loj.ac Website Information
Daily Unique Visits: 1,330
Daily Page Views: 2,660
Income Per Day: $8
Estimated Value: $1,920
loj.ac is registered under .AC top-level domain. Please check other sites in .AC zone.
No name server records were found.
and is probably hosted by CLOUDFLARENET - Cloudflare, Inc., US. See the full list of other websites hosted by CLOUDFLARENET - Cloudflare, Inc., US.
The highest website loj.ac position in Alexa rank database was 10727 and the lowest rank position was 997081. Current position of loj.ac in Alexa rank database is 539292.
Desktop speed score of loj.ac (87/100) is better than the results of 84.39% of other sites and shows that the page is performing great on desktop computers.
Mobile usability score of loj.ac (64/100) is better than the results of 11.2% of other sites and means that the page is not mobile-friendly.
Mobile speed score of loj.ac (67/100) is better than the results of 70.58% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
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loj.ac 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.
loj.ac 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.
Registry Domain ID: de58ac7719244e1391a05faa733298d3-DONUTS
Registrar WHOIS Server: whois.porkbun.com
Registrar URL: http://porkbun.com
Updated Date: 2023-05-30T07:05:41Z
Creation Date: 2017-04-15T07:04:49Z
Registry Expiry Date: 2024-04-15T07:04:49Z
Registrar: Porkbun LLC
Registrar IANA ID: 1861
Registrar Abuse Contact Email: abuse@porkbun.com
Registrar Abuse Contact Phone: +1.5038508351
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization: Private by Design, LLC
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province: NC
Registrant Postal Code: REDACTED FOR PRIVACY
Registrant Country: US
Registrant Phone: REDACTED FOR PRIVACY
Registrant Phone Ext: REDACTED FOR PRIVACY
Registrant Fax: REDACTED FOR PRIVACY
Registrant Fax Ext: REDACTED FOR PRIVACY
Registrant Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Admin ID: REDACTED FOR PRIVACY
Admin Name: REDACTED FOR PRIVACY
Admin Organization: REDACTED FOR PRIVACY
Admin Street: REDACTED FOR PRIVACY
Admin City: REDACTED FOR PRIVACY
Admin State/Province: REDACTED FOR PRIVACY
Admin Postal Code: REDACTED FOR PRIVACY
Admin Country: REDACTED FOR PRIVACY
Admin Phone: REDACTED FOR PRIVACY
Admin Phone Ext: REDACTED FOR PRIVACY
Admin Fax: REDACTED FOR PRIVACY
Admin Fax Ext: REDACTED FOR PRIVACY
Admin Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Tech ID: REDACTED FOR PRIVACY
Tech Name: REDACTED FOR PRIVACY
Tech Organization: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
Tech City: REDACTED FOR PRIVACY
Tech State/Province: REDACTED FOR PRIVACY
Tech Postal Code: REDACTED FOR PRIVACY
Tech Country: REDACTED FOR PRIVACY
Tech Phone: REDACTED FOR PRIVACY
Tech Phone Ext: REDACTED FOR PRIVACY
Tech Fax: REDACTED FOR PRIVACY
Tech Fax Ext: REDACTED FOR PRIVACY
Tech Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Name Server: ns1.alidns.com
Name Server: ns2.alidns.com
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2023-11-07T23:24:05Z
loj.ac server information
Servers Location
loj.ac desktop page speed rank
Last tested: 2017-12-04
loj.ac Desktop Speed Test Quick Summary
priority - 12Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 1 blocking script resources and 6 blocking CSS resources. This causes a delay in rendering your page.
Remove render-blocking JavaScript:
Optimize CSS Delivery of the following:
https://dn-menci.qbox.me/libreoj/tomorrow.css
https://dn-menci.qbox.me/libreoj/mathjax.css
https://dn-menci.qbox.me/libreoj/libs/KaTeX/katex.min.css
https://dn-menci.qbox.me/libreoj/libs/morris.js/morris.css
https://dn-menci.qbox.me/libreoj/style.css
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 5.7KiB (67% reduction).
