21voa.com website information.
21voa.com domain name is registered by .COM top-level domain registry. See the other sites registred in .COM domain zone.
Following name servers are specified for 21voa.com domain:
- dns14.hichina.com
- dns13.hichina.com
and probably website 21voa.com is hosted by FASTLY - Fastly, US web hosting company. Check the complete list of other most popular websites hosted by FASTLY - Fastly, US hosting company.
According to Alexa traffic rank the highest website 21voa.com position was 55718 (in the world). The lowest Alexa rank position was 956928. Now website 21voa.com ranked in Alexa database as number 241176 (in the world).
Website 21voa.com Desktop speed measurement score (89/100) is better than the results of 87.7% of other sites and shows that the page is performing great on desktop computers.
21voa.com Mobile usability score (59/100) is better than the results of 2.69% of other sites and shows that the page mobile usability is poor and can be improved.
Mobile speed measurement score of 21voa.com (79/100) is better than the results of 87.76% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
Weekly Rank Report
| Date | Rank | Change |
|---|---|---|
| Nov-19-2024 | 241,176 | 2,321 |
| Nov-18-2024 | 243,497 | -4,347 |
| Nov-17-2024 | 239,150 | 2,824 |
| Nov-16-2024 | 241,974 | -425 |
| Nov-15-2024 | 241,549 | 289 |
| Nov-14-2024 | 241,838 | -2,853 |
| Nov-13-2024 | 238,985 | 0 |
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21voa.com Rank History
Alexa can identify the popularity of a website as well as its competitors. It is important for website owners and bloggers to know their Alexa ranking because it shows how many visitors have viewed their web page. It gives them a clear idea of how popular their website is on the internet and the ranking of their competitors.
21voa.com whois
WHOIS is a query and response protocol that is widely used for querying databases that store the registered users or assignees of an Internet resource, such as a domain name, an IP address block, or an autonomous system, but is also used for a wider range of other information.
Domain Name: 21VOA.COM
Registry Domain ID: 1276492737_DOMAIN_COM-VRSN
Registrar WHOIS Server: grs-whois.hichina.com
Registrar URL: http://wanwang.aliyun.com
Updated Date: 2022-05-17T04:39:51Z
Creation Date: 2007-10-15T05:00:26Z
Registry Expiry Date: 2024-10-15T05:00:26Z
Registrar: Alibaba Cloud Computing Ltd. d/b/a HiChina (www.net.cn)
Registrar IANA ID: 1599
Registrar Abuse Contact Email: DomainAbuse@service.aliyun.com
Registrar Abuse Contact Phone: +86.95187
Domain Status: ok https://icann.org/epp#ok
Name Server: DNS29.HICHINA.COM
Name Server: DNS30.HICHINA.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2022-07-12T11:31:52Z
21voa.com server information
21voa.com desktop page speed rank
Last tested: 2015-12-11
21voa.com Desktop Speed Test Quick Summary
priority - 5 Leverage 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.21voa.com/images/21voa.gif (expiration not specified)
http://www.21voa.com/images/21voa_130523.css (expiration not specified)
http://www.21voa.com/images/arrow.gif (expiration not specified)
http://www.21voa.com/images/buld.gif (expiration not specified)
http://www.21voa.com/images/new.gif (expiration not specified)
http://c.cnzz.com/core.php?web_id=3965320&t=z (15 minutes)
http://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js (60 minutes)
https://pagead2.googlesyndication.com/pagead/osd.js (60 minutes)
http://s14.cnzz.com/stat.php?id=3965320&web_id=3965320 (90 minutes)
priority - 4 Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 1 blocking script resources and 1 blocking CSS resources. This causes a delay in rendering your page.
None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.
Remove render-blocking JavaScript:
Optimize CSS Delivery of the following:
priority - 1 Enable 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 6.4KiB (65% reduction).
priority - 0 Minify 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 1.2KiB (1% reduction).
