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Certradar alternatives & similar sites

CertRadar — Never miss a cert or domain expiry — 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
certguard.app ↗	72 match 1 shared topics	CertGuard - SSL Certificate & Domain Monitoring \| Never Expire Again	en	information-and-network-security	robotsllmsaihumans	emailphone	none
certsentry.io ↗	71 match 1 shared topics	CertSentry — Never miss renewal. Never lose revenue.	en	information-and-network-security	robotsllmsaihumans	emailphone	none
certradar.net ↗	67 match 1 shared topics	SSL/TLS Security Tools - CertRadar	en	information-and-network-security	robotsllmsaihumans	emailphone	partial · 8
certifiably.io ↗	66 match 1 shared topics	Certifiably — TLS Certificate Monitoring	en	information-and-network-security	robotsllmsaihumans	emailphone	partial · 8
certwatcher.com ↗	66 match 1 shared topics	CertWatcher — Instant SSL Certificate Status	en	information-and-network-security	robotsllmsaihumans	emailphone	none
tsl-radar.com ↗	66 match 1 shared topics	TLS Radar - SSL/TLS Certificate Monitoring	en	information-and-network-security	robotsllmsaihumans	emailphone	none
tslradar.com ↗	66 match 1 shared topics	TLS Radar - SSL/TLS Certificate Monitoring	en	information-and-network-security	robotsllmsaihumans	emailphone	none
certmon.net ↗	66 match 1 shared topics	Certificate Monitor - Get notified before your SSL certificates expire	en	information-and-network-security	robotsllmsaihumans	emailphone	none
domain-trustee.ch ↗	66 match 1 shared topics	Swiss Domain Trustee AG	Switzerland en	information-and-network-security	robotsllmsaihumans	emailphone	none
domaintrustee.ch ↗	66 match 1 shared topics	Swiss Domain Trustee AG	Switzerland en	information-and-network-security	robotsllmsaihumans	emailphone	none
allsitesgreen.com ↗	66 match 1 shared topics	AllSitesGreen — Uptime, SSL & Domain Monitoring for MSPs	en	information-and-network-security	robotsllmsaihumans	emailphone	none
csrgenerator.com ↗	66 match 1 shared topics	CSR Generator \| Generate a Certificate Signing Request in seconds!	en	information-and-network-security	robotsllmsaihumans	emailphone	none
certpulse.tech ↗	66 match 1 shared topics	CertPulse — Automated SSL Certificate Monitoring	en	information-and-network-security	robotsllmsaihumans	emailphone	partial · 8
domainshark.uk ↗	65 match 1 shared topics	domainshark	United Kingdom en	information-and-network-security	robotsllmsaihumans	emailphone	none
domainshark.co.uk ↗	65 match 1 shared topics	domainshark	United Kingdom en	information-and-network-security	robotsllmsaihumans	emailphone	none
defendra.dev ↗	65 match 1 shared topics	Defendra — Domain Attack-Surface Scanner (Email + Web)	en	information-and-network-security	robots llmsaihumans	emailphone	none
certhawk.io ↗	65 match 1 shared topics	Certhawk \| Certificate Monitoring	en	information-and-network-security	robotsllmsaihumans	emailphone	none
certex.io ↗	65 match 1 shared topics	CERTEX NFT Certificate	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.