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MARC: Mailing list ARChives — 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 Technology And Computing →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
openbsd.org ↗	112 match 23 shared linkers · same topic	OpenBSD	en	operating-systems	robotsllmsaihumans	emailphone	none
kernel.org ↗	36 match 8 shared linkers · same topic	The Linux Kernel Archives	en	operating-systems	robotsllmsaihumans	emailphone	none
opensource.org ↗	32 match 8 shared linkers · same topic	Open Source Initiative – The steward of the Open Source Definition, setting the foundation for the Open Source Software ecosystem.	en	software-and-applications WordPress Reaction Commerce	robotsllmsaihumans	emailphone	none
github.io ↗	20 match 20 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
fidus.com ↗	65 match shared topic	Fidus Systems – Specialists in Electronic System Development	en	technology-and-computing WordPress	robotsllmsaihumans	emailphone	none
hackaday.com ↗	55 match shared topic	Hackaday \| Fresh Hacks Every Day	en	technology-and-computing WordPress	robotsllmsaihumans	emailphone	none
tenor.com ↗	55 match shared topic	Tenor GIF Keyboard - Bring Personality To Your Conversations	en	technology-and-computing	robotsllmsaihumans	emailphone	none
calculator.now ↗	55 match shared topic	Free Online Calculators \| Calculator.now	en	computing	robotsllmsaihumans	emailphone	none
cultofmac.com ↗	55 match shared topic	Cult of Mac \| Your source for the latest Apple news, rumors, analysis, reviews, how-tos and deals.	en	technology-and-computing WordPress	robotsllmsaihumans	emailphone	none
riscv.org ↗	55 match shared topic	Home - RISC-V International	en	technology-and-computing WordPress Shopify	robots llmsaihumans	emailphone	none
tinyportal.net ↗	55 match shared topic	home page	en	technology-and-computing	robotsllmsaihumans	emailphone	none
kdd.org ↗	55 match shared topic	SIGKDD	en	technology-and-computing	robotsllmsaihumans	emailphone	none
majorgeeks.com ↗	55 match shared topic	MajorGeeks.Com - MajorGeeks	en	computing	robotsllmsaihumans	emailphone	none
opseasyone.com ↗	55 match shared topic	重庆源亨网络信息技术有限公司	en	computing	robotsllmsaihumans	emailphone	none
ouyudnf.com ↗	55 match shared topic	吉林省偶遇网络科技有限公司	en	computing	robotsllmsaihumans	emailphone	none
junhuawangluo.com ↗	55 match shared topic	石家庄俊华网络科技有限公司	en	technology-and-computing	robotsllmsaihumans	emailphone	none
my-aac.org ↗	55 match shared topic	MyAAC – MyAAC is website for your OTS	en	technology-and-computing WordPress	robotsllmsaihumans	emailphone	none
scientific-solutions.com ↗	55 match shared topic	Scientific Solutions Inc. - Data Acquisition and Instrumentation	en	computing	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.