Is this domain’s IP on a blocklist?

Check the domain’s address against public DNS blocklists.

Try cloudflare.com, github.com. One domain in, one answer out. No account needed.
CONTINUOUS INTERNET TELEMETRY24H DRIFT28,713 material changesacross 23,221 domains · 24h to ~40m agoROTATION54 domains moved DNS from magpiedns.com to koaladns.com, 54 moved backa rotation loop, not a migration · 24hREGISTRAR DRIFT4 changed registrar24hNOW555 curated domains not reachablelast probe, steadySITE ERRORS18,213 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 80,857 sites429 rate-limit / 403 bot-block, a posture signal