25
records
IPv4 Addresses
TTL
stackoverflow.co. 300 IN A 15.197.167.90 stackoverflow.co. 300 IN A 3.33.186.135
Name Servers
TTL
20m
20m
20m
20m
stackoverflow.co. 1200 IN NS dns1.p02.nsone.net. stackoverflow.co. 1200 IN NS dns2.p02.nsone.net. stackoverflow.co. 1200 IN NS dns3.p02.nsone.net. stackoverflow.co. 1200 IN NS dns4.p02.nsone.net.
Mail Servers
TTL
20m
20m
20m
20m
stackoverflow.co. 1200 IN MX 1 aspmx.l.google.com. stackoverflow.co. 1200 IN MX 5 alt2.aspmx.l.google.com. stackoverflow.co. 1200 IN MX 5 alt1.aspmx.l.google.com. stackoverflow.co. 1200 IN MX 10 alt3.aspmx.l.google.com.
SOA Details
TTL
20m
SOA
Responsible
domains+netlify.netlify.com
SOA
Serial
1662569678
SOA
Times
Refresh
12h
Retry
2h
Expire
14d
Minimum TTL
1h
stackoverflow.co. 1200 IN SOA dns1.p02.nsone.net. domains+netlify.netlify.com. 1662569678 43200 7200 1209600 3600
Certificate Authority Authorization
TTL
CAA
—
20m
20m
20m
20m
20m
20m
20m
stackoverflow.co. 1200 IN CAA 1 iodef "mailto:[email protected]" stackoverflow.co. 1200 IN CAA 1 issue "comodoca.com" stackoverflow.co. 1200 IN CAA 1 issue "digicert.com" stackoverflow.co. 1200 IN CAA 1 issue "letsencrypt.org" stackoverflow.co. 1200 IN CAA 1 issuewild "comodoca.com" stackoverflow.co. 1200 IN CAA 1 issuewild "digicert.com" stackoverflow.co. 1200 IN CAA 1 issuewild "letsencrypt.org"
DMARC
TTL
DMARC
Policy
Organizational policy (p): how receivers treat mail that fails aligned DMARC checks — none (monitor only), quarantine (often junk), or reject (block).
none
quarantine
reject
30s
DMARC
Subdomain Policy
Subdomain policy (sp): when set, it applies to hostnames below this domain instead of p; if omitted, subdomains inherit the organizational policy.
none
quarantine
reject
DMARC
Percentage
pct: share of mail that gets quarantine/reject; 100 = all failing messages (default).
100
DMARC
RUA
mailto:[email protected]
Aggregate DMARC reports (ZIP/XML). Optional but recommended for visibility.
DMARC
RUF
mailto:[email protected]
Forensic (per-failure) reports. Often omitted for privacy or volume.
stackoverflow.co. 30 IN DMARC v=DMARC1; p=reject; sp=quarantine; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
DKIM
TTL
DKIM
Selector
google
v=DKIM1
k=rsa
30s
Public Key
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAplHtdE1zsq2w...
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAplHtdE1zsq2wkZ775faAIcsQk8mylD2UAhFrUe78o0tnFIgn6TKLfNqIyZZ1ZZ/+2QJ4X2CR5n0ly6LrFwuURReInJgOg1ed0Arac5utqCVSfwq5rm93jAfcPnOaiofO61YHuNRNuMy6G1ep6xoUo49kgyje2yww86mn8QcT3aPsgMXisgDf+W27pQFiIqy1c15DjlVstZpPGaeQipy6v2pNmIcHe3VSXwb3Zuhb5YarzJATaKIS9fyynJ4nsLT4DEum68uQJJSUuUT6JJpAZ7Ggt8igRg/nt7mFIGnWTE7swJhMpmYuUquBQV5bpR1NJVSX27ot8FDowYE3U1BVNwIDAQAB
stackoverflow.co. 30 IN DKIM v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAplHtdE1zsq2wkZ775faAIcsQk8mylD2UAhFrUe78o0tnFIgn6TKLfNqIyZZ1ZZ/+2QJ4X2CR5n0ly6LrFwuURReInJgOg1ed0Arac5utqCVSfwq5rm93jAfcPnOaiofO61YHuNRNuMy6G1ep6xoUo49kgyje2yww86mn8QcT3aPsgMXisgDf+W27pQFiIqy1c15DjlVstZpPGaeQipy6v2pNmIcHe3VSXwb3Zuhb5YarzJATaKIS9fyynJ4nsLT4DEum68uQJJSUuUT6JJpAZ7Ggt8igRg/nt7mFIGnWTE7swJhMpmYuUquBQV5bpR1NJVSX27ot8FDowYE3U1BVNwIDAQAB
SPF (Sender Policy Framework)
TTL
SPF
SPFv1
| Qualifier | Mechanism | Target / value | Valid | Details |
|---|---|---|---|---|
| + Pass | include |
|
||
| ~ Softfail | all |
—
|
|
20m
stackoverflow.co. 1200 IN TXT "v=spf1 include:_spf.google.com ~all"
MTA-STS
TTL
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
TTL
adobe-idp-site-verification=25ba5203f3687c9cd6ee3223ee5de1528917828d1da3ebd3bd9a44094cbfc4ac
20m
facebook-domain-verification=y59jadh8mrlmq9v3u8ff5z42rd7723
20m
google-site-verification=NihQgsb9hY_bT_4JYEJSkeLKgkAJyPFFDEqD82p76ug
20m
google-site-verification=X9QXJIDLaXpZ5fQgAqrgCNUD5o4P_rRk5JI2YELPqf4]
20m
stackoverflow.co. 1200 IN TXT "adobe-idp-site-verification=25ba5203f3687c9cd6ee3223ee5de1528917828d1da3ebd3bd9a44094cbfc4ac" stackoverflow.co. 1200 IN TXT "facebook-domain-verification=y59jadh8mrlmq9v3u8ff5z42rd7723" stackoverflow.co. 1200 IN TXT "google-site-verification=NihQgsb9hY_bT_4JYEJSkeLKgkAJyPFFDEqD82p76ug" stackoverflow.co. 1200 IN TXT "google-site-verification=X9QXJIDLaXpZ5fQgAqrgCNUD5o4P_rRk5JI2YELPqf4]"