Websites Using Cloudflare

Cloudflare is a global content delivery network (CDN) and web security platform that provides DDoS protection, performance optimization, and DNS services. It routes website traffic through its distributed network to improve speed and protect against attacks.

Categories: CDN, Reverse proxy

Official website: https://www.cloudflare.com

173001 websites using Cloudflare

Cloudflare is ranked #1 of 103 in CDN by website adoption.

CDN alternatives ranked by popularity

Fastly — 46,244 websites
cdnjs — 40,110 websites
jsDelivr — 34,331 websites
Google Hosted Libraries — 22,129 websites
Amazon CloudFront — 17,886 websites
jQuery CDN — 13,902 websites
Unpkg — 10,411 websites
Akamai — 6,048 websites
Google Cloud CDN — 5,588 websites
Vercel Edge Network — 4,516 websites

Technologies commonly used with Cloudflare

HTTP/3 — 74% co-occurrence
Open Graph — 52% co-occurrence
PHP — 39% co-occurrence
Schema.org — 35% co-occurrence
HSTS — 32% co-occurrence
Google Analytics — 32% co-occurrence
Cloudflare WAF — 30% co-occurrence
Google Analytics 4 — 29% co-occurrence

How WhatStack detects Cloudflare

WhatStack detects Cloudflare by analyzing HTTP headers, HTML source code, JavaScript globals, meta tags, cookies, DNS records, and ads.txt entries using signature-based pattern matching across 10 different analyzers.

Frequently Asked Questions

What is Cloudflare?: Cloudflare is a global content delivery network (CDN) and web security platform that provides DDoS protection, performance optimization, and DNS services. It routes website traffic through its distributed network to improve speed and protect against attacks.
How many websites use Cloudflare?: WhatStack has detected Cloudflare on 173001 websites in our database.
How do you detect Cloudflare?: We analyze HTTP headers, HTML source, JavaScript globals, meta tags, cookies, DNS records, and ads.txt entries to identify Cloudflare with high accuracy using signature-based pattern matching.