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Open Standards — 18 websites ranked by shared content topics, category and on-page relevance.

Each result shows its full tech stack, contacts and AI-policy — not just a name · Browse all sites in Programming Languages →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
python.org ↗	47 match 18 shared linkers · same topic	Welcome to Python.org	en	programming-languages	robotsllmsaihumans	emailphone	none
php.net ↗	37 match 11 shared linkers · same topic	PHP	en	programming-languages	robotsllmsaihumans	emailphone	none
react.dev ↗	35 match 10 shared linkers · same topic	React	en	programming-languages	robotsllmsaihumans	emailphone	none
nodejs.org ↗	32 match 9 shared linkers · same topic	Node.js — Run JavaScript Everywhere	en	programming-languages	robots llmsaihumans	emailphone	none
nextjs.org ↗	19 match 8 shared linkers · same topic	Next.js by Vercel - The React Framework	en	web-development	robots llmsaihumans	emailphone	none
stackoverflow.com ↗	18 match 10 shared linkers · same topic	Newest Questions - Stack Overflow	en	technology-and-computing WooCommerce	robotsllmsaihumans	emailphone	none
github.io ↗	16 match 14 shared linkers · same topic	GitHub Pages \| Websites for you and your projects, hosted directly from your GitHub repository. Just edit, push, and your changes are live.	en	web-development	robotsllmsaihumans	emailphone	none
cloudflare.com ↗	16 match 8 shared linkers · same topic	Cloudflare: Build for the agent era	en	cloud-computing	robotsllmsaihumans	emailphone	none
opencodez.com ↗	70 match shared topic	opencodez \| develope \| share \| reuse	en	programming-languages WordPress WooCommerce	robotsllmsaihumans	emailphone	none
openmp.org ↗	70 match shared topic	Home - OpenMP	en	programming-languages WordPress	robotsllmsaihumans	emailphone	none
foojay.io ↗	70 match shared topic	Free Java & OpenJDK Info for Daily Java Usage \| foojay	en	programming-languages WordPress	robotsllmsaihumans	emailphone	none
typescriptlang.org ↗	55 match shared topic	TypeScript: JavaScript With Syntax For Types.	en	programming-languages	robotsllmsaihumans	emailphone	none
go.dev ↗	55 match shared topic	The Go Programming Language	en	programming-languages	robotsllmsaihumans	emailphone	none
golang.org ↗	55 match shared topic	The Go Programming Language	en	programming-languages	robotsllmsaihumans	emailphone	none
raspberrypi.org ↗	55 match shared topic	Teach, learn, and make with the Raspberry Pi Foundation	en	programming-languages	robotsllmsaihumans	emailphone	none
codeforces.com ↗	55 match shared topic	Codeforces	en	programming-languages	robotsllmsaihumans	emailphone	full · 14
reactnative.dev ↗	55 match shared topic	React Native · Learn once, write anywhere	en	programming-languages	robotsllmsaihumans	emailphone	none
kotlinlang.org ↗	55 match shared topic	Kotlin Programming Language	en	programming-languages	robotsllmsaihumans	emailphone	none

How the match score works

Each match is a 0–100 similarity score — the higher it is, the more two sites resemble one another. It’s computed automatically from our own crawl data (never from what a site says about itself) by combining several independent signals, so a high score means several of them point the same way:

shared topics how many of the same fine‑grained content topics (IAB sub‑categories) both sites cover — the main signal.
same category whether they sit in the same business / industry category.
content & title how closely their titles and page descriptions line up in wording and meaning.

No single signal decides the result — they’re blended together. Treat the score as a way to rank candidates rather than an absolute percentage; the chips on each result show which signals contributed.