?v=2" type="text/javascript"></scri..." Line: 32 Column: 4 - 34
"...if]--> <script type="text/javascript"> ..." Line: 639 Column: 1 - 31
"...> </div> <script type="text/javascript"> $("d..." Line: 1041 Column: 1 - 31
"...v> </div> <script type="text/javascript"> <!-- ..." Line: 1054 Column: 1 - 31
"...e-right"> <script type="text/javascript"> $('..." Line: 1060 Column: 1 - 31
"...cript> <script type="text/javascript"> //Th..." Line: 1313 Column: 6 - 36
"... <script type="text/javascript"> ..." Line: 1337 Column: 6 - 36
"... <script type="text/javascript"> ..." Line: 1365 Column: 6 - 36
"... <script type="text/javascript"> ..." Line: 1383 Column: 6 - 36
"... <script type="text/javascript"> ..." Line: 1425 Column: 6 - 36
"... <script type="text/javascript"> ..." Line: 1666 Column: 1 - 31
"...v> </div> <script type="text/javascript"> funct..."

The “type” attribute for the “style” element is not needed and should be omitted.

The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.

Line: 119 Column: 5 - 60
"...px;"> <img src="images/logo.png" height="99px" border="0" /> <..." Line: 1018 Column: 6 - 130
"...n/"> <img src="/Libaries/images/Templates/Photogallery/200x140/VNUAlumni2016s.jpg" style="width:195px;height:161px;" border="0px"> ..." Line: 1028 Column: 7 - 129
"...m"> <img src="/Libaries/images/Templates/Photogallery/khoahoc/Tuyensinh2019a.jpg" style="width:469px;height:auto" border="0px"> ..." Line: 1443 Column: 9 - 93
"...> <img src="images/port/conghanhchinh.jpg" style="width:154px;height:74px" border="0"/> ..." Line: 1448 Column: 9 - 89
"...> <img src="images/port/congcanbo.jpg" style="width:154px;height:74px" border="0"/> ..." Line: 1459 Column: 9 - 92
"...> <img src="images/port/congnguoihoc.jpg" style="width:154px;height:74px" border="0"/> ..." Line: 1464 Column: 9 - 93
"...> <img src="images/port/congtuyensinh.jpg" style="width:154px;height:74px" border="0"/> ..." Line: 1515 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1520 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1525 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1530 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1535 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1540 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1545 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1550 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1555 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1560 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1567 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1574 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1581 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1588 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1595 Column: 8 - 80
"...> <img src="images/icon_new1.gif" height="15px" width="31px" border="0" /> ..." Line: 1770 Column: 4 - 80
".../></a> <img src="http://sstatic1.histats.com/0.gif?1631798&101" alt="" border="0"> <!-..." Line: 1812 Column: 53 - 139
"...U.DHQG/" ><img border='0' alt="" src="images/facebook-logo-grey.png" width="30px" border="0"/></a> ..." Line: 1814 Column: 84 - 169
"...atured" ><img border='0' alt="" src="images/youtube-logo-grey.png" width="30px" border="0"/></a> ..."

The first occurrence of ID “megamenu1” was here.

Line: 1290 Column: 2 - 38
".../a></li> <div id="megamenu1" class="megamenu"> <di..." Line: 1290 Column: 2 - 38
".../a></li> <div id="megamenu1" class="megamenu"> <di..." Line: 1290 Column: 2 - 38
".../a></li> <div id="megamenu1" class="megamenu"> <di..." Line: 1290 Column: 2 - 38
".../a></li> <div id="megamenu1" class="megamenu"> <di..."

Attribute “"” is not serializable as XML 1.0.

Line: 1644 Column: 11 - 51
"... </tr> <tr style="background-color:#fff;height:1px""></tr> ..." Line: 1656 Column: 11 - 51
"... </tr> <tr style="background-color:#fff;height:1px""></tr> ..."

A table row was 0 columns wide, which is less than the column count established by the first row (2).

Line: 1644 Column: 52 - 56
"...ght:1px""></tr> ..." Line: 1656 Column: 52 - 56
"...ght:1px""></tr> ..."

