bt.cn Website Information
Daily Unique Visits: 186,634
Daily Page Views: 1,493,072
Income Per Day: $1,493
Estimated Value: $1,612,440
This website is located in China and is using following IP address 119.188.210.21. See the complete list of popular websites hosted in China.
bt.cn is registered under .CN top-level domain. Please check other sites in .CN zone.
Website bt.cn is using the following name servers:
- v1.dns.com
- v2.dns.com
and is probably hosted by CT-DONGGUAN-IDC CHINANET Guangdong province network, CN. See the full list of other websites hosted by CT-DONGGUAN-IDC CHINANET Guangdong province network, CN.
The highest website bt.cn position in Alexa rank database was 2001 and the lowest rank position was 968531. Current position of bt.cn in Alexa rank database is 8165.
Desktop speed score of bt.cn (70/100) is better than the results of 50.91% of other sites and shows that the page desktop performance can be improved.
Mobile usability score of bt.cn (73/100) is better than the results of 22.71% of other sites and means that the page is not mobile-friendly.
Mobile speed score of bt.cn (60/100) is better than the results of 54.7% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
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bt.cn 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.
bt.cn 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.
ROID: 20030310s10001s00013096-cn
Domain Status: clientTransferProhibited
Registrant: 广东堡塔安全技术有限公司
Registrant Contact Email: 712923939@qq.com
Sponsoring Registrar: 厦门易名科技股份有限公司
Name Server: vip3.alidns.com
Name Server: vip4.alidns.com
Registration Time: 2014-01-22 16:00:00
Expiration Time: 2023-01-22 16:03:40
DNSSEC: unsigned
bt.cn server information
Servers Location
bt.cn desktop page speed rank
Last tested: 2017-05-26
bt.cn Desktop Speed Test Quick Summary
priority - 18Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 177.5KiB (50% reduction).
Compressing https://www.bt.cn/Public/images/logo.png could save 48.2KiB (88% reduction).
Compressing https://www.bt.cn/Public/images/yc.png could save 47.7KiB (90% reduction).
Compressing http://www.bt.cn/Public/images/windows_pc.png could save 16.7KiB (18% reduction).
Compressing https://www.bt.cn/Public/images/windows_pc.png could save 16.7KiB (18% reduction).
priority - 10Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 4 blocking script resources and 6 blocking CSS resources. This causes a delay in rendering your page.
Remove render-blocking JavaScript:
http://www.bt.cn/Public/js/tongji.js
https://www.bt.cn/Public/js/jquery.js
https://www.bt.cn/Public/js/tongji.js
Optimize CSS Delivery of the following:
http://www.bt.cn/Public/css/bt/common.css
http://www.bt.cn/Public/css/bt/css.css
https://www.bt.cn/Public/css/bt/reset.css
https://www.bt.cn/Public/css/bt/common.css
https://www.bt.cn/Public/css/bt/css.css
priority - 9Minify 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 84.6KiB (50% reduction).
Minifying https://www.bt.cn/Public/js/jquery.js could save 41.7KiB (50% reduction) after compression.
Minifying http://www.bt.cn/Public/js/reg.js could save 590B (20% reduction) after compression.
Minifying https://www.bt.cn/Public/js/reg.js could save 590B (20% reduction) after compression.
priority - 6Leverage 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:
http://www.bt.cn/Public/css/bt/css.css (12 hours)
http://www.bt.cn/Public/css/bt/reset.css (12 hours)
http://www.bt.cn/Public/js/jquery.js (12 hours)
http://www.bt.cn/Public/js/reg.js (12 hours)
http://www.bt.cn/Public/js/tongji.js (12 hours)
https://www.bt.cn/Public/css/bt/common.css (12 hours)
https://www.bt.cn/Public/css/bt/css.css (12 hours)
https://www.bt.cn/Public/css/bt/reset.css (12 hours)
https://www.bt.cn/Public/js/jquery.js (12 hours)
https://www.bt.cn/Public/js/reg.js (12 hours)
https://www.bt.cn/Public/js/tongji.js (12 hours)
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 (19% reduction).
