Is this domain protected from DNS tampering?

Whether DNSSEC is on, and whether CAA limits who can issue certificates.

Try cloudflare.com, github.com. One domain in, one answer out. No account needed.
More checks:WHOIS LookupDomain ExpiryDNS Health CheckEmail Security CheckSSL Certificate CheckDNS PropagationBlacklist CheckASN LookupSubdomain Finder
CONTINUOUS INTERNET TELEMETRY24H DRIFTat least 4,260 material changesacross 1,641+ domains · 24h to ~5h ago · a floor, last measured 5h agoROTATION57 domains moved DNS from kirklanddc.com to koaladns.com, 56 moved backa rotation loop, not a migration · 24hEMAIL DRIFT1 domain switched email provider24hREGISTRAR DRIFT2 changed registrar24hNOW823 curated domains not reachable+28 vs yesterdaySITE ERRORS17,945 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 93,069 sites429 rate-limit / 403 bot-block, a posture signal