vnseo.edu.vn Website Information

Daily Unique Visits: 2,447

Daily Page Views: 7,341

Income Per Day: $22

Estimated Value: $7,920

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

No name server records were found.

and is probably hosted by AS-CHOOPA - Choopa, LLC, US. See the full list of other websites hosted by AS-CHOOPA - Choopa, LLC, US.

The highest website vnseo.edu.vn position in Alexa rank database was 292803 and the lowest rank position was 453148. Current position of vnseo.edu.vn in Alexa rank database is 439509.

Desktop speed score of vnseo.edu.vn (52/100) is better than the results of 25.95% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of vnseo.edu.vn (97/100) is better than the results of 49.9% of other sites and means that the page is mobile-friendly.

Mobile speed score of vnseo.edu.vn (48/100) is better than the results of 30.32% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

vnseo.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.

vnseo.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.

vnseo.edu.vn domain is not supported

vnseo.edu.vn server information

Servers Location

vnseo.edu.vn desktop page speed rank

Last tested: 2016-11-20

Desktop Speed Bad

52/100

vnseo.edu.vn Desktop Speed Test Quick Summary

priority - 70Optimize images

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priority - 16Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 15 blocking script resources and 8 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

https://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js
https://www.vnseo.edu.vn/js/xenforo/xenforo.js?_v=9f28f90f
https://www.vnseo.edu.vn/js/VietXfAdvStats/frontend.js?_v=9f28f90f
https://cdnjs.cloudflare.com/ajax/libs/html5shiv/3.7.2/html5shiv.min.js
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https://cdnjs.cloudflare.com/ajax/libs/selectivizr/1.0.2/selectivizr-min.js
https://www.vnseo.edu.vn/js/audentio/uix/modernizr.js?_v=9f28f90f
https://www.vnseo.edu.vn/js/audentio/uix/functions.min.js?_v=9f28f90f
https://www.vnseo.edu.vn/js/audentio/ad_styler/2.1…colpick.js?_v=9f28f90f
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https://cdn.bannersnack.com/iframe/embed.js

Optimize CSS Delivery of the following:

https://www.vnseo.edu.vn/css.php?css=xenforo,form,…3&dir=LTR&d=1479284014
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https://www.vnseo.edu.vn/borderhome.css
https://www.vnseo.edu.vn/css.php?css=uix,xenBlock&…3&dir=LTR&d=1479284014
https://www.vnseo.edu.vn/js/audentio/ad_styler/2.1/stylesheets/colpick.css
https://www.vnseo.edu.vn/js/audentio/ad_styler/2.1/stylesheets/styleit.css
https://fonts.googleapis.com/css?family=PT+Sans:400,700|Open+Sans:400,700
https://maxcdn.bootstrapcdn.com/font-awesome/4.1.0/css/font-awesome.min.css

priority - 10Leverage 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:

https://cdn.bannersnack.com/iframe/embed.js (expiration not specified)
https://longvan.link//www/delivery/fl.js (expiration not specified)
https://longvan.link//www/images/3ed706ae9df8e9ec04630abc29bcd9e5.jpg (expiration not specified)
https://www.vnseo.edu.vn/ads.jpg (expiration not specified)
https://www.vnseo.edu.vn/borderhome.css (expiration not specified)
https://www.vnseo.edu.vn/data/float.png (expiration not specified)
https://www.vnseo.edu.vn/js/audentio/ad_styler/2.1/images/trans/black9.png (expiration not specified)
https://www.vnseo.edu.vn/js/audentio/ad_styler/2.1/stylesheets/colpick.css (expiration not specified)
https://www.vnseo.edu.vn/js/audentio/ad_styler/2.1/stylesheets/styleit.css (expiration not specified)
https://www.vnseo.edu.vn/logo.png (expiration not specified)
https://www.vnseo.edu.vn/styles/default/xenforo/list.gif (expiration not specified)
https://www.vnseo.edu.vn/styles/default/xenforo/listbg.gif (expiration not specified)
https://www.vnseo.edu.vn/styles/default/xenforo/post_old.gif (expiration not specified)
https://www.vnseo.edu.vn/styles/xenblock/xenblock/logo_small.png (expiration not specified)
https://www.vnseo.edu.vn/styles/xenblock/xenblock/vertical_1.png (expiration not specified)
https://www.vnseo.edu.vn/styles/xenblock/xenforo/w…fo_FFFFFF_facebook.gif (expiration not specified)
https://www.vnseo.edu.vn/styles/xenblock/xenforo/xenforo-ui-sprite.png (expiration not specified)
https://static.doubleclick.net/instream/ad_status.js (15 minutes)
https://apis.google.com/js/rpc:shindig_random.js?onload=init (30 minutes)
https://plus.google.com/js/client:plusone.js (30 minutes)
https://www.google-analytics.com/analytics.js (2 hours)

priority - 2Prioritize 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.

