--- title: "Download list of all W3.CSS sites" description: "Every website running W3.CSS, with domain, DNS, WHOIS, IP address, hosting country and global rank on each row. One file, rebuilt daily." url: https://webatla.com/technology/w3-css --- [Home](https://webatla.com/) › [Technologies](https://webatla.com/technology) › [UI frameworks](https://webatla.com/technology?category=UI%20frameworks) › W3.CSS ![W3.CSS logo](https://webatla.com/assets/tech-logos/w3-css.png) # Download websites that use W3.CSS 42,174 live sites using W3.CSS right now UI frameworks · by W3Schools · since 2015 · Open Source 42K sites, Dataset updated · 2026-10-27 Categories [UI frameworks](https://webatla.com/technology?category=UI%20frameworks) [🔒 Get the list](https://webatla.com/technology/w3-css#preview) Requires a dataset purchase [About W3.CSS](https://webatla.com/technology/w3-css#overview) [Database preview](https://webatla.com/technology/w3-css#preview) [By country](https://webatla.com/technology/w3-css#by-country) [By TLD](https://webatla.com/technology/w3-css#by-tld) [Download](https://webatla.com/technology/w3-css#download) All figures as of Oct 27, 2026 All figures here come from one snapshot of the webatla database, taken on this date (UTC). We usually refresh it every day. 42,174, Sites detected 0.0%, Of all websites ## Preview W3.CSS site datasets W3.CSS detection is a value inside the **Technologies** column. Two datasets carry it. **Technologies · €159 / month · 42,174 rows · 14 columns · webatla-technologies-w3-css-2026-10-27.jsonl.zst** | Domain | TLD suffix | TLD | Domain type | HTTP status | IP address | Country by IP | Social networks | Technologies last data checked | Technologies | PR value | Harmonic value | Domain creation date | Domain expiration date | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | w3schools.com | [com](https://webatla.com/tld/com) | [com](https://webatla.com/tld/com) | ICANN | HTTP 200 | 13.248.240.135 | [US](https://webatla.com/country/us) | {…} | 2026-09-22 | Google Analytics G-9YNMTB56NB , Google Tag Manager GTM-KTCFC3S , PWA, HSTS, HTTP/2, W3.CSS, Favicon, Zendesk, Amazon SES, Open Graph | 0.0000437866 | 19,300,426 | 2000-03-21 | 2027-03-21 | | kanimaths.com | [com](https://webatla.com/tld/com) | [com](https://webatla.com/tld/com) | ICANN | HTTP 200 | 15.197.148.33 | [US](https://webatla.com/country/us) | {…} | 2026-10-20 | Google AdSense ca-pub-4018501560237024 ca-pub-8508426548022886 +1 , Google Analytics GA4 G-6PF8FV8VPV , RSS, Java, cdnjs, HTTP/2, Python, W3.CSS, jQuery 1.12.4 , Blogger | 0.000000755221 | 14,283,376 | 2022-01-16 | 2028-01-16 | | xquartz.org | [org](https://webatla.com/tld/org) | [org](https://webatla.com/tld/org) | ICANN | HTTP 200 | 104.21.57.120 | [US](https://webatla.com/country/us) | {…} | 2026-09-21 | HSTS, Fastly, HTTP/3, W3.CSS, Favicon, Varnish, Cloudflare, GitHub Pages, Google Site Verification | 0.000000660105 | 15,441,254 | 2015-10-21 | 2027-10-21 | | diyanet.gov.tr | [gov.tr](https://webatla.com/tld/tr) | [tr](https://webatla.com/tld/tr) | ICANN | HTTP 200 | 88.255.37.202 | [TR](https://webatla.com/country/tr) | {…} | 2026-10-13 | Google Analytics GA4 G-8HXJVG1BCR UA-3381057-1 +1 , IIS 10.0 , HSTS, Azure, W3.CSS, jQuery 3.2.1 , Favicon, Bootstrap, Moment.js, Google Maps | 0.000000479335 | 17,242,918 | 1997-04-04 | 2027-04-03 | | sewanee.edu | [edu](https://webatla.com/tld/edu) | [edu](https://webatla.com/tld/edu) | ICANN | HTTP 200 | 152.97.17.168 | [US](https://webatla.com/country/us) | {…} | 2026-10-26 | Google Analytics GA4 