# What 191 top websites are built with > Sitepeel measured 191 top brand sites on November 4, 2026: 76% run React, 46% Next.js, 40% Tailwind CSS. Hosting and analytics too, free CSV. Canonical page: https://sitepeel.dev/reports/what-top-websites-are-built-with-2026/ Sitepeel measured 191 top brand websites on November 4, 2026, from each public page: 76% run React, 46% run Next.js and 40% use Tailwind CSS. Cloudflare shows up on 43% and Vercel on 29%. Google Analytics is on 59%. WordPress is on just 1 site. Published: 2026-11-05 Facts and prices checked: 2026-11-04 Free website tool for this task: [Tech stack checker](https://sitepeel.dev/free-tools/built-with/index.md) (https://sitepeel.dev/free-tools/built-with/) ## In short - React is on 145 of 191 sites, and Next.js on 88 - Tailwind CSS leads styling at 40%; Radix UI leads component libraries at 18% - 49 of the 88 Next.js sites show Vercel; 39 do not - Google Analytics is on 59%, and 54% load at least one ad pixel ## The short answer Top brand websites mostly run React, and 61% of those run Next.js. Measured on November 4, 2026, from the public page, with 191 brands in the sample. 65 sites show a site builder or CMS: Contentful is on 20, Sanity 12, Webflow 9, Framer 6 and WordPress 1. ## What frameworks do top websites use? React is on 76% and Next.js on 46%; every Next.js site counts toward React too. Of the 88 Next.js sites, 63 are on version 16. We found no JavaScript framework on 12 sites. JavaScript frameworks and libraries, 191 sites, November 4, 2026 | Framework | Sites | | --- | --- | | React | 145 (76%) | | Next.js | 88 (46%) | | React Router | 17 (9%) | | jQuery | 17 (9%) | | Preact | 13 (7%) | | Lit | 12 (6%) | | Astro | 10 (5%) | | Vue.js | 8 (4%) | ## What UI libraries and styling do they use? Tailwind CSS is the clear lead, and it depends on who a site sells to: 28 of 47 developer tools use it, against 0 of 13 media and consumer apps. Components a site wrote itself don't show up here, so these shares are a floor. Styling and component libraries, 191 sites, November 4, 2026 | Library | Kind | Sites | | --- | --- | --- | | Tailwind CSS | Styling | 76 (40%) | | Radix UI | Components | 35 (18%) | | Emotion | Styling | 20 (10%) | | CSS Modules | Styling | 19 (10%) | | styled-components | Styling | 11 (6%) | | shadcn/ui | Components | 8 (4%) | | React Aria | Components | 6 (3%) | | Headless UI | Components | 5 (3%) | | Bootstrap | Both | 3 (2%) | | MUI | Components | 3 (2%) | ## Where are top websites hosted? Cloudflare appears on 43%, Vercel on 29% and Amazon CloudFront on 20%. Cloudflare and CloudFront often sit in front of a host we can't see, so read them as "in the path", not "hosted by". 39 Next.js sites show no sign of Vercel. Hosting and CDN, 191 sites, November 4, 2026 | Service | Sites | | --- | --- | | Cloudflare | 82 (43%) | | Vercel | 55 (29%) | | Amazon CloudFront | 39 (20%) | | Google Cloud | 13 (7%) | | Fastly | 11 (6%) | | Netlify | 11 (6%) | ## What analytics do top brand websites use? Google Analytics leads at 59%, and Google Tag Manager is on 54%. 54% load an ad pixel, most often Google Ads (94) and Meta Pixel (68). Sentry, for tracking errors, is on 62. Tags that load after a cookie banner may be missed. Analytics, ad pixels left out, 191 sites, November 4, 2026 | Analytics tool | Sites | | --- | --- | | Google Analytics | 112 (59%) | | Cloudflare Web Analytics | 23 (12%) | | PostHog | 22 (12%) | | Microsoft Clarity | 21 (11%) | | Plausible | 18 (9%) | | Segment | 18 (9%) | | Statsig | 15 (8%) | | Vercel Web Analytics | 14 (7%) | ## How we measured We opened each brand's public page in a real browser on November 4, 2026 and ran Sitepeel's tech stack checker on it, one page per brand, usually the home page. It reads the page's code, files, response headers and cookie names. We counted finds it rated high or medium; 10 of 2264 were medium. - The library has 193 brands. pinterest.com and readymag.com turned our page reader away, so they have no data and the sample is 191 - The library leans toward tech companies, so these shares are not the whole web - Only what a public page shows: back ends, databases and private apps stay invisible - A site can use several tools in one group, so shares add up to more than 100% - We keep up to 24 finds per brand; 3 sites reached that, so a rare tag could be missing there - An independent measurement, not a statement from any brand ## Download the data and cite it The CSV has one row per brand, named, with its frameworks, styling, UI libraries, hosting, site builder, analytics, ad pixels and every other find. Free to use with credit (CC BY 4.0). Example: citation.md ``` Sitepeel (2026). What top brand websites are built with. Measured on November 4, 2026, from the public page. https://sitepeel.dev/reports/what-top-websites-are-built-with-2026/ ``` - [Download the data (CSV, 193 rows)](https://sitepeel.dev/reports/what-top-websites-are-built-with-2026/data.csv) - [How to check what a website is built with](https://sitepeel.dev/guides/what-is-a-website-built-with/index.md) - [All Sitepeel data reports](https://sitepeel.dev/reports/index.md) ## Questions and answers ### What is the most used framework on top websites? React, on 145 of the 191 top brand sites Sitepeel measured on November 4, 2026 (76%). Next.js, which is built on React, is on 88 (46%). ### How many top websites use Next.js? 88 of 191 (46%), measured on November 4, 2026 from the public page. 49 of them also show Vercel, and 39 do not. ### How many top websites use Tailwind CSS? 76 of 191 (40%). It is far more common on developer tools (28 of 47) than on media and consumer apps (0 of 13). ### How many top brand websites use WordPress? 1 of the 191 we measured: Docker. This sample is big tech and software brands. WordPress is far more common across the whole web, which we did not measure. ### Which analytics tool do top websites use most? Google Analytics, on 112 of 191 (59%). Next come Cloudflare Web Analytics (23) and PostHog (22). ### Can I use this data? Yes. The CSV is free to use with credit (CC BY 4.0). Link to this page as the source. ## Related pages - [llms.txt and AI crawlers on 193 top sites](https://sitepeel.dev/reports/llms-txt-ai-crawlers-2026/index.md): Sitepeel checked 193 top brand sites in November 2026: 58% publish an llms.txt and 11% block a named AI crawler in robots.txt. Bot-by-bot table, free CSV. - [Wappalyzer alternatives](https://sitepeel.dev/compare/wappalyzer-alternatives/index.md): Wappalyzer alternatives checked November 2026: is the extension still free, what paid plans cost, and free lookups with Sitepeel, WhatRuns and CRFT Lookup. - [BuiltWith alternatives](https://sitepeel.dev/compare/builtwith-alternatives/index.md): BuiltWith alternatives checked November 2026: free lookups of one site with Sitepeel, CRFT Lookup or WhatRuns, and lead lists from Wappalyzer, with prices.