The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.

Only about 57% of the final above-the-fold content could be rendered with the full HTML response.

priority - 1Minify CSS

Compacting CSS code can save many bytes of data and speed up download and parse times.

Minify CSS for the following resources to reduce their size by 9KiB (23% reduction).

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priority - 1Reduce server response time

priority - 1Enable compression

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Enable compression for the following resources to reduce their transfer size by 5.2KiB (67% reduction).

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priority - 0Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.

Minify JavaScript for the following resources to reduce their size by 1.9KiB (30% reduction).

Minifying https://www.vnseo.edu.vn/js/audentio/ad_styler/2.1…styleit.js?_v=9f28f90f could save 1.9KiB (30% reduction) after compression.

vnseo.edu.vn Desktop Resource Breakdown

Total Resources	87
Number of Hosts	26
Static Resources	52
JavaScript Resources	29
CSS Resources	11

vnseo.edu.vn mobile page speed rank

Last tested: 2016-11-20

Mobile Speed Bad

48/100

vnseo.edu.vn Mobile Speed Test Quick Summary

priority - 64Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 14 blocking script resources and 8 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 38Optimize images

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

Optimize the following images to reduce their size by 371.7KiB (43% reduction).

Compressing and resizing https://bkasoft.vn/cdn/seo/2016/05/1462559668-khoa…ien-phi-tai-ha-noi.jpg could save 99KiB (96% reduction).
Compressing http://i.imgur.com/tv2cGEl.png could save 55.9KiB (27% reduction).
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Compressing and resizing http://i.imgur.com/2iprDz1.png could save 35.4KiB (85% reduction).
Compressing http://i.imgur.com/TB4e3X3.png could save 23.5KiB (27% reduction).
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Compressing http://i.imgur.com/AmpdJGu.png could save 19.1KiB (35% reduction).
Compressing https://www.vnseo.edu.vn/data/float.png could save 17.9KiB (45% reduction).
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Compressing https://www.vnseo.edu.vn/ads.jpg could save 15.4KiB (19% reduction).
Compressing and resizing http://searchengineland.com/figz/wp-content/seload…green-1920-800x450.jpg could save 13.8KiB (87% reduction).
Compressing https://www.vnseo.edu.vn/styles/default/xenforo/list.gif could save 1.8KiB (44% reduction).
Compressing https://www.vnseo.edu.vn/styles/xenblock/xenblock/logo_small.png could save 886B (62% reduction).

priority - 14Leverage 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:

https://cdn.bannersnack.com/iframe/embed.js (expiration not specified)
https://longvan.link//www/delivery/fl.js (expiration not specified)
https://longvan.link//www/images/3ed706ae9df8e9ec04630abc29bcd9e5.jpg (expiration not specified)
https://www.vnseo.edu.vn/ads.jpg (expiration not specified)
https://www.vnseo.edu.vn/borderhome.css (expiration not specified)
https://www.vnseo.edu.vn/data/float.png (expiration not specified)
https://www.vnseo.edu.vn/js/audentio/ad_styler/2.1/stylesheets/colpick.css (expiration not specified)
https://www.vnseo.edu.vn/js/audentio/ad_styler/2.1/stylesheets/styleit.css (expiration not specified)
https://www.vnseo.edu.vn/logo.png (expiration not specified)
https://www.vnseo.edu.vn/styles/default/xenforo/list.gif (expiration not specified)
https://www.vnseo.edu.vn/styles/default/xenforo/listbg.gif (expiration not specified)
https://www.vnseo.edu.vn/styles/default/xenforo/post_old.gif (expiration not specified)
https://www.vnseo.edu.vn/styles/xenblock/xenblock/logo_small.png (expiration not specified)
https://www.vnseo.edu.vn/styles/xenblock/xenblock/vertical_1.png (expiration not specified)
https://www.vnseo.edu.vn/styles/xenblock/xenforo/xenforo-ui-sprite.png (expiration not specified)
https://static.doubleclick.net/instream/ad_status.js (15 minutes)
https://apis.google.com/js/rpc:shindig_random.js?onload=init (30 minutes)
https://plus.google.com/js/client:plusone.js (30 minutes)
https://www.google-analytics.com/analytics.js (2 hours)

priority - 1Reduce server response time

priority - 1Minify CSS

Compacting CSS code can save many bytes of data and speed up download and parse times.

