Alternatives

Products that do what Certificate Transparency Log Monitor does

1. 1CT
   Certificate Transparency Advisor – proactive alerting▲10

   2015 · github.com

2. 2LS
   Linux server monitoring web dashboard▲175

   2014 · github.com

3. 3RT
   Real-time server monitoring in your browser▲346

   2014 · scoutapp.github.io

4. 4SC
   SSL certificate dashboard▲45

   2016 · github.com

5. 5LE
   LogDNA – Easy logging in the cloud▲196

   2016 · logdna.com

6. 6MU
   Monitoror – Unified monitoring wallboard▲295

   2020 · monitoror.com

7. 7CS
   CertStream – See SSL certs as they're issued in real time▲142

   2017 · certstream.calidog.io

8. 8FC
   Free Certificate Monitoring via RSS▲120

   2024 · raphting.dev

9. 9SD
   SSL Decoder – An open-source alternative for the SSL Labs server test▲160

   2015 · tls.so

10. 10S2
    SeaLion 2 – Linux Server Monitoring, Alerting and Debugging Tool▲32

    2014 · sealion.com

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

    2017 · keychest.net

12. 12TC
    TLS cert expiration dashboard▲40

    2016 · github.com

13. 13OT
    Osint tool that finds exposed files on domains▲58

    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

14. 14AR
    Anomalous – Real-time monitoring for servers, applications, and logs▲50

    2013 · getanomalous.com

15. 15WF
    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

16. 16CC
    Cloudmarker – Cloud monitoring tool and framework▲73

    2019 · github.com

17. 17LA
    Letsencrypt (and other) certificate dashboard▲6

    2017 · keychest.net

18. 18PS
    Personal security logging software [video on site]▲13

    2017 · weagill.com

19. 19TC
    TinyCert – Certificates as a service▲46

    2014 · tinycert.org

20. 20LB
    LeanSentry - Better Monitoring for Windows Server Apps▲41

    2013 · leansentry.com

21. 21OC
    Opsmatic configuration monitoring▲20

    2014 · opsmatic.com

22. 22SS
    Simple SSL Scanner▲31

    2014 · expeditedssl.com

23. 23SC
    Simple Cron Monitoring Tool▲8

    2018 · cronhub.io

24. 24CF
    CertRadar – Find every certificate ever issued for your domain▲21

    Jan 2026 · certradar.net

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