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A comment on Scaling the Let's Encrypt rate limits to prepare for a billion active TLS cert.

Re:Scaling the Let's Encrypt rate limits to prepare for a bi... by altairprime on Monday May 26, 2025 @12:46PM (#44099085)
> Conveniently, the difference between the TAT and the current time can then be returned to the subscriber in a Retry-After header, informing their client exactly how long to wait before trying again.

I hope they know to add in a small amount of anti-synchronization randomness to the exactly-calculated “retry-after” delay.

[ Parent | on HN ]
Re:Scaling the Let's Encrypt rate limits to prepare for a bi... by DivineEntropy on Wednesday June 04, 2025 @04:12PM (#44184973)
Just before it's returned to the caller: https://github.com/letsencrypt/boulder/blob/0d7ea60b2cb6fa35...
[ Parent | on HN ]