G-9YPED8GC68 , Google Tag Manager GTM-NFQLG3P GTM-T57MD7K +1 , PHP 8.2.35 , PWA, HSTS, W3.CSS, jQuery 3.7.1 , Favicon, Lightbox, Hoefler&Co | 0.000000364813 | 17,526,798 | 1992-09-09 | 2027-07-31 | **All data · €599 / month · 42,174 rows · 23 columns · webatla-all-data-w3-css-2026-10-27.jsonl.zst** | Domain | TLD suffix | TLD | Domain type | HTTP status | IP address | Country by IP | Social networks | Technologies last data checked | Technologies | DNS last data checked | DNS Status | DNS records | PR value | Harmonic value | RDAP/WHOIS last data checked | RDAP/WHOIS method | Domain creation date | Domain expiration date | Domain last changed | Registrar | RDAP/WHOIS Record | Response Status RDAP/WHOIS | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | w3schools.com | [com](https://webatla.com/tld/com) | [com](https://webatla.com/tld/com) | ICANN | HTTP 200 | 13.248.240.135 | [US](https://webatla.com/country/us) | {…} | 2026-09-22 | Google Analytics G-9YNMTB56NB , Google Tag Manager GTM-KTCFC3S , PWA, HSTS, HTTP/2, W3.CSS, Favicon, Zendesk, Amazon SES, Open Graph | 2026-10-16 | TRUE | {…} | 0.0000437866 | 19,300,426 | 2026-03-11 | RDAP | 2000-03-21 | 2027-03-21 | 2026-03-11 | Amazon Registrar, Inc. | {…} | Domain is active | | kanimaths.com | [com](https://webatla.com/tld/com) | [com](https://webatla.com/tld/com) | ICANN | HTTP 200 | 15.197.148.33 | [US](https://webatla.com/country/us) | {…} | 2026-10-20 | Google AdSense ca-pub-4018501560237024 ca-pub-8508426548022886 +1 , Google Analytics GA4 G-6PF8FV8VPV , RSS, Java, cdnjs, HTTP/2, Python, W3.CSS, jQuery 1.12.4 , Blogger | 2026-10-18 | TRUE | {…} | 0.000000755221 | 14,283,376 | 2025-07-02 | RDAP | 2022-01-16 | 2028-01-16 | 2025-07-02 | GoDaddy.com, LLC | {…} | Domain is active | | xquartz.org | [org](https://webatla.com/tld/org) | [org](https://webatla.com/tld/org) | ICANN | HTTP 200 | 104.21.57.120 | [US](https://webatla.com/country/us) | {…} | 2026-09-21 | HSTS, Fastly, HTTP/3, W3.CSS, Favicon, Varnish, Cloudflare, GitHub Pages, Google Site Verification | 2026-10-13 | TRUE | {…} | 0.000000660105 | 15,441,254 | 2026-10-20 | RDAP | 2015-10-21 | 2027-10-21 | 2026-09-26 | Cloudflare, Inc. | {…} | Domain is active | | diyanet.gov.tr | [gov.tr](https://webatla.com/tld/tr) | [tr](https://webatla.com/tld/tr) | ICANN | HTTP 200 | 88.255.37.202 | [TR](https://webatla.com/country/tr) | {…} | 2026-10-13 | Google Analytics GA4 G-8HXJVG1BCR UA-3381057-1 +1 , IIS 10.0 , HSTS, Azure, W3.CSS, jQuery 3.2.1 , Favicon, Bootstrap, Moment.js, Google Maps | 2026-10-19 | TRUE | {…} | 0.000000479335 | 17,242,918 | 2026-04-22 | WHOIS | 1997-04-04 | 2027-04-03 | — | NIC Handle : tk1036 | {…} | Domain is active | | sewanee.edu | [edu](https://webatla.com/tld/edu) | [edu](https://webatla.com/tld/edu) | ICANN | HTTP 200 | 152.97.17.168 | [US](https://webatla.com/country/us) | {…} | 2026-10-26 | Google Analytics GA4 G-9YPED8GC68 , Google Tag Manager GTM-NFQLG3P GTM-T57MD7K +1 , PHP 8.2.35 , PWA, HSTS, W3.CSS, jQuery 3.7.1 , Favicon, Lightbox, Hoefler&Co | 2026-10-16 | TRUE | {…} | 0.000000364813 | 17,526,798 | 2026-07-30 | WHOIS | 1992-09-09 | 2027-07-31 | 2026-07-02 | — | {…} | Domain is active | [↓ Download preview (20 rows, free)](https://webatla.com/api/v1/sample/technology/w3-css?dataset=technologies) [Buy Technologies · €159 / month](https://webatla.com/account/checkout?dataset=technologies) ## W3.CSS sites by country | Country | Sites | Share | | --- | --- | --- | | 🇺🇸 [United States](https://webatla.com/country/us) | 17,768 | 43.7% | | 🇩🇪 [Germany](https://webatla.com/country/de) | 