Minify CSS for the following resources to reduce their size by 9KiB (23% reduction).

priority - 1Enable 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 5.2KiB (67% reduction).

Compressing https://longvan.link//www/delivery/fl.js could save 3.6KiB (66% reduction).
Compressing https://longvan.link//www/delivery/spcjs.php?id=18 could save 1.5KiB (69% reduction).

priority - 0Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.

Minify JavaScript for the following resources to reduce their size by 1.9KiB (30% reduction).

Minifying https://www.vnseo.edu.vn/js/audentio/ad_styler/2.1…styleit.js?_v=9f28f90f could save 1.9KiB (30% reduction) after compression.

vnseo.edu.vn Mobile Resource Breakdown

Total Resources	84
Number of Hosts	26
Static Resources	51
JavaScript Resources	29
CSS Resources	11

vnseo.edu.vn mobile page usability

Last tested: 2016-11-20

Mobile Usability Good

97/100

vnseo.edu.vn Mobile Usability Test Quick Summary

priority - 3Size 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="/#threads-recent" class="active">Bài vết mới</a> is close to 2 other tap targets.

The tap target <a href="/#threads-latest">Chủ đề mới</a> and 1 others are close to other tap targets.

The tap target <a href="threads/tu-kho…ng.238118.html" class="PreviewTooltip">Tứ khóa thay đ…iết tại sao...</a> and 21 others are close to other tap targets.

The tap target <a href="#" class="close"> is close to 1 other tap targets.

The tap target <a href="https://www.vn…ml#post-344473" class="callToAction">Xem ngay</a> is close to 2 other tap targets.

The tap target <a href="http://vinhome…ver.nennha.com">Vinhomes Golden River</a> is close to 1 other tap targets.
The tap target <a href="threads/tan-du…eo.235367.html">15:56</a> and 3 others are close to other tap targets.
The tap target <div id="e_3" class="shape rectangle"> is close to 1 other tap targets.
The tap target <path class="actionMask"> is close to 1 other tap targets.
The tap target <div id="e_15" class="shape line"> is close to 1 other tap targets.
The tap target <div id="e_17" class="shape rectangle"> is close to 1 other tap targets.
The tap target <span id="e_22" class="text-content">Tặng banner /…tlink + ưu đãi</span> is close to 1 other tap targets.
The tap target <div>bannersnack</div> is close to 2 other tap targets.
The tap target <a href="http://lapmangviettel.com.vn">Lắp Mạng Viettel</a> and 1 others are close to other tap targets.
The tap target <a href="/?_debug=1">0.1497 seconds</a> is close to 2 other tap targets.

vnseo.edu.vn HTML validation

Errors

Attribute “xmlns:fb” not allowed here.

Line: 2 Column: 16 - 216
"...TYPE html> <html id="XenForo" lang="vi-VN" dir="LTR" class="Public NoJs LoggedOut Sidebar Responsive hasCollapseNodes hasTabLinks hasSidebarToggle hasSearch navStyle_0 pageStyle_1" xmlns:fb="http://www.facebook.com/2008/fbml"> <head..."

A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.

Line: 9 Column: 2 - 65
"...FOWo" /> <meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=1" /> <..."

Saw “<!--” within a comment. Probable cause: Nested comment (not allowed).

Line: 51 Column: - 13
"...]> ..."

Bogus comment.

Line: 57 Column: - 3
"...s"></script> <![endif]--> <l..."

Bad value “//fonts.googleapis.com/css?family=PT+Sans:400,700|Open+Sans:400,700” for attribute “href” on element “link”: Illegal character in query: “|” is not allowed.

Line: 60 Column: 1 - 114
"...dif]--> <link href='//fonts.googleapis.com/css?family=PT+Sans:400,700|Open+Sans:400,700' rel='stylesheet' type='text/css'> <lin..."

