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 Check
CONTINUOUS INTERNET TELEMETRY24H DRIFT4,232 material changesacross 2,655 domains · 24h to ~40m ago · -20,867 vs yesterdayROTATION56 domains moved DNS from kirklanddc.com to koaladns.com, 52 moved backa rotation loop, not a migration · 24hREGISTRAR DRIFT3 changed registrar24hNOW559 curated domains not reachablelast probe, steadySITE ERRORS17,820 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 78,597 sites429 rate-limit / 403 bot-block, a posture signal