a.co website information.
a.co domain name is registered by .CO top-level domain registry. See the other sites registred in .CO domain zone.
Following name servers are specified for a.co domain:
- pdns6.ultradns.co.uk
- pdns1.ultradns.net
- pdns4.ultradns.org
- pdns5.ultradns.info
- pdns2.ultradns.net
- pdns3.ultradns.org
and probably website a.co is hosted by WIKIMEDIA - Wikimedia Foundation Inc., US web hosting company. Check the complete list of other most popular websites hosted by WIKIMEDIA - Wikimedia Foundation Inc., US hosting company.
According to Alexa traffic rank the highest website a.co position was 2038 (in the world). The lowest Alexa rank position was 999698. Now website a.co ranked in Alexa database as number 2038 (in the world).
Website a.co Desktop speed measurement score (71/100) is better than the results of 52.66% of other sites shows that the page desktop performance can be improved.
a.co Mobile usability score (100/100) is better than the results of 100% of other sites and means that the page is mobile-friendly.
Mobile speed measurement score of a.co (56/100) is better than the results of 45.93% 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 |
|---|---|---|
| May-04-2024 | 2,038 | 2 |
| May-03-2024 | 2,040 | 3 |
| May-02-2024 | 2,043 | -3 |
| May-01-2024 | 2,040 | 14 |
| Apr-30-2024 | 2,054 | -2 |
| Apr-29-2024 | 2,052 | 6 |
| Apr-28-2024 | 2,058 | -10 |
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a.co 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.
a.co 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: a.co
Registry Domain ID: D740206-CO
Registrar WHOIS Server: whois.markmonitor.com
Registrar URL: www.markmonitor.com
Updated Date: 2019-05-12T20:13:42Z
Creation Date: 2010-04-26T07:50:34Z
Registry Expiry Date: 2024-04-25T23:59:59Z
Registrar: MarkMonitor, Inc.
Registrar IANA ID: 292
Registrar Abuse Contact Email: abusecomplaints@markmonitor.com
Registrar Abuse Contact Phone: +1.2083895740
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: serverDeleteProhibited https://icann.org/epp#serverDeleteProhibited
Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Domain Status: serverTransferProhibited https://icann.org/epp#serverTransferProhibited
Domain Status: serverUpdateProhibited https://icann.org/epp#serverUpdateProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization: Amazon Technologies, Inc.
Registrant Street: REDACTED FOR PRIVACY
Registrant Street: REDACTED FOR PRIVACY
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province: NV
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 Street: 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 Street: 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: pdns4.ultradns.org
Name Server: pdns5.ultradns.info
Name Server: pdns1.ultradns.net
Name Server: pdns6.ultradns.co.uk
Name Server: pdns3.ultradns.org
Name Server: pdns2.ultradns.net
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2022-04-20T12:03:44Z
a.co server information
Servers Location
| IP Address |
|---|
| 54.239.16.179 |
| 54.239.21.27 |
| 54.239.20.248 |
a.co desktop page speed rank
Last tested: 2019-10-11
a.co Desktop Speed Test Quick Summary
priority - 13 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:
https://fls-na.amazon.com/1/batch/1/OP/ATVPDKIKX0D…RHPJV4%26aftb%3D1:1421 (expiration not specified)
https://fls-na.amazon.com/1/batch/1/OP/ATVPDKIKX0D…RHPJV4%26aftb%3D1:1428 (expiration not specified)
https://fls-na.amazon.com/1/batch/1/OP/ATVPDKIKX0D…RHPJV4%26aftb%3D1:1442 (expiration not specified)
https://fls-na.amazon.com/1/batch/1/OP/ATVPDKIKX0D…RHPJV4%26aftb%3D1:1449 (expiration not specified)
https://fls-na.amazon.com/1/batch/1/OP/ATVPDKIKX0D…RHPJV4%26aftb%3D1:1539 (expiration not specified)
https://fls-na.amazon.com/1/batch/1/OP/ATVPDKIKX0D…RHPJV4%26aftb%3D1:1546 (expiration not specified)
https://fls-na.amazon.com/1/batch/1/OP/ATVPDKIKX0D…RHPJV4%26aftb%3D1:1560 (expiration not specified)
https://fls-na.amazon.com/1/batch/1/OP/ATVPDKIKX0D…RHPJV4%26aftb%3D1:1567 (expiration not specified)
https://fls-na.amazon.com/1/batch/1/OP/ATVPDKIKX0D…RHPJV4%26aftb%3D1:1581 (expiration not specified)
https://fls-na.amazon.com/1/batch/1/OP/ATVPDKIKX0D…RHPJV4%26aftb%3D1:1588 (expiration not specified)
https://fls-na.amazon.com/1/batch/1/OP/ATVPDKIKX0D…RHPJV4%26aftb%3D1:1669 (expiration not specified)
https://fls-na.amazon.com/1/batch/1/OP/ATVPDKIKX0D…RHPJV4%26aftb%3D1:1676 (expiration not specified)
https://fls-na.amazon.com/1/batch/1/OP/ATVPDKIKX0D…RHPJV4%26aftb%3D1:1691 (expiration not specified)
https://fls-na.amazon.com/1/batch/1/OP/ATVPDKIKX0D…RHPJV4%26aftb%3D1:1698 (expiration not specified)
https://fls-na.amazon.com/1/batch/1/OP/ATVPDKIKX0D…RHPJV4%26aftb%3D1:1404 (expiration not specified)
https://fls-na.amazon.com/1/batch/1/OP/ATVPDKIKX0D…7RHPJV4%26aftb%3D1:527 (expiration not specified)
https://fls-na.amazon.com/1/batch/1/OP/ATVPDKIKX0D…RHPJV4%26aftb%3D1:1087 (expiration not specified)
https://fls-na.amazon.com/1/batch/1/OP/ATVPDKIKX0D…RHPJV4%26aftb%3D1:1079 (expiration not specified)
https://fls-na.amazon.com/1/batch/1/OP/ATVPDKIKX0D…RHPJV4%26aftb%3D1:2781 (expiration not specified)
https://fls-na.amazon.com/1/batch/1/OP/ATVPDKIKX0D…7RHPJV4%26aftb%3D1:564 (expiration not specified)
https://fls-na.amazon.com/1/batch/1/OP/ATVPDKIKX0D…7RHPJV4%26aftb%3D1:560 (expiration not specified)
https://fls-na.amazon.com/1/batch/1/OP/ATVPDKIKX0D…7RHPJV4%26aftb%3D1:595 (expiration not specified)
https://fls-na.amazon.com/1/batch/1/OP/ATVPDKIKX0D…67811185%26ctb%3D1:474 (expiration not specified)
https://fls-na.amazon.com/1/batch/1/OP/ATVPDKIKX0D…7RHPJV4%26aftb%3D1:473 (expiration not specified)
https://fls-na.amazon.com/1/batch/1/OP/ATVPDKIKX0D…7T2BVGWPVZ2FV7RHPJV4:0 (expiration not specified)
priority - 11 Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 107.2KiB (46% reduction).
