As of today I’m getting SSL_ERROR_BAD_CERT_DOMAIN
when I go to markets.bisq.network via the browser (Firefox in my case).
Sending a GET request to the API I get:
Error [ERR_TLS_CERT_ALTNAME_INVALID]: Hostname/IP does not match certificate's altnames: Host: markets.bisq.network. is not in the cert's altnames: DNS:node201.mempool.space
So validity is not an issue, but something happened with the altnames.