6,054 | 14.9% | | 🇫🇷 [France](https://webatla.com/country/fr) | 2,040 | 5.0% | | 🇬🇧 [United Kingdom](https://webatla.com/country/gb) | 1,276 | 3.1% | | 🇳🇱 [Netherlands](https://webatla.com/country/nl) | 1,132 | 2.8% | ## W3.CSS sites by TLD | TLD | Sites | Share | | --- | --- | --- | | [.com](https://webatla.com/tld/com) | 17,039 | 40.4% | | [.de](https://webatla.com/tld/de) | 2,424 | 5.7% | | [.org](https://webatla.com/tld/org) | 2,388 | 5.7% | | [.net](https://webatla.com/tld/net) | 1,469 | 3.5% | | [.uk](https://webatla.com/tld/uk) | 1,391 | 3.3% | ## The W3.CSS dataset Every site we've detected as running W3.CSS, with version, hosting, country, TLD and traffic rank. ### W3.CSS lives inside 2 datasets W3.CSS detection is part of **Technologies** (€159/mo) and **All data** (€599/mo). Buy either to filter the full 42,174-site list, or grab a free preview first. [See datasets](https://webatla.com/pricing) [↓ Download free preview (20 rows)](https://webatla.com/api/v1/sample/technology/w3-css?dataset=technologies) ## About W3.CSS ### At a glance - **Vendor:** W3Schools - **Website:** w3schools.com ↗ - **Language:** CSS - **License:** Open Source - **First release:** 2015-01-01 Frameworks are usually chosen by teams. This one is usually chosen by an individual, often in the same month they learned what a stylesheet is, and that origin story shapes the entire population. W3Schools publishes it as an Open Source framework, available since 2015 and written purely as CSS with no scripting dependency at all. There is no build step, no package manager, no configuration file. A single link tag in the head of a document is the whole installation, and the documentation sits inside the tutorial site where a very large share of the world's self taught developers first learned markup. The framework is not competing for adoption in engineering organisations. It is competing for the moment when somebody needs a page to look finished by tomorrow. So the detection means something quite specific. A site carrying it was, with fair reliability, assembled by hand rather than generated, by one person rather than a team, without a front end pipeline and without a front end budget. The population runs to small service businesses, tradespeople, clubs and associations, schools and departments, local institutions, personal professional pages and early stage projects. Those are not the sites that appear in traffic rankings, and they are close to impossible to enumerate through any channel except a full crawl. One taxonomy note before anyone filters on it. We classify the framework under UI frameworks, which is an artefact of how the category tree grew rather than a description of the code. The framework ships no scripts whatsoever, so a researcher building a list of script based dependencies should exclude it explicitly instead of inheriting it from the category. Geography adds a second axis rather than a plot twist. United States accounts for 17,768 of what we detect and the .com zone leads the domain split, which follows the habit of registering in a generic zone rather than a national one. The cross reference is where this gets commercially interesting. Look at what else resolved on the same rows. A meaningful share of these sites carry no content management system, no ecommerce, no tag manager and no marketing stack of any kind, which in a web that is overwhelmingly generated makes them a genuinely unusual segment: hand written, static, unmanaged and almost certainly overdue for replacement. Website