Compressing and resizing https://images-na.ssl-images-amazon.com/images/I/518yukpyVVL._AC_SY200_.jpg could save 20.5KiB (79% reduction).
Compressing https://images-na.ssl-images-amazon.com/images/G/0…SY260_CB452674879_.jpg could save 7.7KiB (35% reduction).
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Compressing https://images-na.ssl-images-amazon.com/images/G/0…SY260_CB451011607_.jpg could save 3.3KiB (17% reduction).
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Compressing https://m.media-amazon.com/images/G/01/AUIClients/…0b8c7e7771499._V2_.png could save 2.2KiB (39% reduction).
Compressing https://images-na.ssl-images-amazon.com/images/G/0…_SY85_CB452183703_.jpg could save 1.6KiB (40% reduction).
Compressing https://images-na.ssl-images-amazon.com/images/G/0…_SY85_CB452183702_.jpg could save 654B (17% reduction).
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priority - 10 Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 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.
Optimize CSS Delivery of the following:
priority - 7 Avoid landing page redirects
Your page has 2 redirects. Redirects introduce additional delays before the page can be loaded.
Avoid landing page redirects for the following chain of redirected URLs.
http://www.amazon.com/
https://www.amazon.com/
a.co Desktop Resources
| Total Resources | 245 |
| Number of Hosts | 36 |
| Static Resources | 200 |
| JavaScript Resources | 12 |
| CSS Resources | 4 |
a.co Desktop Resource Breakdown
a.co mobile page speed rank
Last tested: 2017-05-18
a.co Mobile Speed Test Quick Summary
priority - 40 Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 3 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.
Optimize CSS Delivery of the following:
https://images-na.ssl-images-amazon.com/images/I/5…ss?AUIClients/AmazonUI
https://images-na.ssl-images-amazon.com/images/I/3…UIClients/GWMWebAssets
priority - 26 Avoid landing page redirects
Your page has 2 redirects. Redirects introduce additional delays before the page can be loaded.
Avoid landing page redirects for the following chain of redirected URLs.
http://www.amazon.com/
https://www.amazon.com/
priority - 9 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:
https://fls-na.amazon.com/1/batch/1/OP/ATVPDKIKX0D…08267649%26ctb%3D1:104 (expiration not specified)
https://fls-na.amazon.com/1/batch/1/OP/ATVPDKIKX0D…S14KH2R%26aftb%3D1:139 (expiration not specified)
https://fls-na.amazon.com/1/batch/1/OP/ATVPDKIKX0D…S14KH2R%26aftb%3D1:115 (expiration not specified)
https://fls-na.amazon.com/1/batch/1/OP/ATVPDKIKX0D…S14KH2R%26aftb%3D1:123 (expiration not specified)
https://fls-na.amazon.com/1/batch/1/OP/ATVPDKIKX0D…S14KH2R%26aftb%3D1:131 (expiration not specified)
https://fls-na.amazon.com/1/batch/1/OP/ATVPDKIKX0D…S14KH2R%26aftb%3D1:589 (expiration not specified)
https://fls-na.amazon.com/1/batch/1/OP/ATVPDKIKX0D…14KH2R%26aftb%3D1:1381 (expiration not specified)
https://fls-na.amazon.com/1/batch/1/OP/ATVPDKIKX0D…S14KH2R%26aftb%3D1:108 (expiration not specified)
https://fls-na.amazon.com/1/batch/1/OP/ATVPDKIKX0D…S14KH2R%26aftb%3D1:151 (expiration not specified)
https://fls-na.amazon.com/1/batch/1/OP/ATVPDKIKX0D…ec%26pti%3Dmobile:1000 (expiration not specified)
https://unagi-na.amazon.com/1/events/com.amazon.csm.nexusclient.prod (expiration not specified)
priority - 8 Prioritize 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.
a.co Mobile Resources
| Total Resources | 108 |
| Number of Hosts | 29 |
| Static Resources | 46 |
| JavaScript Resources | 11 |
| CSS Resources | 6 |
a.co Mobile Resource Breakdown
a.co mobile page usability
Last tested: 2017-05-18
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a.co 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.
a.co 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.