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Life & fun · alternatives · 2026

Certificate Transparency Log Monitor monitors domains for SSL certificate issues including expiration, revocation, and unauthorized issuance. It watches Certificate Transparency logs and sends alerts when suspicious… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Certificate Transparency Log Monitor launched in 2016; newer entries below may have overtaken it.

  1. 1CS
  2. 2

    Monitor domain settings, SSL certificates, expiration dates

    2022 · observe.domains · its alternatives →

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    A monitoring service for Certificate Transparency. Contribute to technion/ct_advisor development by creating an account on GitHub.

    2015 · github.com · its alternatives →

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    Domain Monitoring Made Easy

    2018 · webmaster.ninja · its alternatives →

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    Automated SSL certificate monitoring with expiration alerts, Certificate Transparency discovery, and Slack/Discord/Teams notifications. Prevent downtime with continuous monitoring.

    2022 · haveibeenexpired.com · its alternatives →

  7. 7

    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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    Free tools for SSL/TLS certificate transparency search, configuration analysis, and security monitoring.

    Jan 2026 · certradar.net · 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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    No more expired SSL certificates

    2021 · haveibeenexpired.com · its alternatives →

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    Monitoring for websites, APIs, and cron jobs

    2024 · webgazer.io · its alternatives →

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    Hello 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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    Dashboard for ssl certificates. Contribute to FalkoJoseph/certificate-dashboard development by creating an account on GitHub.

    2016 · github.com · its alternatives →

  14. 14AD
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    Monitor SSL certs and avoid unexpected downtime

    2025 · its alternatives →

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    Monitoring SSL Certificates to Prevent Expiry

    2024 · watchmyssl.com · its alternatives →

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    SimpleOps▲297

    Keep your websites up and never lose customers

    2020 · simpleops.io · its alternatives →

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    SSL Monitor: SSL Certificate Expiry Monitoring

    2025 · sslmonitor.es · its alternatives →

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    Nodeify▲72

    Website SSL certificate monitoring

    2020 · its alternatives →

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    Get real-time alerts for your SSL expiry

    2022 · its alternatives →

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    An hourly updated list of subdomains gathered from certificate transparency logs - internetwache/CT_subdomains

    2018 · github.com · its alternatives →

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    Free SSL monitoring app for macOS

    2023 · its alternatives →

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    Free way to identify SSL configuration issues

    2019 · magenticians.com · its alternatives →

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    Monitor everything about your website

    2021 · 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 →