Hi @ohlr
thanks. Letsdebug helps in such a case.
But there was an older topic with the same idea. @schoen wrote, that there are a lot of older certbots in use.
So creating a link to a third-party tool may be a problem, if the tool isn't longer available.
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But: I think there is another solution. A new topic, pinned under Help with a list of tools with annotations. Closed, with no replies. There are a lot more tools (CT-logs, Ssllabs, Sslmate, a Mozilla Cipher check etc.).
Then it's possible to check such a third-party tool and remove it, if it's not longer active.