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Merklemap
Find subdomains and certificates linked to a website with Merklemap search and enumeration tools.
About Merklemap
Merklemap is a web-based search tool for finding subdomains and SSL/TLS certificates linked to a website or organization. The homepage says it collects and stores Certificate Transparency data to support these searches. Listed uses include subdomain enumeration, certificate monitoring, infrastructure discovery, threat intelligence, and reconnaissance for penetration testing.
The homepage describes certificate analysis for misconfigurations, weak ciphers, and expired certificates, as well as historical subdomain and certificate data. It also describes a Search API, a Live Domains API, and a CLI for automation. Pricing is not stated on the homepage, and the page does not give specific data coverage or usage limits.
Key features
- Subdomain enumeration for a target domain
- Search of SSL/TLS certificates and Certificate Transparency data
- Certificate analysis for misconfigurations, weak ciphers, and expired certificates
- Historical subdomain and certificate data for tracking changes over time
- Search API for programmatic subdomain and certificate lookups
- Live Domains API with streams of newly discovered hostnames
Best for: Security researchers, penetration testers, and organizations reviewing their own subdomains and certificates.
Good for
- Combines subdomain enumeration with certificate transparency search in one tool
- Offers an API and a CLI for automation and custom workflows
- Includes historical data for tracking subdomain and certificate changes over time
Watch out for
- Pricing is not stated on the homepage
Merklemap at a glance
- Website
- merklemap.com
- Category
- Development › Domain, IP & DNS Lookup
- Type
- Online tool
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
Merklemap alternatives
Tools and sites you could use instead, ranked by how closely they match.
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Cloudflare DNS provides public DNS resolution and authoritative DNS services.
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SubDomainizer searches web pages, folders, and JavaScript files for subdomains and related information.
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Netlas provides search tools for internet infrastructure, including DNS, WHOIS, and IP lookups.
Domainr searches domain names and provides an API covering top-level domains.
Popular in Domain, IP & DNS Lookup
Well-known listings from the same topic.
Google Transparency Reporttransparencyreport.google.com/https/certificatesIWantMyNameiwantmyname.comRDAPclient.rdap.orgIPIP.NETwhois.ipip.netInstantDomaininstantdomainsearch.com
Merklemap FAQ
How does Merklemap get its data?
The homepage says MerkleMap collects and stores Certificate Transparency data to provide its search capabilities.
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