builders, hosts, agencies and local marketing firms all want that exact list, and accessibility auditors want it for entirely different reasons, since hand rolled markup fails in patterns that generated markup does not. We do not publish a version, and the reason is structural. The stylesheet is routinely downloaded, renamed and served locally rather than linked from the publisher, which removes both the version marker and, in many cases, the filename our detection depends on. So the count is a floor. Sites that copied the file and renamed it are running the framework and are missing from our population, and the error runs consistently in that one direction. ## Frequently asked questions How many websites use W3.CSS? webatla detects W3.CSS on 42K websites, refreshed daily, each with its domain, DNS, WHOIS, IP, country and ranking. Can I download the list of websites using W3.CSS? Yes, as structured JSONL. Grab a free sample first. What's included for each site, and how fresh is it? Domain, DNS, RDAP/WHOIS, the full technology stack, IP & country, PageRank and Harmonic, re-detected and re-exported daily. How do I find the websites using W3.CSS? Buy the technology dataset, then download the complete list of domains we detect using W3.CSS, re-exported every day. What else is in the W3.CSS technology data? Each row places W3.CSS next to the other technology on the same site, plus DNS, WHOIS, IP, country and ranking. Can I download just the sites using W3.CSS, or the whole database? Both. Every site running W3.CSS comes in the Technologies dataset, one downloadable file. Or buy All data for the entire database: technologies plus identity, ranking, DNS and RDAP/WHOIS for every domain, combined in one file. Daily fresh export. How do I download the list of websites using W3.CSS? Three steps: (1) grab the free 10,000-row sample to inspect the schema, (2) buy the Technologies dataset, (3) download the full list of every domain we detect running W3.CSS as a JSON Lines file. It is re-exported daily, so you can re-download the freshest list any time inside your access window. Each row carries the domain plus DNS, WHOIS, IP, hosting country and rank. ## Get the full list of websites using W3.CSS Pick the dataset that covers what you need. Each one includes W3.CSS and downloads as JSONL, rebuilt daily. Technologies, 14 columns Full website tech stack per site: CMS, payments, analytics, frameworks. €159 / mo [Buy and download](https://webatla.com/account/checkout?dataset=technologies) [Download preview dataset](https://webatla.com/api/v1/preview?dataset=technologies) All data, 23 columns Everything we have, in a single package. The full webatla universe. €599 / mo [Buy and download](https://webatla.com/account/checkout?dataset=all-data) [Download preview dataset](https://webatla.com/api/v1/preview?dataset=all-data) Want to compare every dataset side by side? [Visit the pricing page](https://webatla.com/pricing) ## Related technologies [![Bootstrap logo](https://webatla.com/assets/tech-logos/bootstrap.png) Bootstrap JavaScript Framework · 14.0M sites](https://webatla.com/technology/bootstrap) [![Animate.css logo](https://webatla.com/assets/tech-logos/animate-css.png) Animate.css JavaScript Library · 2.7M sites](https://webatla.com/technology/animate-css) [![Tailwind CSS logo](https://webatla.com/assets/tech-logos/tailwind-css.png) Tailwind CSS JavaScript Library · 1.0M sites](https://webatla.com/technology/tailwind-css) [ZF ZURB Foundation JavaScript Framework · 500K sites](https://webatla.com/technology/zurb-foundation)