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Free Reference - Fast Reference for Developers — 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
wierdx.net ↗	69 match 1 shared topics	WierdX — Programming Reference & Dev Tutorials	en	programming-languages	robotsllmsaihumans	emailphone	none
mschmitt.org ↗	69 match 1 shared topics	Michael Schmitt \| Software Developer	en	programming-languages	robotsllmsaihumans	emailphone	none
whyruby.info ↗	68 match 1 shared topics	Why Ruby? — Discover why Ruby continues to be a beloved language for developers worldwide	en	programming-languages	robotsllmsaihumans	emailphone	none
beginnersoftwaredeveloper.com ↗	67 match 1 shared topics	Home - BeginnerSoftwareDeveloper	en	programming-languages Weebly WooCommerce	robotsllmsaihumans	emailphone	partial · 8
akrishnatry.com ↗	67 match 1 shared topics	Arjun Krishnatry \| CS Student & Developer	en	programming-languages	robotsllmsaihumans	emailphone	none
mbrindustrial.com ↗	67 match 1 shared topics	Tasso Z. — Python Developer	en	programming-languages	robotsllmsaihumans	emailphone	none
marcet.cat ↗	67 match 1 shared topics	Marc Marcet - Python Developer	en	programming-languages	robotsllmsaihumans	emailphone	none
sumitpaudel.tech ↗	66 match 1 shared topics	Sumit Paudel — Computer Science Student & Developer	en	programming-languages	robotsllmsaihumans	emailphone	none
dvdphobia.dev ↗	66 match 1 shared topics	DVDphobia \| Developer & Builder	en	programming-languages	robotsllmsaihumans	emailphone	partial · 8
aliduman.tech ↗	66 match 1 shared topics	Ali Duman \| Android Developer	en	programming-languages	robotsllmsaihumans	emailphone	none
aesterial.xyz ↗	66 match 1 shared topics	Aesterial - Development Team	en	programming-languages	robotsllmsaihumans	emailphone	none
msdev.pro ↗	66 match 1 shared topics	MSDev.pro blog \| Developer news	en	programming-languages WordPress	robotsllmsaihumans	emailphone	none
deanwalls.com ↗	66 match 1 shared topics	Dean Walls - Full-stack Java Developer \| Portfolio	en	programming-languages	robotsllmsaihumans	emailphone	none
lyriko.space ↗	66 match 1 shared topics	Programiz: Learn to Code for Free	en	programming-languages Drupal	robotsllmsaihumans	emailphone	none
mayzelf.xyz ↗	66 match 1 shared topics	mayzelf — Developer & Community Lead	en	programming-languages	robotsllmsaihumans	emailphone	none
elminthespring.org ↗	66 match 1 shared topics	Elm in the Spring Conference 2020	United States~ en	programming-languages	robotsllmsaihumans	emailphone	none
nchaugen.com ↗	66 match 1 shared topics	nchaugen/blog \| Test-driven developer	en	programming-languages	robotsllmsaihumans	emailphone	none
andrecentov.space ↗	66 match 1 shared topics	Andrew Protsenko \| Backend Go Developer	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.