We are a medium sized webhosting provider in the UK and a feature we provide to customers is the ability to generate a temporary domain in the form of a subdomain, where the customer can use this to develop their site and move it across to a registered domain name when the development stage is complete.
An example of this is username-generatedstring.temp-dns.com.
We ran in to rate limit issues on the first day of testing LE in our environment due to the number of subdomains we have under the temp-dns.com remit and we have customers chasing us up for an answer to this.
Is there any way we can request a rate limit increase on this domain? I can confirm it’s only used for this purpose and proof of ownership can be provided if required.