THOUGHTCO.COM ThoughtCo.com is the World's Largest Education Resource

thoughtco.com Website Information

Daily Unique Visits: 2,569,758

Daily Page Views: 20,558,064

Income Per Day: $20,558

Estimated Value: $22,202,640

thoughtco.com is registered under .COM top-level domain. Please check other sites in .COM zone.

No name server records were found.

and is probably hosted by FASTLY - Fastly, US. See the full list of other websites hosted by FASTLY - Fastly, US.

The highest website thoughtco.com position in Alexa rank database was 515 and the lowest rank position was 82524. Current position of thoughtco.com in Alexa rank database is 593.

Desktop speed score of thoughtco.com (80/100) is better than the results of 69.89% of other sites and shows that the page is performing great on desktop computers.

Mobile usability score of thoughtco.com (99/100) is better than the results of 79.46% of other sites and means that the page is mobile-friendly.

Mobile speed score of thoughtco.com (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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thoughtco.com 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.


thoughtco.com 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: THOUGHTCO.COM
Registry Domain ID: 1773970218_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.markmonitor.com
Registrar URL: http://www.markmonitor.com
Updated Date: 2021-12-15T09:41:46Z
Creation Date: 2013-01-16T19:49:52Z
Registry Expiry Date: 2024-01-16T19:49:52Z
Registrar: MarkMonitor Inc.
Registrar IANA ID: 292
Registrar Abuse Contact Email: abusecomplaints@markmonitor.com
Registrar Abuse Contact Phone: +1.2086851750
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Domain Status: serverDeleteProhibited https://icann.org/epp#serverDeleteProhibited
Domain Status: serverTransferProhibited https://icann.org/epp#serverTransferProhibited
Domain Status: serverUpdateProhibited https://icann.org/epp#serverUpdateProhibited
Name Server: DNS1.P05.NSONE.NET
Name Server: DNS2.P05.NSONE.NET
Name Server: DNS3.P05.NSONE.NET
Name Server: DNS4.P05.NSONE.NET
Name Server: NS01.ICSN.COM
Name Server: NS02.ICSN.COM
Name Server: NS03.ICSN.COM
Name Server: NS04.ICSN.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2023-09-29T23:58:38Z

thoughtco.com server information

Servers Location

thoughtco.com desktop page speed rank

Last tested: 2018-04-01


Desktop Speed Medium
80/100

thoughtco.com Desktop Speed Test Quick Summary


priority - 9Avoid 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://thoughtco.com/
https://thoughtco.com/
https://www.thoughtco.com/

priority - 6Eliminate 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.

Remove render-blocking JavaScript:

https://www.thoughtco.com/static/2.41.0/cache/eNp9…i_kZ6N7xW-848kD.min.js

Optimize CSS Delivery of the following:

https://www.thoughtco.com/static/2.41.0/cache/eNqd…8_fcrB-QFxN_Dz.min.css

priority - 4Optimize images

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

Optimize the following images to reduce their size by 42KiB (40% reduction).

Compressing and resizing https://www.thoughtco.com/static/2.41.0/image/hp-science,tech,math.png could save 10.6KiB (44% reduction).
Compressing and resizing https://www.thoughtco.com/static/2.41.0/image/hp-resources.png could save 9.2KiB (50% reduction).
Compressing https://tpc.googlesyndication.com/simgad/1962552152297886552 could save 7.9KiB (47% reduction).
Compressing and resizing https://www.thoughtco.com/static/2.41.0/image/hp-humanities.png could save 5KiB (30% reduction).
Compressing and resizing https://www.thoughtco.com/static/2.41.0/image/hp-arts,music,recreation.png could save 4.8KiB (29% reduction).
Compressing and resizing https://www.thoughtco.com/static/2.41.0/image/newsletter.png could save 4.5KiB (38% reduction).

priority - 4Leverage 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://ak.sail-horizon.com/spm/spm.v1.min.js (10 minutes)
https://tag.bounceexchange.com/2473/i.js (10 minutes)
https://www.googletagmanager.com/gtm.js?id=GTM-KL5JS8Z (15 minutes)
https://www.googletagservices.com/tag/js/gpt.js (15 minutes)
https://connect.facebook.net/en_US/fbevents.js (20 minutes)
https://connect.facebook.net/signals/config/786108…1251?v=2.8.12&r=stable (20 minutes)
https://pagead2.googlesyndication.com/pagead/osd.js (60 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
https://secure-assets.rubiconproject.com/utils/xapi/multi-sync.js (3.2 hours)

priority - 0Minify 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 1.6KiB (17% reduction).