Bad value “subMenu” for attribute “rel” on element “a”: The string “subMenu” is not a registered keyword.

Line: 287 Column: 4 - 77
"...àn</a> <a href="https://www.vnseo.edu.vn/forum/" class="SplitCtrl" rel="subMenu"></a> ..." Line: 313 Column: 4 - 79
"...ên</a> <a href="https://www.vnseo.edu.vn/members/" class="SplitCtrl" rel="subMenu"></a> ..."

No space between attributes.

Line: 382 Column: - 25
"...ass="ad_header";> <a href="ht..."

Attribute “;” not allowed on element “div” at this point.

Line: 382 Column: 3 - 26
"...> <div class="ad_header";> <a h..."

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

Line: 413 Column: 9 - 59
"... <img src="styles/xenblock/xenblock/logo_small.png"> ..." Line: 812 Column: 3 - 49
"...> <img src="styles/default/xenforo/post_old.gif"> ..." Line: 835 Column: 3 - 49
"...> <img src="styles/default/xenforo/post_old.gif"> ..." Line: 854 Column: 3 - 49
"...> <img src="styles/default/xenforo/post_old.gif"> ..." Line: 877 Column: 3 - 49
"...> <img src="styles/default/xenforo/post_old.gif"> ..." Line: 896 Column: 3 - 49
"...> <img src="styles/default/xenforo/post_old.gif"> ..." Line: 915 Column: 3 - 49
"...> <img src="styles/default/xenforo/post_old.gif"> ..." Line: 934 Column: 3 - 49
"...> <img src="styles/default/xenforo/post_old.gif"> ..." Line: 957 Column: 3 - 49
"...> <img src="styles/default/xenforo/post_old.gif"> ..." Line: 980 Column: 3 - 49
"...> <img src="styles/default/xenforo/post_old.gif"> ..." Line: 1003 Column: 3 - 49
"...> <img src="styles/default/xenforo/post_old.gif"> ..." Line: 1026 Column: 3 - 49
"...> <img src="styles/default/xenforo/post_old.gif"> ..." Line: 1045 Column: 3 - 49
"...> <img src="styles/default/xenforo/post_old.gif"> ..." Line: 1068 Column: 3 - 49
"...> <img src="styles/default/xenforo/post_old.gif"> ..." Line: 1087 Column: 3 - 49
"...> <img src="styles/default/xenforo/post_old.gif"> ..." Line: 1110 Column: 3 - 49
"...> <img src="styles/default/xenforo/post_old.gif"> ..."

Bad value “Menu” for attribute “rel” on element “a”: The string “Menu” is not a registered keyword.

Line: 434 Column: 10 - 80
"... <a href="https://www.vnseo.edu.vn/forum/" class="SplitCtrl" rel="Menu"></a> ..." Line: 469 Column: 10 - 82
"... <a href="https://www.vnseo.edu.vn/members/" class="SplitCtrl" rel="Menu"></a> ..." Line: 495 Column: 9 - 52
"... <a rel="Menu" class="navLink NoPopupGadget"><i cla..." Line: 1227 Column: 8 - 107
"..."> <a rel="Menu" class="button NoPopupGadget Tooltip" title="Tìm kiếm hữu ích" data-tipclass="flipped"><span ..." Line: 1933 Column: 8 - 107
"..."> <a rel="Menu" class="button NoPopupGadget Tooltip" title="Tìm kiếm hữu ích" data-tipclass="flipped"><span ..."

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

Line: 578 Column: 1 - 9
"... </header> <c..."

Unclosed element “div”.

Line: 363 Column: 3 - 22
"... <div id="logoBlock"> ..." Line: 354 Column: 1 - 17
"...ader> <div id="header"> ..."

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

Line: 581 Column: 2 - 9
"...eader> <center><div c..." Line: 1856 Column: 6 - 13
".../h3> <center> <a r..."

Bad value “dofollow” for attribute “rel” on element “a”: The string “dofollow” is not a registered keyword.

