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certSign Certification Authority — 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
myauthid.com ↗	73 match 1 shared topics	MyAuthID — Verification Authority	en	information-and-network-security	robotsllmsaihumans	emailphone	none
msctrustgate.com ↗	72 match 1 shared topics	Trustgate – Licensed Certification Authority in Malaysia	en	information-and-network-security	robotsllmsaihumans	email phone	none
motsa.tech ↗	70 match 1 shared topics	MOTSA — Document Certification API	en	information-and-network-security	robotsllmsaihumans	emailphone	none
dcertgroup.com ↗	70 match 1 shared topics	DCG - Digital Certification Group	en	information-and-network-security	robotsllmsaihumans	emailphone	none
zotifications.com ↗	69 match 1 shared topics	Zotifications	en	information-and-network-security	robotsllmsaihumans	emailphone	partial · 8
primessl.com ↗	69 match 1 shared topics	PrimeSSL - Affordable Certificate Authority for DV Certificates	en	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
lbmccertificationservices.com ↗	69 match 1 shared topics	LBMC Certification Services, LLC \| Security Certification Audits	en	information-and-network-security WordPress	robots llmsaihumans	emailphone	none
cyberessentials.guide ↗	69 match 1 shared topics	Home - Cyber Essentials Certification	en	information-and-network-security WordPress WooCommerce	robotsllmsaihumans	emailphone	none
myukcert.com ↗	68 match 1 shared topics	myukcert Certificate Access	en	information-and-network-security	robotsllmsaihumans	emailphone	none
dnacertificadora.com.br ↗	68 match 1 shared topics	DNA CERTIFICADORA	Brazil en	information-and-network-security	robotsllmsaihumans	emailphone	none
alpineauthentication.com ↗	68 match 1 shared topics	Alpine Authentication AG	en	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
ialglobalconsulting.com ↗	68 match 1 shared topics	ISO Certification & Cyber Security \| IATF 16949 Certification	United States~ en	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
caroot.info ↗	68 match 1 shared topics	The CA root - the open root for all Certification Agencies	en	information-and-network-security	robotsllmsaihumans	emailphone	none
caroot.net ↗	68 match 1 shared topics	The CA root - the open root for all Certification Agencies	en	information-and-network-security	robotsllmsaihumans	emailphone	none
caroot.org ↗	68 match 1 shared topics	The CA root - the open root for all Certification Agencies	en	information-and-network-security	robotsllmsaihumans	emailphone	none
2-rik.com ↗	68 match 1 shared topics	Authorization	en	information-and-network-security	robotsllmsaihumans	emailphone	none
5ccure.com ↗	68 match 1 shared topics	Authorization	en	information-and-network-security	robotsllmsaihumans	emailphone	none
7holmov.com ↗	68 match 1 shared topics	Authorization	en	information-and-network-security	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.