Minifying https://pixel.adsafeprotected.com/jload?anId=92626…ar&impId=&custom2=1366 could save 1.6KiB (17% reduction) after compression.

priority - 0Enable 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 140B (36% reduction).

Compressing https://ids.cdnwidget.com/c?cookieID=&deviceID=&GC…deviceTimezone%22:-7}} could save 140B (36% reduction).

thoughtco.com Desktop Resource Breakdown

Total Resources122
Number of Hosts54
Static Resources38
JavaScript Resources32
CSS Resources1

thoughtco.com mobile page speed rank

Last tested: 2018-04-22


Mobile Speed Medium
67/100

thoughtco.com Mobile Speed Test Quick Summary


priority - 34Avoid 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://thoughtco.com/
https://thoughtco.com/
https://www.thoughtco.com/

priority - 8Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 1 blocking script resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

https://www.thoughtco.com/static/2.43.0/cache/eNp9…i_kZ6N7xW-848kD.min.js

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:

https://secure-assets.rubiconproject.com/static/psa/de_ch/15.jpg (expiration not specified)
https://ak.sail-horizon.com/spm/spm.v1.min.js (10 minutes)
https://www.googletagmanager.com/gtm.js?id=GTM-KL5JS8Z (15 minutes)
https://www.googletagservices.com/tag/js/gpt.js (15 minutes)
https://connect.facebook.net/en_US/fbevents.js (20 minutes)
https://connect.facebook.net/signals/config/786108…1251?v=2.8.12&r=stable (20 minutes)
https://js-sec.indexww.com/ht/p/183710-52077863209334.js (59.8 minutes)
https://pagead2.googlesyndication.com/pagead/osd.js (60 minutes)
https://ads.rubiconproject.com/ad/7499.js (90.9 minutes)
https://secure-assets.rubiconproject.com/utils/xapi/multi-sync.js (98 minutes)
https://www.google-analytics.com/analytics.js (2 hours)

priority - 2Optimize images

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

Optimize the following images to reduce their size by 15.5KiB (51% reduction).

Compressing https://secure-assets.rubiconproject.com/static/psa/de_ch/15.jpg could save 15.5KiB (51% reduction).

priority - 0Minify 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 1.5KiB (16% reduction).

Minifying https://pixel.adsafeprotected.com/jload?anId=92626…par&impId=&custom2=412 could save 1.5KiB (16% reduction) after compression.

thoughtco.com Mobile Resource Breakdown

Total Resources110
Number of Hosts51
Static Resources32
JavaScript Resources28

thoughtco.com mobile page usability

Last tested: 2018-04-22


Mobile Usability Good
99/100

thoughtco.com Mobile Usability Test Quick Summary


priority - 0Size 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="https://www.th…s-math-4132465" class="column-btn">All Science, Tech, Math</a> and 3 others are close to other tap targets.

thoughtco.com HTML validation

Warnings

The “type” attribute is unnecessary for JavaScript resources.

