Growth · alternatives · 2026

24 alternatives to CT Log Query Tool by NicSRS

Enables you to check all the SSL certs issued to ur domains.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. CT Log Query Tool by NicSRS launched in 2023; newer entries below may have overtaken it.

1. 1CS
   CertStream – See SSL certs as they're issued in real time▲142

   2017 · certstream.calidog.io · its alternatives →

2. 2
   Certificate Transparency Log Monitor▲53

   2016 · sslmate.com · its alternatives →

3. 3
   CertRadar – Find every certificate ever issued for your domain▲21

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

   Jan 2026 · certradar.net · its alternatives →

4. 4
   Free Certificate Monitoring via RSS▲120

   2024 · raphting.dev · its alternatives →

5. 5
   Kit.domains▲198

   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 →

6. 6
   Observe Domains▲78

   Monitor domain settings, SSL certificates, expiration dates

   2022 · observe.domains · its alternatives →

7. 7
   SSL Certificate Checker▲11

   Check SSL certificates across public endpoints

   Jul 2026 · apify.com · its alternatives →

8. 8
   DomainWatch▲352

   Domain Monitoring Made Easy

   2018 · webmaster.ninja · its alternatives →

9. 9
   Caddy, a cross-platform HTTP/2 web server▲208

   Caddy is a powerful, enterprise-ready, open source web server with automatic HTTPS written in Go

   2015 · caddyserver.com · its alternatives →

10. 10AD
    Automatic Discovery for Let's Encrypt Certificate Monitoring▲11

    2017 · keychest.net · its alternatives →

11. 11
    SSLreminder▲78

    Keep the business running, get reminded to extend your SSL

    2021 · sslreminder.pro · its alternatives →

12. 12SD
    SSL Decoder – An open-source alternative for the SSL Labs server test▲160

    2015 · tls.so · its alternatives →

13. 13
    Momento▲140

    A powerful platform to help you monitor your domains

    2020 · domexus.com · its alternatives →

14. 14
    Nodeify▲72

    Website SSL certificate monitoring

    2020 · its alternatives →

15. 15
    SSL Montior▲77

    Free SSL monitoring app for macOS

    2023 · its alternatives →

16. 16
    Hourly updated list of subdomains from CT logs▲10

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

    2018 · github.com · its alternatives →

17. 17
    SSL certificate dashboard▲45

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

    2016 · github.com · its alternatives →

18. 18
    Domain Comet▲88

    We monitor your domains, so you don't have to.

    2020 · its alternatives →

19. 19
    SSL Checker Tool▲84

    Free way to identify SSL configuration issues

    2019 · magenticians.com · its alternatives →

20. 20
    TLS cert expiration dashboard▲40

    A dashboard written in JavaScript & HTML to check the remaining time before a TLS certificate expires. - cmrunton/tls-dashboard

    2016 · github.com · its alternatives →

21. 21
    haveibeenexpired▲68

    No more expired SSL certificates

    2021 · haveibeenexpired.com · its alternatives →

22. 22
    Watch/filter new domains from certificate transparency logs▲7

    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 →

23. 23
    Certly▲7

    Know before your SSL, domain, or DNS breaks

    Jul 2026 · certly.dev · its alternatives →

24. 24
    Monitorly▲76

    Get real-time alerts for your SSL expiry

    2022 · its alternatives →

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 →