Line: 589 Column: 1 - 132
"...oss"></a> <a target="_blank" rel="dofollow" href="http://www.vnseo.edu.vn/threads/bang-gia-quang-cao-textlink-tai-www-vnseo-edu-vn.2512.html"> <img..." Line: 1287 Column: 292 - 374
"...bet</a> | <a href="http://www.188bongda.com/188bet-link/" rel="dofollow" title="188bet link">188bet..." Line: 2107 Column: 49 - 137
"...Chơi game <a style="padding: 0 3px;" href="https://gunnyfun.com/" title="gunny" rel = "dofollow" >gunny ..."

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

Line: 592 Column: 4 - 9
"...v> </div></cent..."

Unclosed element “center”.

Line: 581 Column: 2 - 9
"...eader> <center><div c..."

Stray end tag “center”.

Line: 592 Column: 10 - 18
"... </div></center> <..."

Element “div” not allowed as child of element “h3” in this context. (Suppressing further errors from this subtree.)

Line: 605 Column: 3 - 39
"...> <h3> <div class="VietXfAdvStats_Controls"> ..."

Bad value for attribute “href” on element “a”: Illegal character in query: “}” is not allowed.

Line: 1137 Column: 13 - 468
"...<noscript><a href="advstats/threads-latest?node_ids=1%2C2%2C3%2C4%2C5%2C62%2C81%2C6%2C20%2C73%2C7%2C8%2C9%2C10%2C11%2C14%2C15%2C16%2C12%2C17%2C13%2C63%2C27%2C18%2C19%2C21%2C22%2C23%2C24%2C25%2C26%2C28%2C30%2C49%2C31%2C74%2C29%2C43%2C32%2C33%2C35%2C75%2C76%2C77%2C57%2C54%2C34%2C56%2C58%2C36%2C42%2C61%2C66%2C64%2C69%2C72%2C78%2C67%2C68%2C70%2C71%2C79%2C37%2C44%2C45%2C38%2C48%2C60%2C39%2C40%2C41%2C46%2C47%2C50%2C51%2C52&hash=aeff0bf94c3b16df841a4e5743f33656'}">Xem</a..." Line: 1144 Column: 13 - 465
"...<noscript><a href="advstats/threads-hot?node_ids=1%2C2%2C3%2C4%2C5%2C62%2C81%2C6%2C20%2C73%2C7%2C8%2C9%2C10%2C11%2C14%2C15%2C16%2C12%2C17%2C13%2C63%2C27%2C18%2C19%2C21%2C22%2C23%2C24%2C25%2C26%2C28%2C30%2C49%2C31%2C74%2C29%2C43%2C32%2C33%2C35%2C75%2C76%2C77%2C57%2C54%2C34%2C56%2C58%2C36%2C42%2C61%2C66%2C64%2C69%2C72%2C78%2C67%2C68%2C70%2C71%2C79%2C37%2C44%2C45%2C38%2C48%2C60%2C39%2C40%2C41%2C46%2C47%2C50%2C51%2C52&hash=aeff0bf94c3b16df841a4e5743f33656'}">Xem</a..."

Attribute “results” not allowed on element “input” at this point.

Line: 1187 Column: 5 - 162
"...></i> <input type="search" name="keywords" value="" class="textCtrl" placeholder="Tìm kiếm..." results="0" title="Nhập từ khóa và ấn Enter" id="QuickSearchQuery" /> ..." Line: 1893 Column: 5 - 162
"...></i> <input type="search" name="keywords" value="" class="textCtrl" placeholder="Tìm kiếm..." results="0" title="Nhập từ khóa và ấn Enter" id="QuickSearchQuery" /> ..."

Bad value “up” for attribute “rel” on element “a”: The string “up” is not a registered keyword.

Line: 1265 Column: 6 - 84
"...mb"> <a href="https://www.vnseo.edu.vn/forum" class="crumb" rel="up" itemprop="url"><span ..."

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

Line: 1391 Column: 36 - 55
"... iconKey"><div class="sticky"></div>..." Line: 1393 Column: 38 - 54
"... iconKey"><div class="new"></div>..." Line: 1469 Column: 36 - 55
"... iconKey"><div class="sticky"></div>..." Line: 1471 Column: 38 - 54
"... iconKey"><div class="new"></div>..." Line: 1550 Column: 36 - 55
"... iconKey"><div class="sticky"></div>..." Line: 1552 Column: 38 - 54
"... iconKey"><div class="new"></div>..." Line: 1620 Column: 36 - 55
"... iconKey"><div class="sticky"></div>..." Line: 1622 Column: 38 - 54
"... iconKey"><div class="new"></div>..." Line: 1690 Column: 36 - 55
"... iconKey"><div class="sticky"></div>..." Line: 1692 Column: 38 - 54
"... iconKey"><div class="new"></div>..."

