Alternatives
Products that do what Watch/filter new domains from certificate transparency logs does
This can be used to find phishing domains or domains matching any pattern you want if you select "custom filter." You can also connect over WebSocket at /ws and use any programming language you want. There may be duplicates because some domains are published in multiple logs. I get data from all of the logs currently included with Chrome, a list of which is available here: https://github.com/google/certificate-transparency-community....
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hey guys, wanted to show one of my side projects i just made public. the idea is basically another osint tool for pentesters and bug bounty hunters. it watches certificate transparency logs and checks newly-seen domains for exposed stuff like .env files, open .git dirs, config files, db dumps and so on, and puts whatever it finds into a searchable db. you just search a domain (or part of one) and see what's exposed. it's read-only and free. one thing i've been thinking about adding is a way to register for certain keywords and get notified when something new shows up for that search. would…
Jul 2026 · search.cerast-intelligence.com
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2017 · github.com
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2016 · sslmate.com
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Yesterday the top upvoted comment for "Why We Desperately Need a New (and Better) Google" http://news.ycombinator.com/item?id=2057772 was adding personal domain blacklists. I offered to build this if there was enough interest so here's a minimum viable product for Chrome (Firefox soon to follow): https://chrome.google.com/extensions/detail/jiicbcimbjppjbckmoknagndlhjbeohb. Your feedback is welcome!
2011
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2013 · shortdomainsearch.net
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2015 · domainwatcher.io
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2023 · v01.io
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I recently launched https://www.merklemap.com/, a tool designed to leverage Certificate Transparency logs for enhanced domain monitoring. Example query https://www.merklemap.com/search?query=example&page=1 Key features of MerkleMap: - Near real-time ingestion of CT logs - Full-string subdomain search capability - Support for an arbitrary number of wildcards in searches While the current functionality focuses on subdomain discovery, I'm planning to expand MerkleMap into a comprehensive CT log monitor over time. I'd love to hear your feedback.
2024 · merklemap.com
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2017 · domainsdb.info
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I built this after seeing multiple teams accidentally ship API keys in their frontend code. The problem: Modern web development moves fast. You're vibe-coding, shipping features, and suddenly your AWS keys are sitting in a tag visible to anyone who opens DevTools. I've personally witnessed this happen to at least 3-4 production apps in the past year alone. KeyLeak Detector runs through your site (headless browser + network interception) and checks for 50+ types of leaked secrets: AWS/Google keys, Stripe tokens, database connection strings, LLM API keys (OpenAI, Claude, etc.), JWT…
Nov 2025 · github.com
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Detect domain security issues before they hurt your business
May 2026 · domainscan.tools
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2018 · domainwatch.me
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Jan 2026 · certradar.net
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Continuous Security Monitoring for Your Domains
Jun 2026 · domainverity.com
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I found out Cloudflare has a DNS over HTTPS api via 1.1.1.1 resolver, figured I'd make a small tool out of it, as somene who keeps checking domain names for side projects which I never build, this kinda helps me look for something. It's not fully accurate, because it returns unavailable even for parked pages, which technically are available, but works for me. It just checks for A records via this endpoint https://cloudflare-dns.com/dns-query?name=${domain}&type=A Just make sure to pass this header - "application/dns-json"
2024 · supersaas.dev
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