A table row was 2 columns wide and exceeded the column count established by the first row (1).

Line: 1786 Column: 3 - 7
"...Nam<td> </tr> <tr..." Line: 1789 Column: 3 - 7
"....vn<td> </tr> <tr..." Line: 1797 Column: 3 - 7
"... <td> </tr> </ta..."

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vnu.edu.vn Ping

Ping is a computer network administration software utility used to test the reachability of a host on an Internet Protocol (IP) network. It measures the round-trip time for messages sent from the originating host to a destination computer that are echoed back to the source.

vnu.edu.vn TRACEROUTE

Traceroute is a computer network diagnostic tool for displaying the route (path) and measuring transit delays of packets across an Internet Protocol (IP) network. The history of the route is recorded as the round-trip times of the packets received from each successive host (remote node) in the route (path); the sum of the mean times in each hop is a measure of the total time spent to establish the connection. Traceroute proceeds unless all (three) sent packets are lost more than twice, then the connection is lost and the route cannot be evaluated.

VNU.EDU.VN ĐẠI HỌC QUỐC GIA HÀ NỘI - TRANG CHỦ

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vnu.edu.vn Desktop Speed Test Quick Summary

priority - 376Optimize images

Properly formatting and compressing images can save many bytes of data.

Optimize the following images to reduce their size by 3.6MiB (88% reduction).

priority - 26Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

priority - 13Enable compression

Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.

Enable compression for the following resources to reduce their transfer size by 126.7KiB (69% reduction).

priority - 8Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 7 blocking script resources and 7 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 4Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

priority - 1Minify HTML

Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.

Minify HTML for the following resources to reduce their size by 12.7KiB (20% reduction).

priority - 1Reduce server response time

In our test, your server responded in 0.31 seconds.

vnu.edu.vn Desktop Resource Breakdown

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vnu.edu.vn Mobile Speed Test Quick Summary

priority - 272Optimize images

Properly formatting and compressing images can save many bytes of data.

Optimize the following images to reduce their size by 2.6MiB (94% reduction).

priority - 37Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

priority - 32Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 7 blocking script resources and 7 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 13Enable compression

Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.

Enable compression for the following resources to reduce their transfer size by 125.3KiB (69% reduction).

priority - 8Prioritize visible content

Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.

priority - 7Reduce server response time

In our test, your server responded in 0.69 seconds.

priority - 1Minify HTML

Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.

Minify HTML for the following resources to reduce their size by 12.4KiB (20% reduction).

vnu.edu.vn Mobile Resource Breakdown

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vnu.edu.vn Mobile Usability Test Quick Summary

priority - 40Use legible font sizes

The following text on your page renders in a way that may be difficult for some of your visitors to read. Use legible font sizes to provide a better user experience.

The following text fragments have a small font size. Increase the font size to make them more legible.

priority - 12Size tap targets appropriately

Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.

The following tap targets are close to other nearby tap targets and may need additional spacing around them.

priority - 10Configure the viewport

Your page does not have a viewport specified. This causes mobile devices to render your page as it would appear on a desktop browser, scaling it down to fit on a mobile screen. Configure a viewport to allow your page to render properly on all devices.

priority - 3Avoid plugins

Your page uses plugins, which prevents portions of your page from being used on many platforms. Find alternatives for plugin based content to increase compatibility.

Find alternatives for the following Flash plugins.

vnu.edu.vn HTML validation

Errors

Start tag seen without seeing a doctype first. Expected “<!DOCTYPE html>”.

Attribute “charset” not allowed on element “meta” at this point.

Bad value “text/html” for attribute “content” on element “meta”: The legacy encoding declaration did not start with “text/html;”.

A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.

Bad value “cache-control” for attribute “http-equiv” on element “meta”.

The “center” element is obsolete. Use CSS instead.

Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)

CSS: Parse Error.

CSS: “padding”: “-2px” negative values are not allowed.

CSS: “font-weight”: “none” is not a “font-weight” value.

Bad value “99px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

Named character reference was not terminated by a semicolon. (Or “&” should have been escaped as “&”.)