# ctlogs.dev — Certificate Transparency search

> These figures are automated measurements with timestamps. They are not a review, rating, grade, or recommendation.

Search Certificate Transparency logs: subdomains, TLS certificates, organizations, CAs.

- Status: Up
- Checks passed: 14 of 22
- Uptime: Not measured
- Latency: 240 ms
- Tools: 5
- Last probe: 2026-11-12T12:58:14.673Z
- Publisher: ctlogs.dev (https://mcpheartbeat.com/p/dev.ctlogs)
- Endpoint: https://mcp.ctlogs.dev/mcp
- Transport: streamable-http

## Tools

Showing 5.

- **find_subdomains**: List the hostnames found under a domain in TLS certificates: one row per hostname with the number of certificates and first/last seen dates. Covers certificates
- **get_ca**: Return one issuing CA certificate by its SHA-256 fingerprint (the issuer_ca field of get_certificate): subject, issuer, validity, parent and cross-signed certif
- **get_certificate**: Return the full record of one certificate: subject, issuer, serial number, validity, DNS names, key and signature details, the CT log entries that recorded it a
- **search_certificates**: List TLS certificates issued for a domain name: id, matching names, issuer, serial number and validity dates. By default matches the exact name; set include_sub
- **search_organization**: List TLS certificates whose subject organization matches a name, e.g. "PayPal, Inc.": id, subject common name, domains, issuer and validity dates. Covers certif

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## Links

- HTML: https://mcpheartbeat.com/s/dev.ctlogs/certificate-transparency/alternatives
- Markdown: https://mcpheartbeat.com/s/dev.ctlogs/certificate-transparency/alternatives.md
- MCP: https://mcpheartbeat.com/mcp
- API: https://mcpheartbeat.com/api/v1/servers
- Tools API: https://mcpheartbeat.com/api/v1/tools
- Server API: https://mcpheartbeat.com/api/v1/health?server=dev.ctlogs%2Fcertificate-transparency