similar sites

Browse

Pricing AI Report

Tools

🚀Submit Your Site to AIPush your URL to AI search engines 🛰️AI Bot ObservatoryEvery AI crawler & who blocks it 📇AI Crawler Database900+ AI user agents + robots.txt gen ⚖️AI Crawler ComparisonCompare two AI crawlers head-to-head 💰AI Licensing / Pay-Per-CrawlWho can charge AI crawlers — Pay-Per-Crawl 🎛️AI Robots.txt Policy BuilderGoal-based robots.txt (cite me, don't train)🤖AI Crawler CheckerSee which AI bots your site blocks 🎯AI Readiness CheckerScore your site 0–100 for AI 🔗Backlink CheckerWho links to any site — free All tools →

Browse free →

Sites similar to checkssl.org

Checkssl alternatives & similar sites

checkssl - simple open source command line ssl tool — 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
4csecurity.ai ↗	67 match 1 shared topics	4C Security \| Open Source XDR & SIEM	en	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
demumuu.com ↗	66 match 1 shared topics	Demumuu \| Simple Safety Check-in	en	information-and-network-security	robotsllmsaihumans	emailphone	none
sslexpire.net ↗	66 match 1 shared topics	Bulk SSL Certificate Expiry Checker \| Free & Instant \| SSLExpire.Net	en	information-and-network-security	robotsllmsaihumans	emailphone	none
aiwinnningstrategies.com ↗	66 match 1 shared topics	The trusted source for open source \| Chainguard	en	information-and-network-security	robotsllmsaihumans	emailphone	none
algorithimdistribution.com ↗	66 match 1 shared topics	The trusted source for open source \| Chainguard	en	information-and-network-security	robotsllmsaihumans	emailphone	none
kevdb.com ↗	66 match 1 shared topics	KEV Database \| Open Source Threat Intelligence	en	information-and-network-security Joomla	robotsllmsaihumans	emailphone	none
madco.ovh ↗	66 match 1 shared topics	Passbolt \| Open source password manager for teams	en	information-and-network-security	robotsllmsaihumans	emailphone	none
memops.ovh ↗	66 match 1 shared topics	Passbolt \| Open source password manager for teams	en	information-and-network-security	robotsllmsaihumans	emailphone	none
ssl.org ↗	66 match 1 shared topics	SSL Checker	en	information-and-network-security	robotsllmsaihumans	emailphone	full · 11
sslmon.net ↗	66 match 1 shared topics	SSL Certificate Checker - Free SSL/TLS Certificate Monitor & Expiration Checker	en	information-and-network-security	robotsllmsaihumans	emailphone	none
1passbolt.com ↗	66 match 1 shared topics	Passbolt \| Open source password manager for teams	en	information-and-network-security	robotsllmsaihumans	emailphone	none
3d-ems.com ↗	66 match 1 shared topics	Passbolt \| Open source password manager for teams	en	information-and-network-security	robotsllmsaihumans	emailphone	none
dealzmedia.com ↗	66 match 1 shared topics	Passbolt \| Open source password manager for teams	en	information-and-network-security	robotsllmsaihumans	emailphone	none
gillisgoodies.com ↗	66 match 1 shared topics	Passbolt \| Open source password manager for teams	en	information-and-network-security	robotsllmsaihumans	emailphone	none
mcpfw.dev ↗	66 match 1 shared topics	mcpfw — The open-source firewall for MCP	en	information-and-network-security	robotsllmsaihumans	emailphone	partial · 8
sslforfree.com ↗	66 match 1 shared topics	SSL For Free - Free SSL Certificates in Minutes	en	information-and-network-security	robotsllmsaihumans	emailphone	none
cspwatch.com ↗	65 match 1 shared topics	CSPWatch - Simple Content Security Policy Monitoring	en	information-and-network-security	robotsllmsaihumans	emailphone	none
ssltool.org ↗	65 match 1 shared topics	SSL Checker	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.