Line: 8 Column: 6 - 36
"... <script type="text/javascript"></scri..." Line: 61 Column: 6 - 383
"... <script type="text/javascript" data-glb-js="top" src="/static/3.33.0/cache/eNp1kUluwzAMRS9UQXcoUHRbBL6ABtphNdClKAfu6SsHRqAE6k58HD4_pYsYQae_i45kPPg3fZKIthx4N6E-YItXivuMMfZsg-yJdSIPnPGXVTJZIjxKHKWVMmQp2tINuAEKCEW13vP5f-1PBd6LMOZFeyzSg36JKhhR-lENzlkNuac0Tnx-TQNncmWS3lFLMbRkhYmNCy-rWAYTVsJm4rljBobsYCy9Vluq7clleu9DOaQuYj82eJmczG6H5zb-_onLKk9KZgG1IdxGLYuko8ZFdEHJ6e4PmInQIg.min.js"></scri..." Line: 64 Column: 6 - 36
"... <script type="text/javascript">var Mn..." Line: 1384 Column: 1 - 533
"... </svg> <script type="text/javascript" data-glb-js="bottom" src="/static/3.33.0/cache/eNqdU0FywyAM_FApf2int17avABjGSuWRYrkOsnrCyEzySS0nfZiiUUrVmuwok7RWx_nXWRgFdvFFZLdfiyQDufwYM9lW7GLIqEiiOkWJDUr6mhuyu66kTseBI8gl-y658xKG58iUasFskJiR7aHoSiTmiTovz_QixggmDNkiras10ry9h3K4Rtgienv7JeKvVWoxZ-cwr5-W9uwr6NkDYaQJynT3IEt5op9gBxHwDDq8-g4wCuKAme9LbDVhPJenpGin0zJr9JW-RDTLJZhFQLNGo1g4GV3j7TI_6TVHyAZnQ5mQj3fwMcL0mK5_uRkmeYJibroUt-0kd0nhgxGtrKLSsW3S9ZiBIpdvnsjuP7kdAnfmxWK9Y6MgEt-vFn-ImhYiMQnADYZvVn-dCc4Kg7oT11M55jrK2nAX8tghzc.min.js" async defer="true"></scri..." Line: 1385 Column: 1 - 31
"...</script> <script type="text/javascript">Mntl.u..."

The “type” attribute for the “style” element is not needed and should be omitted.

Line: 59 Column: 6 - 28
"... <style type="text/css"></styl..."

The “banner” role is unnecessary for element “header”.

Line: 586 Column: 1 - 89
"...s> </svg> <header id="header_1-0" class="comp header" role="banner" data-tracking-container="true"> <div ..."

The “navigation” role is unnecessary for element “nav”.

Line: 711 Column: 1 - 131
"...v-panel"> <nav id="fullscreen-nav_1-0" class="comp fullscreen-nav fullscreen-nav-alternate" role="navigation" data-tracking-container="true"> <div ..." Line: 1256 Column: 1 - 69
"...ter-nav"> <nav id="primary-nav_1-0" class="comp primary-nav" role="navigation"> <ul c..." Line: 1348 Column: 1 - 146
"...-bottom"> <nav id="footer__dotdash-family_1-0" class="comp footer__dotdash-family mntl-dotdash-family-nav" role="navigation" data-tracking-container="true"> <div ..."

The “main” role is unnecessary for element “main”.

Line: 839 Column: 1 - 45
"...</header> <main id="main" class="loc main" role="main"> <ifra..."

“role="none"” is not yet supported in all browsers. Consider instead either using “role="presentation"” or “role="none presentation"”.

Line: 840 Column: 1 - 80
"...e="main"> <iframe id="height-change-listener" role="none" tabindex="-1" src="about:blank"></ifra..."

The first occurrence of ID “image_1-0” was here.

Line: 847 Column: 1 - 117
"...cience" > <img id="image_1-0" class="comp image" src="/static/3.33.0/image/hp-science,tech,math.png" alt="science, tech, math"></img>..." Line: 847 Column: 1 - 117
"...cience" > <img id="image_1-0" class="comp image" src="/static/3.33.0/image/hp-science,tech,math.png" alt="science, tech, math"></img>..." Line: 847 Column: 1 - 117
"...cience" > <img id="image_1-0" class="comp image" src="/static/3.33.0/image/hp-science,tech,math.png" alt="science, tech, math"></img>..."

The first occurrence of ID “block_1-0” was here.

