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 DRIFT43,310 material changesacross 41,332 domains · 24h to ~2h ago · +4,070 vs yesterdayROTATION56 domains moved DNS from kirklanddc.com to magpiedns.com, 54 moved backa rotation loop, not a migration · 24hEMAIL DRIFT7 domains switched email provider24hNOW503 curated domains not reachable-88 vs yesterdaySITE ERRORS33,734 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 116,827 sites429 rate-limit / 403 bot-block, a posture signal