Minifying https://www.bt.cn/Public/css/bt/css.css could save 729B (19% reduction) after compression.
bt.cn Desktop Resource Breakdown
| Total Resources | 32 |
| Number of Hosts | 3 |
| Static Resources | 26 |
| JavaScript Resources | 7 |
| CSS Resources | 6 |
bt.cn mobile page speed rank
Last tested: 2017-05-26
bt.cn Mobile Speed Test Quick Summary
priority - 40Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 4 blocking script resources and 6 blocking CSS resources. This causes a delay in rendering your page.
Remove render-blocking JavaScript:
http://www.bt.cn/Public/js/tongji.js
https://www.bt.cn/Public/js/jquery.js
https://www.bt.cn/Public/js/tongji.js
Optimize CSS Delivery of the following:
http://www.bt.cn/Public/css/bt/common.css
http://www.bt.cn/Public/css/bt/css.css
https://www.bt.cn/Public/css/bt/reset.css
https://www.bt.cn/Public/css/bt/common.css
https://www.bt.cn/Public/css/bt/css.css
priority - 13Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 129.3KiB (44% reduction).
Compressing https://www.bt.cn/Public/images/yc.png could save 47.7KiB (90% reduction).
Compressing http://www.bt.cn/Public/images/windows_pc.png could save 16.7KiB (18% reduction).
Compressing https://www.bt.cn/Public/images/windows_pc.png could save 16.7KiB (18% reduction).
priority - 9Minify 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 84.6KiB (50% reduction).
Minifying https://www.bt.cn/Public/js/jquery.js could save 41.7KiB (50% reduction) after compression.
Minifying http://www.bt.cn/Public/js/reg.js could save 590B (20% reduction) after compression.
Minifying https://www.bt.cn/Public/js/reg.js could save 590B (20% reduction) after compression.
priority - 8Leverage 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:
http://www.bt.cn/Public/css/bt/css.css (12 hours)
http://www.bt.cn/Public/css/bt/reset.css (12 hours)
http://www.bt.cn/Public/js/jquery.js (12 hours)
http://www.bt.cn/Public/js/reg.js (12 hours)
http://www.bt.cn/Public/js/tongji.js (12 hours)
https://www.bt.cn/Public/css/bt/common.css (12 hours)
https://www.bt.cn/Public/css/bt/css.css (12 hours)
https://www.bt.cn/Public/css/bt/reset.css (12 hours)
https://www.bt.cn/Public/js/jquery.js (12 hours)
https://www.bt.cn/Public/js/reg.js (12 hours)
https://www.bt.cn/Public/js/tongji.js (12 hours)
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 (19% reduction).
Minifying https://www.bt.cn/Public/css/bt/css.css could save 729B (19% reduction) after compression.
bt.cn Mobile Resource Breakdown
| Total Resources | 32 |
| Number of Hosts | 3 |
| Static Resources | 25 |
| JavaScript Resources | 7 |
| CSS Resources | 6 |
bt.cn mobile page usability
Last tested: 2017-05-26
bt.cn Mobile Usability Test Quick Summary
priority - 18Use 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.
