Unfragile

sslscan is named in the request, but none of the candidate sources is sslscan's own page, so it cannot be confirmed here. The closest tools that check TLS/SSL configuration are testssl.sh 1, which audits cipher, protocol and flaw support on any port, and Qualys SSL Labs 7, an SSL/TLS testing service; TLS Radar 5 offers a free SSL scan for a hostname.

1
testssl.shtestssl.shwebsite read, tools not yet checked
A free command-line tool that checks a server's TLS/SSL ciphers, protocols and cryptographic flaws on any port, with findings rated by severity.
Website Docs
2
Qualys SSL Labsssllabs.comwebsite read, tools not yet checked
A provider of SSL/TLS and PKI testing tools and documentation for checking server TLS configuration.
Website Docs
3
TLS Radartlsradar.comfound in code, not yet checked
Runs a free, anonymous SSL/TLS scan against a hostname and returns certificate details.
Website Pricing Get started
official:MCP server · TLS Radar
for agents: scan_domain · get_scan_history · register_beacon_order

Sources

1testssl(1)testssl.sh · read 2026-10-29
5TLS Radar - SSL/TLS Certificate Monitoringtlsradar.com · read 2026-10-29
7Qualys SSL Labsssllabs.com · read 2026-10-29

For agents: the 10 actions behind this answer

· testssl(1) website read, tools not yet checked
tlsScan · Geekflare found in code, not yet checked
Scan TLS/SSL configuration of a domain
· Pp website read, tools not yet checked
Thomas Habets useful programs
· mitmproxy website read, tools not yet checked
scan_domain · tls-radar found in code, not yet checked
Run a free, anonymous SSL/TLS scan against a hostname and return certificate details. No account required.
kubescape/github-action · Kubescape verified and signed
Run Kubescape scan
· Ssllabs website read, tools not yet checked
Bringing you the best SSL/TLS and PKI testing tools and documentation.
· Nmap: the Network Mapper website read, tools not yet checked
Nmap Free Security Scanner, Port Scanner, & Network Exploration Tool. Download open source software for Linux, Windows, UNIX, FreeBSD, etc.
· pyOpenSSL 26.4.0 documentation website read, tools not yet checked
squirrelscan · squirrelscan verified and signed
squirrelscan audits websites for SEO, performance, security, accessibility, content, and structured data issues (300+ rules) and scores site health, via the squirrel CLI. Use when the user wants to check, audit, or improve a website's SEO, ranking, speed, or health, and for anything squirrelscan its

Labels are the instruments' verdict and are never changed by ranking. Agents and robots get this same answer as JSON at /api/v1/find?q=…&answer=1 and through the MCP server.