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The Perl Programming Language - www.perl.org — 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
kotlinlang.org ↗	63 match 12 shared linkers · same topic	Kotlin Programming Language	en	programming-languages	robotsllmsaihumans	emailphone	none
mysql.com ↗	112 match 98 shared linkers · same topic	MySQL	en	databases	robotsllmsaihumans	emailphone	none
python.org ↗	110 match 100 shared linkers · same topic	Welcome to Python.org	en	programming-languages	robotsllmsaihumans	emailphone	none
pfsense.org ↗	93 match 26 shared linkers · same topic	pfSense® - World's Most Trusted Open Source Firewall	en	information-and-network-security	robotsllmsaihumans	emailphone	none
php.net ↗	81 match 96 shared linkers · same topic	PHP	en	programming-languages	robotsllmsaihumans	emailphone	none
postgresql.org ↗	72 match 54 shared linkers · same topic	PostgreSQL: The world's most advanced open source database	en	databases	robotsllmsaihumans	emailphone	none
vim.org ↗	70 match 19 shared linkers · same topic	welcome home : vim online		software-and-applications WordPress	robotsllmsaihumans	emailphone	none
proxmox.com ↗	68 match 28 shared linkers · same topic	Proxmox - Powerful open-source server solutions	en	cloud-computing Joomla	robotsllmsaihumans	emailphone	none
jquery.com ↗	58 match 27 shared linkers · same topic	jQuery	en	web-development WordPress	robotsllmsaihumans	emailphone	none
docker.com ↗	56 match 54 shared linkers · same topic	Docker: Accelerated Container Application Development	en	software-and-applications WordPress	robotsllmsaihumans	emailphone	none
r-project.org ↗	52 match 17 shared linkers · same topic	R: The R Project for Statistical Computing	en	software-and-applications	robotsllmsaihumans	emailphone	none
kernel.org ↗	52 match 22 shared linkers · same topic	The Linux Kernel Archives	en	operating-systems	robotsllmsaihumans	emailphone	none
gentoo.org ↗	51 match 13 shared linkers · same topic	Welcome – Gentoo Linux	en	operating-systems phpBB	robotsllmsaihumans	emailphone	none
freebsd.org ↗	47 match 20 shared linkers · same topic	The FreeBSD Project	en	operating-systems	robotsllmsaihumans	emailphone	none
git-scm.com ↗	46 match 30 shared linkers · same topic	Git	en	software-and-applications	robotsllmsaihumans	emailphone	none
prometheus.io ↗	43 match 9 shared linkers · same topic	Prometheus - Monitoring system & time series database	en	databases	robotsllmsaihumans	emailphone	none
mariadb.com ↗	43 match 9 shared linkers · same topic	MariaDB Enterprise Open Source Database \| MariaDB	en	databases WordPress WooCommerce	robots llmsaihumans	emailphone	none
gnome.org ↗	42 match 13 shared linkers · same topic	GNOME — An independent computing platform for everyone	en	operating-systems	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.