Compressing https://loj.ac/script.js?20170710 could save 693B (54% reduction).
priority - 0Leverage 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:
loj.ac Desktop Resource Breakdown
| Total Resources | 19 |
| Number of Hosts | 4 |
| Static Resources | 14 |
| JavaScript Resources | 5 |
| CSS Resources | 6 |
loj.ac mobile page speed rank
Last tested: 2017-12-04
loj.ac Mobile Speed Test Quick Summary
priority - 48Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 1 blocking script resources and 6 blocking CSS resources. This causes a delay in rendering your page.
Remove render-blocking JavaScript:
Optimize CSS Delivery of the following:
https://dn-menci.qbox.me/libreoj/tomorrow.css
https://dn-menci.qbox.me/libreoj/mathjax.css
https://dn-menci.qbox.me/libreoj/libs/KaTeX/katex.min.css
https://dn-menci.qbox.me/libreoj/libs/morris.js/morris.css
https://dn-menci.qbox.me/libreoj/style.css
priority - 1Leverage 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 - 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 5.7KiB (67% reduction).
Compressing https://loj.ac/script.js?20170710 could save 693B (54% reduction).
loj.ac Mobile Resource Breakdown
| Total Resources | 17 |
| Number of Hosts | 4 |
| Static Resources | 12 |
| JavaScript Resources | 5 |
| CSS Resources | 4 |
loj.ac mobile page usability
Last tested: 2017-12-04
loj.ac 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.
首页 renders only 5 pixels tall (14 CSS pixels).题库 and 5 others render only 5 pixels tall (14 CSS pixels).登录 renders only 5 pixels tall (14 CSS pixels).注册 renders only 5 pixels tall (14 CSS pixels).一言（ヒトコト） and 1 others render only 6 pixels tall (15 CSS pixels).标题 renders only 5 pixels tall (14 CSS pixels).时间 renders only 5 pixels tall (14 CSS pixels).感性理解 LibreOJ 测…度（2017年10月及之后） and 6 others render only 5 pixels tall (14 CSS pixels).2017-10-08 renders only 5 pixels tall (14 CSS pixels).2017-10-08 and 5 others render only 5 pixels tall (14 CSS pixels).搜索题目 and 3 others render only 6 pixels tall (15 CSS pixels).比赛名称 and 1 others render only 5 pixels tall (14 CSS pixels).用户名 renders only 5 pixels tall (14 CSS pixels).个性签名 and 1 others render only 5 pixels tall (14 CSS pixels).1 renders only 5 pixels tall (14 CSS pixels).LibreOJ NOIP R…d by Wannafly) and 16 others render only 5 pixels tall (14 CSS pixels).10 and 8 others render only 5 pixels tall (14 CSS pixels).好了 接下来就让你们见识一下程序员的本事 and 3 others render only 5 pixels tall (14 CSS pixels).——骑士与魔法 renders only 5 pixels tall (13 CSS pixels).已结束 and 4 others render only 3 pixels tall (9 CSS pixels).2017-11-05 8:30:00 renders only 5 pixels tall (14 CSS pixels).2017-11-03 16:50:00 and 3 others render only 5 pixels tall (14 CSS pixels).LibreOJ Powered by and 1 others render only 5 pixels tall (14 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 - 8Size 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="/article/167">请未公开题目的出题人重新上传数据</a> and 6 others are close to other tap targets.<a href="/user/1017">cz_xuyixuan</a> and 13 others are close to other tap targets.<a href="/contest/13">LibreOJ NOIP R…Wannafly) 已结束</a> and 3 others are close to other tap targets.loj.ac 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.
"... href="/"><img src="https://libreoj.qiniu.tyhzyz.cn/logo.svg?20170614" style="width: 90px; height: 30px; "></a> <..."
Element “div” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)
"...i header"><div class="ui mini grey label">已结束</d..." Line: 726 Column: 108 - 139
"...i header"><div class="ui mini grey label">已结束</d..." Line: 734 Column: 89 - 120
"...i header"><div class="ui mini grey label">已结束</d..." Line: 742 Column: 88 - 119
"...i header"><div class="ui mini grey label">已结束</d..." Line: 750 Column: 88 - 119
"...i header"><div class="ui mini grey label">已结束</d..."
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loj.ac 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.
loj.ac 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.