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Cert Spotter - Certificate Transparency Monitor - Detect Security and Availability Problems — 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
a2as.org ↗	68 match 1 shared topics	A2AS Framework for AI Agent Security and Certification	en	information-and-network-security	robotsllmsaihumans	emailphone	none
sslmate.com ↗	67 match 1 shared topics	SSLMate - Acquire and Monitor SSL Certificates	en	information-and-network-security	robotsllmsaihumans	emailphone	none
cspwatch.com ↗	66 match 1 shared topics	CSPWatch - Simple Content Security Policy Monitoring	en	information-and-network-security	robotsllmsaihumans	emailphone	none
herooverhardware.com ↗	66 match 1 shared topics	EmberOT \| Industrial Cybersecurity and Asset Monitoring	en	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
sslvigil.com ↗	66 match 1 shared topics	SSLVigil - Automated SSL Certificate Monitoring	en	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
stablessl.com ↗	66 match 1 shared topics	StableSSL - SSL certificate monitoring made simple	en	information-and-network-security	robotsllmsaihumans	emailphone	none
bro-ids.com ↗	66 match 1 shared topics	The Zeek Network Security Monitor	en	information-and-network-security WordPress WooCommerce	robotsllmsaihumans	emailphone	none
devdefender.net ↗	65 match 1 shared topics	DevDefender: Dev Environment Security Monitoring	en	information-and-network-security	robotsllmsaihumans	emailphone	none
cybersecuritymaturitymodelcertification.com ↗	65 match 1 shared topics	Cybersecurity Maturity Model Certification (CMMC) - Training Courses \| PECB	en	information-and-network-security WordPress WooCommerce	robotsllmsaihumans	emailphone	none
hexssl.com ↗	65 match 1 shared topics	HEXSSL - Cheap SSL Certificates – LEI Codes – Website Security Solutions	en	information-and-network-security WordPress WooCommerce	robotsllmsaihumans	emailphone	partial · 8
sslmonitor.com ↗	65 match 1 shared topics	SSL Certificate Monitoring \| Expiry Alerts & Certificate Management	en	information-and-network-security	robotsllmsaihumans	emailphone	none
resssl.com ↗	65 match 1 shared topics	ReSSSL \| SSL Certificate Monitoring for Multi-Tenant Teams	en	information-and-network-security	robotsllmsaihumans	emailphone	none
sslop.com ↗	65 match 1 shared topics	SSLOP — SSL Certificate Monitoring & Lifecycle Management	en	information-and-network-security	robotsllmsaihumans	emailphone	none
sslmosquito.com ↗	65 match 1 shared topics	SSL Mosquito \| Catch your SSL Certificate problems before they bite!	en	information-and-network-security	robotsllmsaihumans	emailphone	none
stackcracker.com ↗	65 match 1 shared topics	StackCracker — Elite Cybersecurity Certification	en	information-and-network-security	robotsllmsaihumans	emailphone	none
sshmonitor.com ↗	65 match 1 shared topics	SSH Monitoring \| Real-time Security Alerts & Activity Tracking	en	information-and-network-security	robotsllmsaihumans	emailphone	none
startgetagency.com ↗	65 match 1 shared topics	Agency Cybersecurity \| Security and Compliance Team	en	information-and-network-security	robots llmsaihumans	emailphone	none
startagencycomply.com ↗	65 match 1 shared topics	Agency Cybersecurity \| Security and Compliance Team	en	information-and-network-security	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.