jk51.com: 健康无忧网--专注养生保健，健康问答,让您健康无忧

jk51.com 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.

Domain Name: JK51.COM
Registry Domain ID: 1562246314_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.gname.com
Registrar URL: http://www.gname.com
Updated Date: 2023-11-17T08:45:14Z
Creation Date: 2009-07-13T19:14:40Z
Registry Expiry Date: 2026-07-13T19:14:40Z
Registrar: Gname.com Pte. Ltd.
Registrar IANA ID: 1923
Registrar Abuse Contact Email:
Registrar Abuse Contact Phone:
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: NS1.DNS.COM
Name Server: NS2.DNS.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2024-11-16T09:45:02Z

jk51.com server information

Servers Location

jk51.com desktop page speed rank

Last tested: 2017-05-30

Desktop Speed Medium

70/100

jk51.com Desktop Speed Test Quick Summary

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jk51.com Desktop Resource Breakdown

Total Resources	61
Number of Hosts	11
Static Resources	49
JavaScript Resources	17
CSS Resources	3

jk51.com mobile page speed rank

Last tested: 2017-05-30

Mobile Speed Bad

51/100

jk51.com Mobile Speed Test Quick Summary

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

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jk51.com Mobile Resource Breakdown

Total Resources	64
Number of Hosts	13
Static Resources	49
JavaScript Resources	17
CSS Resources	3

jk51.com mobile page usability

Last tested: 2017-05-30

Mobile Usability Bad

58/100

jk51.com 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.

==> renders only 5 pixels tall (12 CSS pixels).

健康无忧网欢迎您的来访!我们…,疾病的症状,以及治疗方案. renders only 5 pixels tall (12 CSS pixels).

TAG标签 renders only 5 pixels tall (12 CSS pixels).

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priority - 25Size tap targets appropriately

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The tap target <a href="/neike/">内科</a> and 13 others are close to other tap targets.

The tap target <a href="http://jbk.jk51.com/">疾病库</a> is close to 4 other tap targets.

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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://jk51.com/templets/images/bcastr3.swf (280 x 11).

jk51.com HTML validation

Errors

A document must not include more than one “meta” element with a “http-equiv” attribute whose value is “content-type”.

Line: 7 Column: 1 - 65
"...忧</TITLE> <META http-equiv=Content-Type content="text/html; charset=utf-8"> <meta..."

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

Line: 29 Column: 50 - 92
"...k51.com/"><IMG src="/templets/img/logo.jpg" border=0></A></..." Line: 34 Column: 24 - 87
"..."zt_bj_1"><img src="/templets/img/zt_bj1.jpg" border="0" usemap="#Map2" /> <..." Line: 40 Column: 24 - 61
"..."zt_bj_3"><img src="/templets/img/zt_bj3.jpg" /></div>..." Line: 83 Column: 20 - 53
"...ass=s_bj1><IMG src="/templets/img/s130.jpg"></DIV>..."

Stray end tag “div”.

Line: 32 Column: 1 - 6
"...t> </DIV> </DIV> <div ..."

Element “area” is missing required attribute “alt”.

Line: 36 Column: 7 - 55
"...2"> <area shape="rect" coords="3,3,54,29" href="/" /> <..."

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

Line: 39 Column: 458 - 474
"...51.com/' ><font color=blue>疾病库</f..."

Attribute “vlass” not allowed on element “dt” at this point.

Line: 192 Column: 9 - 26
"...> <dt vlass='light'><stron..."

Warnings

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

Line: 29 Column: 50 - 92
"...k51.com/"><IMG src="/templets/img/logo.jpg" border=0></A></..." Line: 34 Column: 24 - 87
"..."zt_bj_1"><img src="/templets/img/zt_bj1.jpg" border="0" usemap="#Map2" /> <..." Line: 211 Column: 92 - 218
"...="_blank"><img src='http://pic.jk51.com/uploads/userup/ea5daff8af589ead.jpg' border='0' width='124' height='94' alt='总是睡不饱？睡觉前，千万别做这４件事'><span ..." Line: 212 Column: 56 - 171
"...="_blank"><img src='http://pic.jk51.com/uploads/userup/233e35409b654fbb.jpg' border='0' width='124' height='94' alt=' 浅谈A型肝炎'><span ..." Line: 213 Column: 67 - 188
"...="_blank"><img src='http://pic.jk51.com/uploads/userup/ea2880fe6076bf34.jpg' border='0' width='124' height='94' alt='注意！喝生化汤反而会排恶露'><span ..." Line: 214 Column: 57 - 180
"...="_blank"><img src='http://pic.jk51.com/uploads/userup/300bec1488476034.jpg' border='0' width='124' height='94' alt='肾细胞癌无征兆　定期检查保健康'><span ..." Line: 215 Column: 55 - 178
"...="_blank"><img src='http://pic.jk51.com/uploads/userup/a4e0f673207b537b.jpg' border='0' width='124' height='94' alt='孕期皮肤问题多　用药安全停看听'><span ..."

The “language” attribute on the “script” element is obsolete. You can safely omit it.

Line: 30 Column: 3 - 53
"...></DIV> <script language="javascript" src="/gg/headad1.js"></scri..." Line: 43 Column: 20 - 71
"...s="ad950"><script language="javascript" src="/gg/topad950.js"></scri..." Line: 144 Column: 1 - 30
"...192px --> <script language='javascript'> linka..." Line: 514 Column: 1 - 85
"...k8></DIV> <SCRIPT language=JavaScript src="/templets/img/jk_links_tab.js" type=text/javascript></SCRI..." Line: 549 Column: 1 - 50
"...y:none;"> <script language="javascript" src="/js/footer.js"></scri..."

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jk51.com TRACEROUTE

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JK51.COM 健康无忧网--专注养生保健，健康问答,让您健康无忧

jk51.com Website Information

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jk51.com desktop page speed rank

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priority - 20Leverage 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 - 16Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 4 blocking script resources and 3 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 3Optimize images

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

Optimize the following images to reduce their size by 31.2KiB (52% reduction).

priority - 3Reduce server response time

priority - 0Minify 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 1.8KiB (12% reduction).

priority - 0Minify 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 1.4KiB (21% reduction).

jk51.com Desktop Resource Breakdown

jk51.com mobile page speed rank

jk51.com Mobile Speed Test Quick Summary

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

Your page has 4 blocking script resources and 3 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

Optimize CSS Delivery of the following:

priority - 30Leverage 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 - 5Reduce server response time

priority - 3Optimize images

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

Optimize the following images to reduce their size by 31.2KiB (52% reduction).

priority - 0Minify 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 1.8KiB (12% reduction).

priority - 0Minify 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 1.4KiB (21% reduction).

jk51.com Mobile Resource Breakdown

jk51.com mobile page usability

jk51.com 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 - 25Size 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.

jk51.com HTML validation

Errors

A document must not include more than one “meta” element with a “http-equiv” attribute whose value is “content-type”.

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

Stray end tag “div”.

Element “area” is missing required attribute “alt”.

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

Attribute “vlass” not allowed on element “dt” at this point.

Warnings

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

The “language” attribute on the “script” element is obsolete. You can safely omit it.

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