Line: 876 Column: 1 - 179
"...st-item"> <a id="block_1-0" class="comp block-small block" data-doc-id="2698977" href="https://www.thoughtco.com/entropy-definition-calculation-and-misconceptions-2698977" data-ordinal="1"> <div ..." Line: 876 Column: 1 - 179
"...st-item"> <a id="block_1-0" class="comp block-small block" data-doc-id="2698977" href="https://www.thoughtco.com/entropy-definition-calculation-and-misconceptions-2698977" data-ordinal="1"> <div ..." Line: 876 Column: 1 - 179
"...st-item"> <a id="block_1-0" class="comp block-small block" data-doc-id="2698977" href="https://www.thoughtco.com/entropy-definition-calculation-and-misconceptions-2698977" data-ordinal="1"> <div ..." Line: 876 Column: 1 - 179
"...st-item"> <a id="block_1-0" class="comp block-small block" data-doc-id="2698977" href="https://www.thoughtco.com/entropy-definition-calculation-and-misconceptions-2698977" data-ordinal="1"> <div ..." Line: 876 Column: 1 - 179
"...st-item"> <a id="block_1-0" class="comp block-small block" data-doc-id="2698977" href="https://www.thoughtco.com/entropy-definition-calculation-and-misconceptions-2698977" data-ordinal="1"> <div ..." Line: 876 Column: 1 - 179
"...st-item"> <a id="block_1-0" class="comp block-small block" data-doc-id="2698977" href="https://www.thoughtco.com/entropy-definition-calculation-and-misconceptions-2698977" data-ordinal="1"> <div ..." Line: 876 Column: 1 - 179
"...st-item"> <a id="block_1-0" class="comp block-small block" data-doc-id="2698977" href="https://www.thoughtco.com/entropy-definition-calculation-and-misconceptions-2698977" data-ordinal="1"> <div ..." Line: 876 Column: 1 - 179
"...st-item"> <a id="block_1-0" class="comp block-small block" data-doc-id="2698977" href="https://www.thoughtco.com/entropy-definition-calculation-and-misconceptions-2698977" data-ordinal="1"> <div ..." Line: 876 Column: 1 - 179
"...st-item"> <a id="block_1-0" class="comp block-small block" data-doc-id="2698977" href="https://www.thoughtco.com/entropy-definition-calculation-and-misconceptions-2698977" data-ordinal="1"> <div ..." Line: 876 Column: 1 - 179
"...st-item"> <a id="block_1-0" class="comp block-small block" data-doc-id="2698977" href="https://www.thoughtco.com/entropy-definition-calculation-and-misconceptions-2698977" data-ordinal="1"> <div ..." Line: 876 Column: 1 - 179
"...st-item"> <a id="block_1-0" class="comp block-small block" data-doc-id="2698977" href="https://www.thoughtco.com/entropy-definition-calculation-and-misconceptions-2698977" data-ordinal="1"> <div ..."

The first occurrence of ID “block-list_1-0” was here.

Line: 874 Column: 1 - 90
"...</a></h2> <ul id="block-list_1-0" class="comp block-list" data-chunk data-tracking-container="true"> <li c..." Line: 874 Column: 1 - 90
"...</a></h2> <ul id="block-list_1-0" class="comp block-list" data-chunk data-tracking-container="true"> <li c..." Line: 874 Column: 1 - 90
"...</a></h2> <ul id="block-list_1-0" class="comp block-list" data-chunk data-tracking-container="true"> <li c..."

The first occurrence of ID “block_2-0” was here.

Line: 1129 Column: 1 - 132
"...condary"> <a id="block_2-0" class="comp block no-image" data-doc-id href="https://www.thoughtco.com/time-to-spend-studying-in-college-793230"> <div ..."

The “contentinfo” role is unnecessary for element “footer”.

Line: 1154 Column: 1 - 94
"...> </main> <footer id="footer_1-0" class="comp footer" role="contentinfo" data-tracking-container="true"> <div ..."

Errors

A “charset” attribute on a “meta” element found after the first 1024 bytes.

Line: 25 Column: - 26
"... charset="utf-8"> <meta http-e..."

Attribute “itemprop” not allowed on element “meta” at this point.

