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Sites built with W3.CSS

Lightweight CSS framework from W3Schools, styled after Google's Material Design.

#10 of 18 in CSS Framework First seen: Jul 2, 2026 Last seen: Aug 20, 2026 Website: w3schools.com

19 sites

14 found by StackScope, 5 via launch platforms

StackScope Wider Web 14 Product Hunt 5
  • StackScope Wider Web 14
  • Product Hunt 5
View: All sites All launches Launch platforms StackScope Discovery StackScope Wider Web
Last 7 days 0.0% -0.0pp
Most used with Google Search Console, Google Fonts, Google Workspace
Top product types Education, Health, Design

W3.CSS has been detected on 19 launches we've crawled, with 12 of those in August 2026 (0.0% of the month's launches so far). Most recent detection: Law Prep Tutorial, yesterday.

It's most commonly paired with Google Search Console, Google Fonts, and Google Workspace. By product type, the launches using it are most often Education (60%), Health (20%), and Design (10%).

What kind of products ship with W3.CSS

10 launches

Education
60.00%
Health
20.00%
Design
10.00%
Marketing
10.00%

Domain endings using W3.CSS

19 sites

  • .com 42.11%
  • .in 10.53%
  • .site 10.53%
  • .de 5.26%

Share of new sites using W3.CSS

Each dot is one launch day. Line is the 7-day rolling average. Chart starts at first detection.

0.0%
last 7 days
-0.0pp vs prior week
0.0%
August so far
12 of 866,482 sites
19
sites all time
since Jul 2026
W3.CSS daily detection trend Before 8 July 2026: launch platforms only. We began crawling the wider web on this date, so the cohort this share is measured against changes here. 5% 2% 0% Jul Aug Jul 1, 2026: Adoption figures now count launches from launch platforms. Use the source view to include StackScope Discovery. Jun 25 · 0 / 618 = 0.0% Jun 26 · 0 / 534 = 0.0% Jun 27 · 0 / 431 = 0.0% Jun 28 · 0 / 383 = 0.0% Jun 29 · 0 / 501 = 0.0% Jun 30 · 0 / 801 = 0.0% Jul 1 · 0 / 795 = 0.0% Jul 2 · 1 / 604 = 0.2% Jul 3 · 0 / 497 = 0.0% Jul 4 · 0 / 411 = 0.0% Jul 5 · 0 / 367 = 0.0% Jul 6 · 0 / 551 = 0.0% Jul 7 · 0 / 1167 = 0.0% Jul 8 · 0 / 12572 = 0.0% Jul 9 · 1 / 23712 = 0.0% Jul 10 · 0 / 22522 = 0.0% Jul 11 · 0 / 15956 = 0.0% Jul 12 · 0 / 20267 = 0.0% Jul 13 · 0 / 20893 = 0.0% Jul 14 · 1 / 20376 = 0.0% Jul 15 · 0 / 17213 = 0.0% Jul 16 · 0 / 14243 = 0.0% Jul 17 · 0 / 19686 = 0.0% Jul 18 · 0 / 22628 = 0.0% Jul 19 · 2 / 25899 = 0.0% Jul 20 · 0 / 22540 = 0.0% Jul 21 · 0 / 21606 = 0.0% Jul 22 · 0 / 23160 = 0.0% Jul 23 · 0 / 16814 = 0.0% Jul 24 · 0 / 12799 = 0.0% Jul 25 · 0 / 8915 = 0.0% Jul 26 · 0 / 19910 = 0.0% Jul 27 · 2 / 33730 = 0.0% Jul 28 · 0 / 38005 = 0.0% Jul 29 · 0 / 49864 = 0.0% Jul 30 · 0 / 43684 = 0.0% Jul 31 · 0 / 50809 = 0.0% Aug 1 · 0 / 50192 = 0.0% Aug 2 · 1 / 49488 = 0.0% Aug 3 · 0 / 48027 = 0.0% Aug 4 · 0 / 37171 = 0.0% Aug 5 · 2 / 32573 = 0.0% Aug 6 · 1 / 36369 = 0.0% Aug 7 · 1 / 37663 = 0.0% Aug 8 · 0 / 39515 = 0.0% Aug 9 · 1 / 33984 = 0.0% Aug 10 · 2 / 28613 = 0.0% Aug 11 · 0 / 31786 = 0.0% Aug 12 · 0 / 33206 = 0.0% Aug 13 · 0 / 49419 = 0.0% Aug 14 · 1 / 51044 = 0.0% Aug 15 · 1 / 51067 = 0.0% Aug 16 · 0 / 51370 = 0.0% Aug 17 · 1 / 40860 = 0.0% Aug 18 · 0 / 53146 = 0.0% Aug 19 · 0 / 47983 = 0.0% Aug 20 · 1 / 63006 = 0.0%
Jun 25, 2026 57 days Aug 20, 2026

The shaded part of the chart is measured against a different set of sites. Until 8 July 2026 we only tracked launches from launch platforms; from that date we crawl the wider web as well. The share is a proportion of whatever we were tracking at the time, so it can step at that line without the technology itself changing. For a single continuous measure, switch to launch platforms.

How StackScope detects technologies

⋮ Jul 1, 2026: Adoption figures now count launches from launch platforms. Use the source view to include StackScope Discovery.

CSS Framework leaders

Tool % of launches % of category
#1 – Tailwind CSS 29.09% 88.64%
#2 – Bootstrap 4.23% 12.89%
#3 – UIkit 0.04% 0.11%
#4 ▼1 Layui 0.02% 0.08%
#5 ▼2 PicoCSS 0.01% 0.02%
…
#10 W3.CSS Current page <0.01% <0.01%

Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any CSS Framework tool. All 18 in CSS Framework →

Often used with

Tool Launches
Google Search Console 5
Google Fonts 5
Google Workspace 4
Apache 4
AWS CloudFront 4

Tools most often detected on the same launches as W3.CSS.

Recent launches we can show

5 of the 19 sites using W3.CSS are product launches we list individually. The other 14 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one. How StackScope Discovery works

Screenshot of Law Prep Tutorial, a launch using W3.CSS Law Prep Tutorial Aug 20, 2026 · score 7.1 India Education Screenshot of Law Prep Tutorial, a launch using W3.CSS Law Prep Tutorial Aug 9, 2026 · score 7.1 Education Screenshot of LPTedtech, a launch using W3.CSS LPTedtech Aug 6, 2026 · score 7.1 Education Screenshot of BlkSeal, a launch using W3.CSS BlkSeal Jul 9, 2026 · score 8.7 Screenshot of Law Prep Tutorial, a launch using W3.CSS Law Prep Tutorial Jul 2, 2026 · score 6.9 Education

The StackScope API serves all 19 sites using W3.CSS, filterable and exportable, from £15 a month.

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