东莞市百塔网络科技有限公司 renders only 5 pixels tall (12 CSS pixels).产品信息 and 2 others render only 5 pixels tall (12 CSS pixels).首页 renders only 5 pixels tall (14 CSS pixels).Windows面板 and 5 others render only 5 pixels tall (14 CSS pixels).永久免费 renders only 5 pixels tall (12 CSS pixels).Linux 版 renders only 6 pixels tall (16 CSS pixels).Windows 版 renders only 6 pixels tall (16 CSS pixels).2017/05/24·每周三更新 and 1 others render only 5 pixels tall (14 CSS pixels).| and 1 others render only 5 pixels tall (14 CSS pixels).立即安装 renders only 5 pixels tall (14 CSS pixels).一键创建网站、FTP、数据库…切换；自带LNMP与LAMP and 1 others render only 5 pixels tall (14 CSS pixels).远程桌面连接工具 and 2 others render only 8 pixels tall (20 CSS pixels).下载 and 2 others render only 5 pixels tall (14 CSS pixels).软件使用文档 and 2 others render only 6 pixels tall (16 CSS pixels).宝塔linux面板3.0正式开启公测，正式版将于3月份发布 and 10 others render only 5 pixels tall (12 CSS pixels).友情链接： renders only 5 pixels tall (12 CSS pixels).云锁-服务器安全 and 10 others render only 5 pixels tall (12 CSS pixels).|让你更简单的使用服务器(w…粤ICP备17030143号 and 3 others render only 5 pixels tall (13 CSS pixels).隐私声明 renders only 5 pixels tall (13 CSS pixels).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 - 4Size content to viewport
The page content is too wide for the viewport, forcing the user to scroll horizontally. Size the page content to the viewport to provide a better user experience.
The page content is 1,040 CSS pixels wide, but the viewport is only 980 CSS pixels wide. The following elements fall outside the viewport:
<a href="/contact.html">联系我们</a> falls outside the viewport.The element
<a href="/bbs/portal.php">论坛</a> falls outside the viewport.The element
<div class="downBtn">Linux 版 Windows 版</div> falls outside the viewport.The element
<div class="downInfo">4.3版|2017/05/24·每周三更新|立即安装</div> falls outside the viewport.The element
<div class="softtxt">Linux版请确保纯净系统安…切换；自带LNMP与LAMP</div> falls outside the viewport.The element
<div class="zunad">尊云9元福利云，预装宝塔面板…高能用45天，宝塔极力推荐！</div> falls outside the viewport.The element
<h3 class="p1">每周三更新</h3> falls outside the viewport.The element
<p>查看</p> falls outside the viewport.The element
<h2>开发心得</h2> falls outside the viewport.The element
<li>用宝塔Linux版搭建高性能流媒体服务器</li> falls outside the viewport.The element
<li>如何查看哪个网站被攻击</li> falls outside the viewport.The element
<li>用心研发一款服务器流量监控软件</li> falls outside the viewport.The element
<div class="flink">友情链接： 云服务器…模型 云锁-服务器安全</div> falls outside the viewport.priority - 4Size 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.
<a href="/about.html#job" class="pp-job"> is close to 1 other tap targets.<a href="/bbs/thread-1186-1-1.html" class="download">立即安装</a> is close to 1 other tap targets.<a href="/update/net/BtMstsc.exe">下载</a> and 1 others are close to other tap targets.<a href="/Help/Find?id=134">宝塔linux面板3.0正式开启公测，正式版将于3月份发布</a> and 10 others are close to other tap targets.<a href="http://www.wcloud.com">云主机</a> and 1 others are close to other tap targets.bt.cn HTML validation
Errors
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
"...s="linux"><img src="/Public/images/linux_pc.png"></div>..." Line: 68 Column: 44 - 85
"...lay:none"><img src="/Public/images/windows_web.png"><div c..." Line: 68 Column: 109 - 164
"...Soft-min"><img src="/Public/images/windows-soft.png" width="100%"></div>..." Line: 116 Column: 4 - 41
"...nter"> <img src="Public/images/yunwei.png" /> <d..."
Bad value “100%” for attribute “width” on element “img”: Expected a digit but saw “%” instead.
"...Soft-min"><img src="/Public/images/windows-soft.png" width="100%"></div>..."
Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)
"...:130px"> <style type="text/css"> .ro..."
Attribute “itle” not allowed on element “a” at this point.
"...2014-2017 <a href="https://www.bt.cn" itle="宝塔面板">宝塔面板</..."
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bt.cn 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.
bt.cn 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.