Line: 34 Column: 1 - 226
"...e</title> <meta name="description" content="From chemistry to computer programming, arts to World War II, ThoughtCo.com provides guides, tips, and resources to help you understand more about the world around us." itemprop="description"> <meta..."

Stray end tag “link”.

Line: 56 Column: 621 - 627
"....min.css"></link> ..."

End tag “g” did not match the name of the current open element (“symbol”).

Line: 543 Column: 608 - 611
"...96z"/></g></g> </sym..."

Stray end tag “g”.

Line: 543 Column: 608 - 611
"...96z"/></g></g> </sym..."

Element “div” not allowed as child of element “button” in this context. (Suppressing further errors from this subtree.)

Line: 590 Column: 1 - 31
"...nu</span> <div class="menu-button-inner"> <svg ..."

End tag “button” seen, but there were open elements.

Line: 598 Column: 1 - 9
"...vg> <div> </button> </div..."

Unclosed element “div”.

Line: 597 Column: 1 - 5
"...e> </svg> <div> </but..." Line: 590 Column: 1 - 31
"...nu</span> <div class="menu-button-inner"> <svg ..."

Duplicate attribute “type”.

Line: 705 Column: - 101
"...r="Search" type="text" require..."

Stray end tag “img”.

Line: 847 Column: 118 - 123
"...ch, math"></img> <span..." Line: 853 Column: 102 - 107
"...manities"></img> <span..." Line: 859 Column: 100 - 105
"...anguages"></img> <span..." Line: 865 Column: 100 - 105
"...esources"></img> <span..." Line: 1089 Column: 163 - 168
"...wsletter"></img> <div ..." Line: 1252 Column: 183 - 188
"...="TRUSTe"></img> </a> ..."

Duplicate ID “image_1-0”.

Line: 853 Column: 1 - 101
"...nities" > <img id="image_1-0" class="comp image" src="/static/3.33.0/image/hp-humanities.png" alt="humanities"></img>..." Line: 859 Column: 1 - 99
"...guages" > <img id="image_1-0" class="comp image" src="/static/3.33.0/image/hp-languages.png" alt="languages">..." Line: 865 Column: 1 - 99
"...ources" > <img id="image_1-0" class="comp image" src="/static/3.33.0/image/hp-resources.png" alt="resources"></img>..."

Bad value “//:0” for attribute “src” on element “img”: Invalid host: empty host.

Line: 885 Column: 26 - 2
"...ck-media"><img data-srcset="https://www.thoughtco.com/thmb/zhHBZDe3tBkoke1djajarYzy7_0=/250x0/filters:no_upscale():max_bytes(150000):strip_icc()/GettyImages-529148993-579ad0ba3df78c3276a7ced8.jpg 250w, https://www.thoughtco.com/thmb/mNQeQe6K7bHwfQuMx3lie4CSQm8=/337x0/filters:no_upscale():max_bytes(150000):strip_icc()/GettyImages-529148993-579ad0ba3df78c3276a7ced8.jpg 337w, https://www.thoughtco.com/thmb/jobVlCCSKNsh--w1oDEmFwbH8So=/424x0/filters:no_upscale():max_bytes(150000):strip_icc()/GettyImages-529148993-579ad0ba3df78c3276a7ced8.jpg 424w, https://www.thoughtco.com/thmb/9o1oeVrWxDX50K1Sb94if-eW-lM=/600x0/filters:no_upscale():max_bytes(150000):strip_icc()/GettyImages-529148993-579ad0ba3df78c3276a7ced8.jpg 600w" data-sizes="(min-width: 1040px) 250px, (min-width: 780px) 450px, 100vw" data-src="https://www.thoughtco.com/thmb/1FaqRgSm8y18THHSO2eN_4yfKGE=/600x400/filters:no_upscale():max_bytes(150000):strip_icc()/GettyImages-529148993-579ad0ba3df78c3276a7ced8.jpg" src="//:0" alt="graphic symbolizing entropy" class="lazyload block-img" data-expand="300" /> </div..." Line: 933 Column: 26 - 2
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thoughtco.com 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.


thoughtco.com 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.