I understand the reasons that LetsEncrypt won't publish the IP addresses for the challenge servers. I also know about DNS-01 (which will not work for us since we need to manually update DNS with our hosting company). My suggestion is to implement a directive in the renewal configuration file to spe…

This would defeat the purpose of multi-perspective validation. The idea is that, by performing validation from many unpredictable locations around the world, we can reduce the likelihood that a local or targeted BGP hijack attack affects all of our validation perspectives, and thereby prevent the at…

Specify source country for http-01 challenge

Feature Requests

Bruce5051 April 15, 2024, 6:41pm 9

@kcolagio here is a list of DNS providers who easily integrate with Let's Encrypt DNS validation

2 Likes

Topic		Replies	Views
Alternative for allowing letsencrypt file auth connections for a geo-restricted server Feature Requests	41	352	December 17, 2024
Firewall Geoblocking and LetsEncrypt Help	13	672	March 27, 2025
Whitelist LetsEncrypt Server IPs Help	19	21213	June 14, 2024
Some challenges have failed due to geographic blocking Help	6	667	May 9, 2024
DNS name for validation endpoints Feature Requests	13	237	October 1, 2025

Specify source country for http-01 challenge

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