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Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain

Hosting & Network

cornell.edu runs on AS26, with email via Microsoft 365.

Hosting network
AS26AS26
Managed DNS
Self-hosted / other
Email
Microsoft 365
IPv6 (AAAA)
Not enabled
CAA pinning
None

Sits alongside 56 other sites on AS26. Stable here since we started watching (Aug 16, 2026).

DNS Records for cornell.edu

HostnameTypeTTLPriorityContent
cornell.eduMX0cornell-edu.mail.protection.outlook.com
cornell.eduA0128.253.173.245
cornell.eduA0128.253.173.243
cornell.eduA0128.253.173.246
cornell.eduA0128.253.173.241
cornell.eduA0128.253.173.244
cornell.eduA0128.253.173.242
cornell.eduSOA3600dns.cit.cornell.edu nsmaster.cornell.edu 3608190502 1860 600 2592000 3600
cornell.eduNS0dns.cit.cornell.edu
cornell.eduNS0bigred.cit.cornell.edu
cornell.eduNS0cudns.cit.cornell.edu
cornell.eduNS0drdns.cit.cornell.edu
cornell.eduNS0drdns2.cit.cornell.edu
cornell.eduTXT0openai-domain-verification=dv-Ha5ILJQm9n2m08y8A4buZxcw
cornell.eduTXT0google-site-verification=CauHX8dfnPle2exSgs6k3OuJ_rPzkV1d6n6E9OFJFO8
cornell.eduTXT0apple-domain-verification=R62yGBLwZW9fUKsm
cornell.eduTXT0google-site-verification=2Fa7hSAy-FAwrMvWZafs9FUqgGxiNrzJExOmdf5HWAo
cornell.eduTXT0facebook-domain-verification=kiwj4xtbf69jsywfq4nlu7a0z81doz
cornell.eduTXT0NmwZsJfvHf2DUPwvPqMaLkflPi89l0leQfEkMtPmpxQNqlkPy0anm5LZM/N+sxrW+oJfdGKCyoi/qnhAhPy8yg==
cornell.eduTXT0D750B9F1EBA3435D9D77F95792265223
cornell.eduTXT0notion-domain-verification=mTQLByaJiMJcaoejfap0w1HqVtit4gqXfxNE3z57ugv
cornell.eduTXT0v=spf1 ip4:128.253.150.144/30 ip4:128.253.150.158 ip4:128.253.150.176 ip4:128.253.150.177 include:_spf.google.com include:spf.protection.outlook.com include:_spf.qualtrics.com -all
cornell.eduTXT0sending_domain44232=26593424e3f9a029c8413a3f66844938dd909eec6d3c1421168e0fa974950b97
cornell.eduTXT0google-site-verification=Gh3jhxuBIdlsH1dgfvJhSGS30sk0OFFvel_I9xQkI5c
cornell.eduTXT0google-site-verification=V6u6xIMwPwKv6d55ZV4VqbkO1mjLlzyvQKkbz4usOM0
cornell.eduTXT07OT7JRZVY1IKZ8J8U84AK2JX4T0J2BM42TL8LSZLV
cornell.eduTXT0autodesk-domain-verification=9Y0MrpeHy7LiqjUs0Rpy
cornell.eduTXT0adobe-idp-site-verification=f41c9778dd61e0b903e5daff9095300a03eb9ad4a2a7ce435b4e4eaf76000127
www.cornell.eduCNAME0cornell-edge-ekhkdhg5czdmb2bf.z01.azurefd.net
www.cornell.eduA0150.171.109.74
www.cornell.eduAAAA02603:1061:14:48::1

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About DNS Records

DNS (Domain Name System) records are instructions that provide information about a domain, including its IP addresses, mail servers, and other services. Common record types include:

  • SOA (Start of Authority) - Contains administrative information about the zone
  • NS (Nameserver) - Specifies authoritative nameservers for the domain
  • A (Address) - Maps a domain to an IPv4 address
  • AAAA - Maps a domain to an IPv6 address
  • CNAME (Canonical Name) - Creates an alias pointing to another domain
  • MX (Mail Exchange) - Specifies mail servers for the domain