Today in internet shenanigans. Checking certificate transparency logs for in-addr.arpa.
https://crt.sh/?q=in-addr.arpa
Two types of entries: First, a lot out Cloudflare SSL. Fair.
Second type of entry: a certificate for German drugstore chain DM, containing Cloudflare's 1.1.1.1.in-addr.arpa????
@mwl Hmmm....
webdns=> select serial from zone;
serial
------------
26906
25975
252888627
2007102006
28697
26886
22213
184
45238
253322835
(10 rows)
Ok, that fits. The one zone that actually used the data-based scheme (probably because it was imported from a manually maintained zone file) is an empty in-addr.arpa zone that hasn't changed in 17 years.
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