Name Servers
guestqrcode.com.br. 1200 IN NS a.sec.dns.br. guestqrcode.com.br. 1200 IN NS b.sec.dns.br.
SOA Details
guestqrcode.com.br. 1200 IN SOA a.sec.dns.br. hostmaster.registro.br. 2026245000 86400 900 604800 900
Certificate Authority Authorization
No CAA records were returned at this registrable domain name. With no CAA policy, any public certificate authority (CA) may issue TLS certificates for names under this zone unless a parent publishes CAA; add issue / issuewild / iodef records to restrict issuance.
DMARC
Organizational policy (p): how receivers treat mail that fails aligned DMARC checks — none (monitor only), quarantine (often junk), or reject (block).
pct: share of mail that gets quarantine/reject; 100 = all failing messages (default).
100Aggregate DMARC reports (ZIP/XML). Optional but recommended for visibility.
Forensic (per-failure) reports. Often omitted for privacy or volume.
guestqrcode.com.br. 1200 IN DMARC v=DMARC1; p=none;
DKIM
No DKIM TXT with `v=DKIM1` was returned for the selector names we probe automatically.
SPF (Sender Policy Framework)
No SPF TXT record was returned (`v=spf1` / `spf2.0/`). SPF tells receivers which hosts may send mail for this domain; without it, aligned DMARC and spoofing defenses are weaker.
MTA-STS
This hostname does not publish an MTA-STS policy (no v=STSv1 TXT at _mta-sts.<name> and/or no policy at https://mta-sts.<name>/.well-known/mta-sts.txt).
DNSSEC Public Keys
guestqrcode.com.br. 1200 IN DNSKEY 257 3 13 GBZxODI7MQwLFfS2oGaTycECWS1SOgeYUPORENMevuBZgw3SlTMmHfJGVZx7GLlbE0PcwR852fmE9YNKmuPQRA==
Delegation Signer
guestqrcode.com.br. 1200 IN DS 2116 13 2 5445891A89FA4B7E048D49535DA81E2E8B18FD9BE654E4F93C4A5B6A087249CE
DNSSEC Signatures
guestqrcode.com.br. 1200 IN RRSIG NS 13 3 3600 1791831414 1788371814 2116 guestqrcode.com.br OjuiP6ecUktkSYig32/dg+MNlyqiNbKMJBUdbtnY+sdKu6aYAWp6IoRFHgD89nQu4ZYlyv++IJhSwYdqR558Kg== guestqrcode.com.br. 1200 IN RRSIG DNSKEY 13 3 3600 1791831414 1788371814 2116 guestqrcode.com.br Fs3eORoAd1sitCILbWUc2LLUWNaS2q+bfbrN5YmkpihHVq8wX9bKjo1NFaJp+NTGNL9YPZP8XqaOwNsxQbxl1g== guestqrcode.com.br. 900 IN RRSIG NSEC 13 3 900 1791831414 1788371814 2116 guestqrcode.com.br S23dr+DzBXV+3dPPGMyyXnQMKjSGX8ZyTEWszJnHvZQebKLRHFbX0kDQKWx5EzjejepRv3fO83dXTWsZGdclow== guestqrcode.com.br. 1200 IN RRSIG SOA 13 3 3600 1791831414 1788371814 2116 guestqrcode.com.br cRtLx2LTsxxDuRnvnKs1yjUD69S21NJFqFgJ5dVc8fkhmA+QIAZsf3QFekEVsTH69aBSWmN62FcjarZICXLVIQ==
DNSSEC Next Secure
guestqrcode.com.br. 900 IN NSEC _dmarc.guestqrcode.com.br ["DNSKEY", "NSEC", "RRSIG", "SOA", "NS"]