Increasing limit


I’m the owner of the subdomain
Can you please increase the limit?!


What’s the specific limit you are running in to ? I’m guessing ( without any detailed info) that it’s related to the domain (which I assume you don’t own), so any decision about limits, or being on the PSL would need to be handled though them as your top level domain.

You may be better with your own domain name ( you can always get free ones if cost is an issue - or


No I'm not the owner of but of the subdomain

I only see this error:

Certificate signature failed. If you supplied your own CSR make sure the domains on it match what you put on SSLForFree. If there is a rate limiting error at the end of this paragraph certificates per Domain is currently 5 per 7 days. Try asking Lets Encrypt to increase the limit or wait 7 days. Rate limits should increase in the near future. { "type": "urn:acme:error:rateLimited", "detail": "Error creating new cert :: Too many certificates already issued for:", "status": 429 }

So I guess the limit is 5.

The current limits are at Rate Limits - Let's Encrypt - and 20 certificates per Registered Domain per week is the limit you are hitting for

The main limit is Certificates per Registered Domain (20 per week). A registered domain is, generally speaking, the part of the domain you purchased from your domain name registrar. For instance, in the name, the registered domain is In, the registered domain is We use the Public Suffix List to calculate the registered domain.

Personally I'd suggest getting your own domain name.

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thanks for fast answering.

The problem is: I’m a pupil, so a domain with some costs is not relevant for me. Secound, selfhost is my DynDNS service, too and selfhost is once service I know, that offer all features that I need for free. So is there no possibility to increase the limit?


It’s possible for the rate limits to be adjusted, but only for the domain owner. In this case, the rate limit that affects you is on the domain level, and since you don’t own that (entire) domain, that won’t be an option for you.

There are some free TLDs out there you can use, like .tk. In combination with Cloudflare (or any other free DNS service) and a CNAME record pointing to your existing dynamic DNS domain, you should be able to do this for free.

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You can get domain names for free - try or

There are plenty of other, free dynamic DNS systems, to easily use for your own domain.

The limit is on and you don't own, so no, you can't change the limits on

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