What changed on the internet 2026-09-17

2026-09-17 · top 20 of at least 45 by significance · 809,754 tracked domains

Reachability changes

Up, down, and blocked edges, re-probed before we claim them.

Full report

DNS provider changes

Resolution moved to a different operator.

Full report

Email provider changes

The mail now routes through a different operator.

Full report

Certificate and TLS changes

Issuer switches, rotations, and expiries.

Full report
facebook.com Certificate EXPIRED with no renewal (was valid until 2021-07-31T12:00:00.000Z)
18:15 UTC · verify

Email authentication changes

SPF, DKIM, and DMARC posture moves.

CONTINUOUS INTERNET TELEMETRY24H DRIFT6,536 material changesacross 3,629 domains · 24h to ~2h ago · +1,526 vs yesterdayROTATION67 domains moved DNS from koaladns.com to magpiedns.com, 63 moved backa rotation loop, not a migration · 24hEMAIL DRIFT1 domain switched email providertop destination dovpc.comNOW952 curated domains not reachable-55 vs yesterdaySITE ERRORS17,855 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 91,153 sites429 rate-limit / 403 bot-block, a posture signal