  The Internet Engineering Task Force is standardizing new DNS resource
records, namely SVCB and HTTPS. Both records inform clients about endpoint and
service properties such as supported application layer protocols, IP address
hints or Encrypted Client Hello (ECH) information. Therefore, they allow
clients to reduce required DNS queries and potential retries during connection
establishment and thus help to improve the quality of experience and privacy of
the client. The latter is achieved by reducing visible meta-data, which is
further improved with encrypted DNS and ECH.
  The standardization is in its final stages and companies announced support,
e.g., Cloudflare and Apple. Therefore, we provide the first large-scale
overview of actual record deployment by analyzing more than 400 M domains. We
find 3.96 k SVCB and 10.5 M HTTPS records. As of March 2023, Cloudflare hosts
and serves most domains, and most records only contain Application-Layer
Protocol Negotiation (ALPN) and IP address hints. Besides Cloudflare, we see
adoption by a variety of authoritative name servers and hosting providers
indicating increased adoption in the near future. Lastly, we can verify the
correctness of records for more than 93 % of domains based on three application
layer scans.
