IPv6 Addresses
cncf.io. 60 IN AAAA 2620:12A:8000:0:0:0:0:3 cncf.io. 60 IN AAAA 2620:12A:8001:0:0:0:0:3
Name Servers
cncf.io. 1200 IN NS ns1.dnsimple-edge.com. cncf.io. 1200 IN NS ns2.dnsimple-edge.net. cncf.io. 1200 IN NS ns3.dnsimple-edge.io. cncf.io. 1200 IN NS ns4.dnsimple-edge.org.
Mail Servers
cncf.io. 300 IN MX 1 aspmx.l.google.com. cncf.io. 300 IN MX 5 alt1.aspmx.l.google.com. cncf.io. 300 IN MX 5 alt2.aspmx.l.google.com. cncf.io. 300 IN MX 10 alt3.aspmx.l.google.com. cncf.io. 300 IN MX 10 alt4.aspmx.l.google.com.
SOA Details
cncf.io. 1200 IN SOA ns1.dnsimple-edge.com. admin.dnsimple.com. 1557512263 86400 7200 604800 300
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).
Subdomain policy (sp): when set, it applies to hostnames below this domain instead of p; if omitted, subdomains inherit the organizational policy.
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.
cncf.io. 60 IN DMARC v=DMARC1; p=none; sp=none; rua=mailto:[email protected]
DKIM
cncf.io. 300 IN DKIM v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAoW/kDNkcUabsPGQswSD36yahFpgjSK3lKavUaXqSqbodkb74w18/1Pe+rPXGMawSQaxdSUPDWxdG9LJXnPUcAJEXlxSjJ6r4OSia+7bIba0jfY5vy/PkauQH4F1oK2tT7C0IE4ISGnZuRP0eiVzLqd9j+1CN3qCB6lbQtLR4W/""mI7khvnNZZRWulnj1bTMd1RI4si0KVPfT75rkydgnMu7eiEcJmy6O+ah/5aY8VLRegzvqKo882JQD4FjJJ3Q/fBwCF2VkGrezvp57TsBou4""KKjJX/RCvY6R8ZpKUp0arbN5DKubdxCwnBQAlfIEu5ezMU1Jrspkg4pXYB/JhAJWQIDAQAB
SPF (Sender Policy Framework)
| Qualifier | Mechanism | Target / value | Valid | Details |
|---|---|---|---|---|
| + Pass | include |
|
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| + Pass | include |
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| + Pass | include |
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| + Pass | include |
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| - Fail | all |
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cncf.io. 60 IN TXT "v=spf1 include:_spf.google.com include:email.influitive.com include:8112310.spf10.hubspotemail.net include:spf.infosalons.com.cn -all"
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).
Text Content
cncf.io. 60 IN TXT "atlassian-domain-verification=hJowEz6/zBHgzz3jX4VphZ1649hJKuNoOXFYWYbD2qVEnNocFYHQQPpqP4+7YfbJ" cncf.io. 300 IN TXT "google-site-verification=SmMiDwGXXq-mW2Pl9FSpFHJlDpfsNd0pLIp3VM44pMM" cncf.io. 1200 IN TXT "google-site-verification=t_KSqbHjvvmFkrb1x7osoE0KA3Imv4r6VAY0N0DUJT4"