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Sites similar to html5sec.org

Html5Sec alternatives & similar sites

HTML5 Security Cheatsheet — 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 Information And Network Security →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
csc247.com ↗	70 match 1 shared topics	CSC Security Center	en	information-and-network-security	robotsllmsaihumans	emailphone	none
360security.me ↗	70 match 1 shared topics	360 Security	en	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
vopsecurity.org ↗	70 match 1 shared topics	VoP Security	en	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
nemosecurity.com ↗	69 match 1 shared topics	Nemo Security	en	information-and-network-security	robotsllmsaihumans	emailphone	partial · 8
lmnsecurity.com ↗	69 match 1 shared topics	Home - LMN Security	en	information-and-network-security WordPress WooCommerce	robotsllmsaihumans	emailphone	none
assisterasmus.com ↗	69 match 1 shared topics	Cyber Security	en	information-and-network-security	robotsllmsaihumans	emailphone	none
astrasec.ai ↗	69 match 1 shared topics	Astra Security	en	information-and-network-security	robotsllmsaihumans	emailphone	none
nemis.dev ↗	69 match 1 shared topics	Nemis Security	en	information-and-network-security	robotsllmsaihumans	emailphone	none
nemis.app ↗	69 match 1 shared topics	Nemis Security	en	information-and-network-security	robotsllmsaihumans	emailphone	none
nemissecurity.com ↗	69 match 1 shared topics	Nemis Security	en	information-and-network-security	robotsllmsaihumans	emailphone	none
nemis-security.com ↗	69 match 1 shared topics	Nemis Security	en	information-and-network-security	robotsllmsaihumans	emailphone	none
nemissecurity.dev ↗	69 match 1 shared topics	Nemis Security	en	information-and-network-security	robotsllmsaihumans	emailphone	none
nemissecurity.net ↗	69 match 1 shared topics	Nemis Security	en	information-and-network-security	robotsllmsaihumans	emailphone	none
in-security.eu ↗	69 match 1 shared topics	In Security Magazine	European Union en	information-and-network-security Joomla	robotsllmsaihumans	emailphone	none
ccrtsecurity.com ↗	69 match 1 shared topics	Ccrt Security \| Blog	en	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
donisgroup.com ↗	69 match 1 shared topics	DONIS SECURITY GROUP	en	information-and-network-security	robotsllmsaihumans	emailphone	none
aisec.co.uk ↗	69 match 1 shared topics	AIS IT Security	United Kingdom en	information-and-network-security Wix	robotsllmsaihumans	emailphone	none
1stopsecurity.com ↗	69 match 1 shared topics	1 Stop Security	United States~ en	information-and-network-security WordPress	robots llmsaihumans	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.