Perhaps I&#x27;m ignorant, but I don&#x27;t see how the <i>LE</i> guys would be annoyed about thousands of requests for TLS certs from a single user. The system <i>is</i> automated, after all. :)<p>&gt; + you might not want to publish a list of all valid ones.<p>I assume that you mention this to illustrate a scenario where certs with a bunch of SANs is not a solution to the problem? If you weren&#x27;t, does LE do something like publishing a list of all of the domains for which they have issued certs?