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xoxo.zone is one of the many independent Mastodon servers you can use to participate in the fediverse.
A community space for attendees and speakers of the XOXO Festival, held in Portland, Oregon. This Mastodon instance is community-run and is not affiliated with the past organisers of XOXO Festival.

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fishy

TIL about Certificate Transparency logs, basically every Let's Encrypt certificate you got shows up there as public information, so your subdomains are also public information.

crt.sh/ is a good tool to check that yourself.

crt.shcrt.sh | Certificate SearchFree CT Log Certificate Search Tool from Sectigo (formerly Comodo CA)
Annika Backstrom

@fishy This feels pretty significant. You could sure leak information this way

Sep 16, 2023, 05:08 PM·Public·Web
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Eloy

@annika @fishy Yeah I feel NSEC3 records became obsolete after CT. Just sign the whole zone, lol

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