THEORYOFCOMPUTING.ORG Website Information

theoryofcomputing.org Website Information

Daily Unique Visits: 1,297

Daily Page Views: 2,594

Income Per Day: $8

Estimated Value: $1,920

theoryofcomputing.org is registered under .ORG top-level domain. Please check other sites in .ORG zone.

No name server records were found.

and is probably hosted by U-CHICAGO-AS - University of Chicago, US. See the full list of other websites hosted by U-CHICAGO-AS - University of Chicago, US.

The highest website theoryofcomputing.org position in Alexa rank database was 35075 and the lowest rank position was 991113. Current position of theoryofcomputing.org in Alexa rank database is 552900.

Desktop speed score of theoryofcomputing.org (92/100) is better than the results of 90.97% of other sites and shows that the page is performing great on desktop computers.

Mobile usability score of theoryofcomputing.org (92/100) is better than the results of 33.5% of other sites and means that the page is mobile-friendly.

Mobile speed score of theoryofcomputing.org (88/100) is better than the results of 91.94% of other sites and shows that the landing page performance on mobile devices is excellent.

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theoryofcomputing.org 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.


theoryofcomputing.org 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: theoryofcomputing.org
Registry Domain ID: 1a6295384fc64b52b7f39e3591170e9e-LROR
Registrar WHOIS Server: http://whois.publicdomainregistry.com
Registrar URL: http://www.publicdomainregistry.com
Updated Date: 2021-06-02T02:40:05Z
Creation Date: 2004-05-07T09:36:08Z
Registry Expiry Date: 2029-05-07T09:36:08Z
Registrar: PDR Ltd. d/b/a PublicDomainRegistry.com
Registrar IANA ID: 303
Registrar Abuse Contact Email: abuse@publicdomainregistry.com
Registrar Abuse Contact Phone: +1.2013775952
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization: University of Chicago, Dept of Computer Science
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province: IL
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Registrant Country: US
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Name Server: ns1.active-dns.com
Name Server: ns2.active-dns.com
Name Server: ns3.active-dns.com
Name Server: ns4.active-dns.com
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2024-04-09T05:22:55Z

theoryofcomputing.org server information

Servers Location

theoryofcomputing.org desktop page speed rank

Last tested: 2018-04-27


Desktop Speed Good
92/100

theoryofcomputing.org Desktop Speed Test Quick Summary


priority - 2Eliminate 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.

Optimize CSS Delivery of the following:

http://theoryofcomputing.org/style/style.css

priority - 2Prioritize 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.

Only about 41% of the final above-the-fold content could be rendered with the full HTML response.
Click to see the screenshot with only the HTML response:

priority - 1Optimize images

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

Optimize the following images to reduce their size by 14.5KiB (40% reduction).

Compressing http://theoryofcomputing.org/images/logo.png could save 14.5KiB (40% reduction).

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:

http://theoryofcomputing.org/images/logo.png (expiration not specified)
http://theoryofcomputing.org/style/style.css (expiration not specified)
http://www.google-analytics.com/ga.js (2 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 1.1KiB (38% reduction).

Minifying http://theoryofcomputing.org/style/style.css could save 1.1KiB (38% reduction) after compression.

theoryofcomputing.org Desktop Resource Breakdown

Total Resources11
Number of Hosts3
Static Resources9
JavaScript Resources4
CSS Resources1

theoryofcomputing.org mobile page speed rank

Last tested: 2018-04-27


Mobile Speed Good
88/100

theoryofcomputing.org Mobile Speed Test Quick Summary


priority - 8Eliminate 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.

Optimize CSS Delivery of the following:

http://theoryofcomputing.org/style/style.css

priority - 2Leverage 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://theoryofcomputing.org/images/logo.png (expiration not specified)
http://theoryofcomputing.org/style/style.css (expiration not specified)
http://www.google-analytics.com/ga.js (2 hours)

priority - 1Optimize images

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

Optimize the following images to reduce their size by 14.5KiB (40% reduction).

Compressing http://theoryofcomputing.org/images/logo.png could save 14.5KiB (40% 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 1.1KiB (38% reduction).

Minifying http://theoryofcomputing.org/style/style.css could save 1.1KiB (38% reduction) after compression.

theoryofcomputing.org Mobile Resource Breakdown

Total Resources11
Number of Hosts3
Static Resources9
JavaScript Resources4
CSS Resources1

theoryofcomputing.org mobile page usability

Last tested: 2018-04-27


Mobile Usability Good
92/100

theoryofcomputing.org Mobile Usability Test Quick Summary


priority - 7Size 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.

The tap target <a href="/articles/main/index.html">Articles</a> and 3 others are close to other tap targets.

The tap target <a href="/articles/v014a002/">Special Issue…in progress</a> and 1 others are close to other tap targets.

The tap target <a href="/articles/v013a001/">Special Issue…in progress</a> and 2 others are close to other tap targets.

The tap target <a href="/articles/v012a013/">Special Issue…(completed)</a> and 26 others are close to other tap targets.

The tap target <a href="/articles/v012a013/">Special Issue…(completed)</a> and 5 others are close to other tap targets.

The tap target <a href="/articles/v014a002/">CCC 2017 Special Issue</a> and 3 others are close to other tap targets.

theoryofcomputing.org HTML validation

Errors

Almost standards mode doctype. Expected “<!DOCTYPE html>”.

Line: 1 Column: 1 - 102
"...<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html..."

Internal encoding declaration “iso-8859-1” disagrees with the actual encoding of the document (“utf-8”).

Line: 4 Column: 1 - 72
"...l> <head> <meta content="text/html; charset=ISO-8859-1" http-equiv="content-type"> <meta..."

Bad value “text/html; charset=ISO-8859-1” for attribute “content” on element “meta”: “iso-8859-1” is not a preferred encoding name. The preferred label for this encoding is “windows-1252”.

Line: 4 Column: 1 - 72
"...l> <head> <meta content="text/html; charset=ISO-8859-1" http-equiv="content-type"> <meta..."

The “valign” attribute on the “td” element is obsolete. Use CSS instead.

Line: 78 Column: 5 - 17
"...able> <tr> <td valign=top> <..." Line: 196 Column: 6 - 17
"...ble> <tr> <td valign=top> <..." Line: 206 Column: 8 - 17
"...l> </td> <td valign=top> <..." Line: 216 Column: 5 - 17
"...</tr> <tr> <td valign=top> <h2..." Line: 226 Column: 8 - 17
"...l> </td> <td valign=top> <h2..."

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

Line: 79 Column: 9 - 26
"...> <h2><font color="red">What i..." Line: 84 Column: 15 - 30
"... <font color=red><i>in ..." Line: 87 Column: 15 - 30
"... <font color=red><i>in ..." Line: 100 Column: 18 - 33
"... <li> <b><font color=red>RECENT..."

Warnings

This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.

Line: 2 Column: 103 - 6
"...oose.dtd"> <html> <head..."

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theoryofcomputing.org Ping

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theoryofcomputing.org 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.