kayak.com

Summary

Registrar

101domain GRS Limited

Status

clientDeleteProhibited

Created on

April 13, 1995

Expires on

May 2, 2027

Name servers

blue.foundationdns.net, blue.foundationdns.org, blue.foundationdns.com

Mail servers

mxa-009e5101.gslb.pphosted.com, mxb-009e5101.gslb.pphosted.com

DMARC

Reject

SPF

Soft

DKIM

10 keys found

Website

See the website

Spoofing protection (DMARC)

DMARC tells mail servers what to do with an e-mail that claims to come from kayak.com but fails SPF and DKIM checks.

Policy

Reject

Subdomain policy

Reject

Messages covered

100%

DKIM alignment

Relaxed

SPF alignment

Relaxed

Aggregate reports

[email protected]

Failure reports

—

Record

v=DMARC1; p=reject; pct=100; adkim=r; aspf=r; rua=mailto:[email protected]

Authorized senders (SPF)

SPF lists the servers allowed to send e-mails for kayak.com.

v=spf1 include:_spf.psm.knowbe4.com include:mail.zendesk.com include:_spf.presscloud.com include:helpscoutemail.com include:kayak.com._nspf.vali.email include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all

E-mail signing (DKIM)

DKIM keys published by kayak.com under the most common selectors. Other keys may exist under selectors specific to each sending service.

RSA keys shorter than 2048 bits, called short keys, are discouraged: they are easier to break.

MX, SPF, DKIM and DMARC: the e-mail records

Four DNS records make a domain's e-mail work. MX says where e-mails sent to kayak.com arrive; SPF, DKIM and DMARC let mail servers check that an e-mail claiming to come from kayak.com was really sent by this domain, which protects it against spoofing.

kayak.com  MX  10 mx1.kayak.com.
kayak.com  MX  20 mx2.kayak.com.

kayak.com  TXT  "v=spf1 mx include:_spf.google.com ip4:192.0.2.10 -all"

google._domainkey.kayak.com  TXT  "v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA…"

_dmarc.kayak.com  TXT  "v=DMARC1; p=quarantine; rua=mailto:[email protected]; adkim=r; aspf=r"

DNS records of kayak.com

Related IP addresses

IPv4 addresses used by kayak.com: website, name servers, mail servers and senders authorized by SPF.

WHOIS of the domain kayak.com

Domain Name: KAYAK.COM
   Registry Domain ID: 543_DOMAIN_COM-VRSN
   Registrar WHOIS Server: whois.101domain.com
   Registrar URL: http://101domain.com
   Updated Date: 2025-01-31T22:00:09Z
   Creation Date: 1995-04-13T04:00:00Z
   Registry Expiry Date: 2027-05-02T03:59:59Z
   Registrar: 101domain GRS Limited
   Registrar IANA ID: 1011
   Registrar Abuse Contact Email: [email protected]
   Registrar Abuse Contact Phone: +1.7604448674
   Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
   Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
   Domain Status: serverDeleteProhibited https://icann.org/epp#serverDeleteProhibited
   Domain Status: serverTransferProhibited https://icann.org/epp#serverTransferProhibited
   Domain Status: serverUpdateProhibited https://icann.org/epp#serverUpdateProhibited
   Name Server: BLUE.FOUNDATIONDNS.COM
   Name Server: BLUE.FOUNDATIONDNS.NET
   Name Server: BLUE.FOUNDATIONDNS.ORG
   DNSSEC: unsigned
   URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2026-10-02T22:58:58Z <<<

For more information on Whois status codes, please visit https://icann.org/epp

NOTICE: The expiration date displayed in this record is the date the
registrar's sponsorship of the domain name registration in the registry is
currently set to expire. This date does not necessarily reflect the expiration
date of the domain name registrant's agreement with the sponsoring
registrar.  Users may consult the sponsoring registrar's Whois database to
view the registrar's reported date of expiration for this registration.

TERMS OF USE: You are not authorized to access or query our Whois
database through the use of electronic processes that are high-volume and
automated except as reasonably necessary to register domain names or
modify existing registrations; the Data in VeriSign Global Registry
Services' ("VeriSign") Whois database is provided by VeriSign for
information purposes only, and to assist persons in obtaining information
about or related to a domain name registration record. VeriSign does not
guarantee its accuracy. By submitting a Whois query, you agree to abide
by the following terms of use: You agree that you may use this Data only
for lawful purposes and that under no circumstances will you use this Data
to: (1) allow, enable, or otherwise support the transmission of mass
unsolicited, commercial advertising or solicitations via e-mail, telephone,
or facsimile; or (2) enable high volume, automated, electronic processes
that apply to VeriSign (or its computer systems). The compilation,
repackaging, dissemination or other use of this Data is expressly
prohibited without the prior written consent of VeriSign. You agree not to
use electronic processes that are automated and high-volume to access or
query the Whois database except as reasonably necessary to register
domain names or modify existing registrations. VeriSign reserves the right
to restrict your access to the Whois database in its sole discretion to ensure
operational stability.  VeriSign may restrict or terminate your access to the
Whois database for failure to abide by these terms of use. VeriSign
reserves the right to modify these terms at any time.

The Registry database contains ONLY .COM, .NET, .EDU domains and
Registrars.