Duplicate ID “searchBar”.

Line: 1884 Column: 1 - 44
"...search"> <div id="searchBar" class="hasSearchButton"> <i..."

Duplicate ID “QuickSearchPlaceholder”.

Line: 1886 Column: 2 - 82
"...tton"> <i id="QuickSearchPlaceholder" class="uix_icon uix_icon-search" title="Tìm kiếm"></i> ..."

Duplicate ID “QuickSearch”.

Line: 1887 Column: 2 - 28
"...ếm"></i> <fieldset id="QuickSearch"> <fo..."

Duplicate ID “QuickSearchQuery”.

Line: 1893 Column: 5 - 162
"...></i> <input type="search" name="keywords" value="" class="textCtrl" placeholder="Tìm kiếm..." results="0" title="Nhập từ khóa và ấn Enter" id="QuickSearchQuery" /> ..."

Duplicate ID “search_bar_title_only”.

Line: 1906 Column: 19 - 44
"...li><label><input type="checkbox" name="title_only" value="1" id="search_bar_title_only" class="AutoChecker" data-uncheck="#search_bar_thread" /> Chỉ t..."

Duplicate ID “searchBar_users”.

Line: 1913 Column: 8 - 101
"...d> <input type="text" name="users" value="" class="textCtrl AutoComplete" id="searchBar_users" /> ..."

Duplicate ID “searchBar_date”.

Line: 1920 Column: 11 - 89
"... <dd><input type="date" name="date" value="" class="textCtrl" id="searchBar_date" />..."

Duplicate ID “commonSearches”.

Line: 1932 Column: 7 - 45
".../a> <div class="Popup" id="commonSearches"> ..."

Stray end tag “span”.

Line: 1983 Column: 262 - 268
"...eo.edu.vn.</span></a></..."

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

Line: 2105 Column: 1 - 5
"...</a></li> </li> <li ..."

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

Line: 2129 Column: 1 - 96
".../a></li> <a href="https://thietkewebseo.net/" target="_blank" rel="dofollow" title="thiet ke web gia re">thiet ..."

Stray end tag “div”.

Line: 2281 Column: 2 - 7
"... </div> </div> <s..."

Stray start tag “script”.

Line: 2292 Column: 1 - 8
"...> </html> <script> (fu..."

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

Line: 2292 Column: 1 - 8
"...> </html> <script> (fu..."

Warnings

Attribute with the local name “xmlns:fb” is not serializable as XML 1.0.

The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.

Line: 51 Column: - 13
"...]> ..." Line: 57 Column: - 11
"...ipt> <![endif]--> <link href..."

The document is not mappable to XML 1.0 due to a trailing hyphen in a comment.

Line: 57 Column: - 12
"...pt> <![endif]--> <link href=..."

Attribute “;” is not serializable as XML 1.0.

Line: 382 Column: 3 - 26
"...> <div class="ad_header";> <a h..."

Text run is not in Unicode Normalization Form C.

Line: 885 Column: 102 - 2
".../preview"> Công ty truyền thông Đây Rồi Media đăng tuyển... </a> ..." Line: 2123 Column: 160 - 177
"...m.vn"><em>Lắp Mạng Viettel</em><..." Line: 2123 Column: 196 - 207
"...></strong> Miễn Phí <br />..." Line: 2125 Column: 158 - 175
"...trong><em>Cáp Quang Viettel</em><..."

The “date” input type is not supported in all browsers. Please be sure to test, and consider using a polyfill.

Line: 1214 Column: 11 - 89
"... <dd><input type="date" name="date" value="" class="textCtrl" id="searchBar_date" /></dd> ..." Line: 1920 Column: 11 - 89
"... <dd><input type="date" name="date" value="" class="textCtrl" id="searchBar_date" />..."

The first occurrence of ID “searchBar” was here.

Line: 1178 Column: 1 - 44
"...search"> <div id="searchBar" class="hasSearchButton"> <i..."

The first occurrence of ID “QuickSearchPlaceholder” was here.

