IPv4 Addresses
mayoclinic.com. 900 IN A 129.176.1.88
Name Servers
mayoclinic.com. 300 IN NS a1-70.akam.net. mayoclinic.com. 300 IN NS a10-66.akam.net. mayoclinic.com. 300 IN NS a13-66.akam.net. mayoclinic.com. 300 IN NS a14-64.akam.net. mayoclinic.com. 300 IN NS a18-66.akam.net. mayoclinic.com. 300 IN NS a3-66.akam.net. mayoclinic.com. 300 IN NS dns1.mayo.edu. mayoclinic.com. 300 IN NS dns2.mayo.edu.
Mail Servers
mayoclinic.com. 1200 IN MX 20 mail8.mayo.edu. mayoclinic.com. 1200 IN MX 20 mail9.mayo.edu. mayoclinic.com. 1200 IN MX 20 mail7.mayo.edu.
SOA Details
mayoclinic.com. 300 IN SOA dns1.mayo.edu. noc.mayo.edu. 589 10800 3600 2592000 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).
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.
mayoclinic.com. 300 IN DMARC v=DMARC1; p=none; sp=reject; pct=100; rf=afrf; ri=86400; fo=1; aspf=s; adkim=r; ruf=mailto:[email protected]; rua=mailto:[email protected]
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).
Text Content
mayoclinic.com. 300 IN TXT "adobe-idp-site-verification=1a1d294e03dc1f18f089fdab21096893adea673f8881987239a14971cf7c89b5" mayoclinic.com. 300 IN TXT "facebook-domain-verification=gnqlpuc6t32rfgtlpsmu7mcz0e30d6" mayoclinic.com. 300 IN TXT "google-site-verification=0o8iuRq3C2ji2-i8ajTpcBd1PZyOYjgyFRwCejdj39o" mayoclinic.com. 300 IN TXT "google-site-verification=6Mm6uKAIYzio5exaZKwyNljPHu1FwB6eU4I-hSnMr3g" mayoclinic.com. 300 IN TXT "google-site-verification=Ke1F9FxDHjGwSRBikOSa1LEfrKoohWn80AMB1a0iHD8" mayoclinic.com. 300 IN TXT "google-site-verification=Y4YQPOeQ7IvHdDP0Yn7uqgrCxFWUTG4W2ixor7BrxZ8" mayoclinic.com. 300 IN TXT "_uz5g1k3wp3my53wj46cfl46g6oxkp54" mayoclinic.com. 300 IN TXT "ncy863bz54x4hbfx0kxpzms73067ls2p"