Minifying https://pagead2.googlesyndication.com/pagead/js/r2…208/expansion_embed.js could save 532B (2% reduction) after compression.
21voa.com Desktop Resources
| Total Resources | 31 |
| Number of Hosts | 10 |
| Static Resources | 20 |
| JavaScript Resources | 11 |
| CSS Resources | 2 |
21voa.com Desktop Resource Breakdown
21voa.com mobile page speed rank
Last tested: 2017-06-02
21voa.com Mobile Speed Test Quick Summary
priority - 16 Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 1 blocking script resources and 1 blocking CSS resources. This causes a delay in rendering your page.
None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.
Remove render-blocking JavaScript:
Optimize CSS Delivery of the following:
priority - 7 Leverage 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.21voa.com/images/21voa.gif (expiration not specified)
http://www.21voa.com/images/21voa_130523.css (expiration not specified)
http://www.21voa.com/images/arrow.gif (expiration not specified)
http://www.21voa.com/images/buld.gif (expiration not specified)
http://www.21voa.com/images/new.gif (expiration not specified)
http://c.cnzz.com/core.php?web_id=3965320&t=z (15 minutes)
http://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js (60 minutes)
https://pagead2.googlesyndication.com/pagead/osd.js (60 minutes)
http://s14.cnzz.com/stat.php?id=3965320&web_id=3965320 (90 minutes)
priority - 1 Enable 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 7KiB (65% reduction).
21voa.com Mobile Resources
| Total Resources | 34 |
| Number of Hosts | 13 |
| Static Resources | 21 |
| JavaScript Resources | 11 |
| CSS Resources | 2 |
21voa.com Mobile Resource Breakdown
21voa.com mobile page usability
Last tested: 2017-06-02
21voa.com Mobile Usability Test Quick Summary
priority - 39 Use 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.
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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="/">慢速英语网 VOA在线收听，VOA慢速英语听力下载</a> is close to 1 other tap targets.<a href="http://www.51v…ndard_English/">VOA常速英语</a> is close to 4 other tap targets.<a href="http://www.51v…tandard_1.html">VOA常速英语最新(2012-2016)</a> and 38 others are close to other tap targets.<a href="/VOA_Special_E…sts-15775.html">Brazil Faces P…cting Tourists</a> and 46 others are close to other tap targets.<a href="/as_it_is_1.html">[ AS IT IS ]</a> and 36 others are close to other tap targets.<a href="/aclk?sa=l&ai=…ms%253D9032152" class="rhtitle rhdefaultcolored">PayPal</a> is close to 2 other tap targets.<span class="rhprice rhdefaultcolored">免费</span> is close to 3 other tap targets.<span class="rhpromotext rhdefaultcolored">Pay friends back fast.</span> is close to 1 other tap targets.<span class="rhbody rhdefaultcolored">Get the PayPal…Is New Money.</span> is close to 1 other tap targets.<div id="abgc" class="abgc">Google提供的广告</div> is close to 2 other tap targets.<a href="http://www.21voa.com">21VOA.Com</a> and 1 others are close to other tap targets.priority - 10 Configure 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.
Configure a viewport for this page.
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21voa.com Ping
Ping is a networking utility tool to test if a particular host is reachable. It is a diagnostic that checks reachability of a host on an Internet Protocol (IP) network. In a computer network, a ping test is a way of sending messages from one host to another. Aside from checking if the host is connected to a network, ping also gives indicators of the reliability and general speed of the connection.
21voa.com TRACEROUTE
Traceroute is a network diagnostic tool used to track the pathway taken by a packet on an IP network from source to destination. Traceroute also records the time taken for each hop the packet makes during its route to the destination. Traceroute uses ICMP (Internet Control Message Protocol) echo packets with variable time to live values. The response time of each hop is calculated. To guarantee accuracy, each hop is queried multiple times (usually three times) to better measure the response of that particular hop.