Line: 1180 Column: 2 - 82
"...tton"> <i id="QuickSearchPlaceholder" class="uix_icon uix_icon-search" title="Tìm kiếm"></i> ..."

The first occurrence of ID “QuickSearch” was here.

Line: 1181 Column: 2 - 28
"...ếm"></i> <fieldset id="QuickSearch"> <fo..."

The first occurrence of ID “QuickSearchQuery” was here.

The first occurrence of ID “search_bar_title_only” was here.

Line: 1200 Column: 19 - 44
"...li><label><input type="checkbox" name="title_only" value="1" id="search_bar_title_only" class="AutoChecker" data-uncheck="#search_bar_thread" /> Chỉ t..."

The first occurrence of ID “searchBar_users” was here.

Line: 1207 Column: 8 - 101
"...d> <input type="text" name="users" value="" class="textCtrl AutoComplete" id="searchBar_users" /> ..."

The first occurrence of ID “searchBar_date” was here.

Line: 1214 Column: 11 - 89
"... <dd><input type="date" name="date" value="" class="textCtrl" id="searchBar_date" /></dd> ..."

The first occurrence of ID “commonSearches” was here.

Line: 1226 Column: 7 - 45
".../a> <div class="Popup" id="commonSearches"> ..."

The value of attribute “title” on element “a” from namespace “http://www.w3.org/1999/xhtml” is not in Unicode Normalization Form C.

Line: 2123 Column: 89 - 155
"..."><strong><a title="Lắp Mạng Viettel " href="http://lapmangviettel.com.vn"><em>Lă..." Line: 2125 Column: 81 - 145
"...s-serif;"><a title="Cáp Quang Viettel " href="http://capquangviettel.pro"><stron..."

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vnseo.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.

vnseo.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.

VNSEO.EDU.VN Diễn Đàn SEO Việt Nam - Forum SEO vnseo.edu.vn

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vnseo.edu.vn Desktop Speed Test Quick Summary

priority - 70Optimize images

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

Optimize the following images to reduce their size by 685.6KiB (60% reduction).

priority - 16Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 15 blocking script resources and 8 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 10Leverage 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 - 2Prioritize 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 CSS

Compacting CSS code can save many bytes of data and speed up download and parse times.

Minify CSS for the following resources to reduce their size by 9KiB (23% reduction).

priority - 1Reduce server response time

priority - 1Enable 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 5.2KiB (67% reduction).

priority - 0Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.

Minify JavaScript for the following resources to reduce their size by 1.9KiB (30% reduction).

vnseo.edu.vn Desktop Resource Breakdown

vnseo.edu.vn mobile page speed rank

vnseo.edu.vn Mobile Speed Test Quick Summary

priority - 64Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 14 blocking script resources and 8 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 38Optimize images

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

Optimize the following images to reduce their size by 371.7KiB (43% reduction).

priority - 14Leverage 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 - 1Reduce server response time

priority - 1Minify CSS

Compacting CSS code can save many bytes of data and speed up download and parse times.

Minify CSS for the following resources to reduce their size by 9KiB (23% reduction).

priority - 1Enable 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 5.2KiB (67% reduction).

priority - 0Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.

Minify JavaScript for the following resources to reduce their size by 1.9KiB (30% reduction).

vnseo.edu.vn Mobile Resource Breakdown

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vnseo.edu.vn Mobile Usability Test Quick Summary

priority - 3Size 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.

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vnseo.edu.vn HTML validation

Errors

Attribute “xmlns:fb” not allowed here.

A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.

Saw “<!--” within a comment. Probable cause: Nested comment (not allowed).

Bogus comment.

Bad value “//fonts.googleapis.com/css?family=PT+Sans:400,700|Open+Sans:400,700” for attribute “href” on element “link”: Illegal character in query: “|” is not allowed.

Bad value “subMenu” for attribute “rel” on element “a”: The string “subMenu” is not a registered keyword.

No space between attributes.

Attribute “;” not allowed on element “div” at this point.

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

Bad value “Menu” for attribute “rel” on element “a”: The string “Menu” is not a registered keyword.

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

Unclosed element “div”.

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

Bad value “dofollow” for attribute “rel” on element “a”: The string “dofollow” is not a registered keyword.

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

Unclosed element “center”.

Stray end tag “center”.

Element “div” not allowed as child of element “h3” in this context. (Suppressing further errors from this subtree.)