# LetsEncrypt CAA Bug Affected Domains and Certificates Checker Tool

**URL:** <https://onehack.st/t/letsencrypt-caa-bug-affected-domains-and-certificates-checker-tool/73085>\
**Category:** Tools & Scripts\
**Tags:** hacking, privacy, cracking\
**Created:** [March 11, 2020, 7:11pm UTC](https://onehack.st/t/letsencrypt-caa-bug-affected-domains-and-certificates-checker-tool/73085 "2020-03-11T19:11:00Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Parizaad](https://onehack.st/user_avatar/onehack.st/parizaad/32/174871_2.png) [@Parizaad](https://onehack.st/u/Parizaad)\
**Post date:** [March 11, 2020, 7:11pm UTC](https://onehack.st/t/letsencrypt-caa-bug-affected-domains-and-certificates-checker-tool/73085/1 "2020-03-11T19:11:00Z")

</div>

### LetsEncrypt CAA bug revocation check

_Check your domain certificate against Latest CAA bug._

 ![image](https://onehack.st/uploads/default/original/3X/b/d/bd86635abcd63b32f1575a790950b3086caa9453.png)

This tool will allow you to determiante if you need to replace your SSL / TLS certifiate / check if your domain or certificate serial number has been affected by CAA bug and needs to be replaced to avoid interuptions. At the time of writting `23.659.138` domains are parsed from the database.

> If you are using letsencrypt, be sure to check your domain and certificate serials. 🕸🔍

You can read more

[Official LetsEncrypt Blog](https://community.letsencrypt.org/t/2020-02-29-caa-rechecking-bug/114591)

[SERVICE STATUS PAGE.](https://letsencrypt.status.io/)

- [https://www.certic.info/tools-letsencryptrenewcheck.php](https://www.certic.info/tools-letsencryptrenewcheck.php)