Life & fun · alternatives · 2026
24 alternatives to Hourly updated list of subdomains from CT logs
An hourly updated list of subdomains gathered from certificate transparency logs - internetwache/CT_subdomains
This is a tool that provides an hourly updated list of subdomains extracted from Certificate Transparency logs. It monitors CT logs to identify newly discovered subdomains and maintains a regularly refreshed database.… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier. Hourly updated list of subdomains from CT logs launched in 2018; newer entries below may have overtaken it.
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2016 · sslmate.com · its alternatives →
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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 · its alternatives →
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Notify.domainsfree tier, from $2/mo▲322Know the moment a domain opportunity appears
Aug 2026 · notify.domains · its alternatives →
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Monitoring for websites, APIs, and cron jobs
2024 · webgazer.io · its alternatives →
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aliveDomain▲256Advanced domain tracking tool for individuals and agencies
2021 · alivedomain.com · its alternatives →
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Kit.domains▲198Hello Hacker News community, We are excited to announce the launch of KIT.DOMAINS, our new tool designed to simplify the management and monitoring of domains. KIT DOMAINS is a convenient and reliable solution for tracking the status of your domains and SSL certificates. With KIT DOMAINS, you will receive timely notifications about expirations and emerging issues, ensuring your sites remain operational and secure. Key features: - Expiration Tracking: Monitor the expiration dates of your domains to prevent accidental lapses. - SSL Certificate Monitoring: Keep your SSL certificates up-to-date…
2024 · kit.domains · its alternatives →
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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....
2024 · firehose.lol · its alternatives →
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Discover and enumerate all subdomains associated with a website, including those not publicly advertised. Use this tool to conduct thorough security assessments, validate your organization's digital footprint, or enhance your reconnaissance capabilities for penetration testing and bug bounty hunting
2024 · github.com · its alternatives →
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The fastest all-in-one domain & website monitoring tool
2022 · domain-monitor.io · its alternatives →
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Momento▲140A powerful platform to help you monitor your domains
2020 · domexus.com · its alternatives →
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Your ultimate solution for seamless domain management
2023 · leoai.gumroad.com · its alternatives →
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Monitor domain settings, SSL certificates, expiration dates
2022 · observe.domains · its alternatives →
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Hello! I'm learning Rust and also information security, so what better way to learn than to put a tool together practicing both skills? I've tried to use a couple of different tools for subdomain enumeration (part of the Discovery-party when it comes to penetration testing), but none of them were very fast, even if the DNS resolver I pointed them towards is, so I wrote my own tool that leverages concurrency to check a lot of subdomains, fast! It's written in Rust, main parts being using Tokio and async_channels, and I think it works good enough for a first release. I wanted to get recursive…
2022 · github.com · its alternatives →
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2015 · domainwatcher.io · its alternatives →
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2023 · v01.io · its alternatives →
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We have finally launched Domfetch! Domfetch is a free platform to find expired domains. Users can search through domains that are (almost) available for registration. We enrich these domains with extra data to help users find valuable domains. We created this tool because we found the (free) alternatives lacking certain data, such as Moz, Alexa history (we check 5 years of data) & search volume history over a period of 1 year. Let us know what you think! More features and tld's will be added in the near future.
2022 · domfetch.com · its alternatives →
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Subscan is a Go-based CLI tool that helps bug bounty hunters and pentesters with subdomain discovery (passive and brute-force), scoring (HTTP/TLS/CNAME), and misconfig probes (takeovers, open .envs, S3 buckets, etc). Output formats include JSON/CSV/HTML/Markdown. GitHub: https://github.com/omerimzali/subscan Looking for feedback!
2025 · github.com · its alternatives →
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Free tools for SSL/TLS certificate transparency search, configuration analysis, and security monitoring.
Jan 2026 · certradar.net · its alternatives →
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I built a CLI to benchmark DNS resolvers after discovering DNS was adding 300ms to my API requests. v0.3.0 just released with new features: compare: Test single domain across all resolvers top: Rank resolvers by latency/reliability/balanced monitor: Continuous tracking with threshold alerts 1,400+ downloads in first week. Quick start: pip install dns-benchmark-tool dns-benchmark compare --domain google.com CLI stays free forever. Hosted version (multi-region, historical tracking, alerts) coming Q1 2026. GitHub: https://github.com/frankovo/dns-benchmark-tool…
Nov 2025 · github.com · its alternatives →
- 24CL
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 · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →