webkit.org - DNS, WHOIS, DMARC and SPF of the domain name

Summary

Registrar: Nom-iq Ltd. dba COM LAUDE
Status: clientDeleteProhibited
Created on: August 23, 2005
Expires on: August 23, 2027
Name servers: ns-1679.awsdns-17.co.uk, ns-334.awsdns-41.com, ns-920.awsdns-51.net, ns-1488.awsdns-58.org
Mail servers: mx-in.g.apple.com, mx-in-vib.apple.com, mx-in-rno.apple.com, mx-in-hfd.apple.com, mx-in-mdn.apple.com
DMARC: Reject
SPF: Strict
DKIM: 1 key found
Website: See the website

Spoofing protection (DMARC)

Reject

E-mails spoofing this domain are rejected.

DMARC tells mail servers what to do with an e-mail that claims to come from webkit.org 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: [email protected]

Record

v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected];

Authorized senders (SPF)

Strict

E-mails sent by any other server are rejected.

SPF lists the servers allowed to send e-mails for webkit.org.

Rule	Value	Result
include	_spf.apple.com	Allowed
ip4	54.190.50.181	Allowed
ip4	35.167.147.158	Allowed
include	amazonses.com	Allowed
all	—	Rejected

Top-level DNS lookups: 2 of 10 allowed

Record

v=spf1 include:_spf.apple.com ip4:54.190.50.181 ip4:35.167.147.158  include:amazonses.com -all

E-mail signing (DKIM)

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

Selector	Likely service	Key	Status
default	—	RSA 1024 bits · short	Active

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 webkit.org arrive; SPF, DKIM and DMARC let mail servers check that an e-mail claiming to come from webkit.org was really sent by this domain, which protects it against spoofing.

MX

An MX (Mail Exchanger) record designates a server that receives e-mails sent to the domain. When someone writes to an @webkit.org address, their mail server queries the DNS for the domain's MX records, then delivers the message to the server they point to.

Example record

webkit.org  MX  10 mx1.webkit.org.
webkit.org  MX  20 mx2.webkit.org.

What the record contains

10, 20: Priority: the server with the lowest number is tried first. Servers with equal priority share the load.
mx1.webkit.org.: Host name of the mail server. It must point to an A or AAAA record: an IP address or an alias (CNAME) is not allowed here.
0 .: An MX "0 .", called a null MX, declares that the domain accepts no e-mail: sending servers give up at once instead of retrying.

Declaring at least two servers with different priorities avoids losing e-mails during an outage: sending servers retry for several days and fall back on the backup server. Without any MX, they try to deliver directly to the IP address of the domain.

SPF

SPF (Sender Policy Framework) is a TXT record listing the servers allowed to send e-mails on behalf of the domain. The receiving server checks that the sender is on this list. The final "all" rule says what to do with other servers: reject them (-all), flag their e-mails as suspicious (~all) or make no decision (?all).

Example record

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

What the record contains

v=spf1: Identifies the record as an SPF policy. It must come first.
ip4, ip6: Allows a specific IP address or an address range, for example ip4:192.0.2.0/24.
a, mx: Allows the addresses of the domain itself (A record) or those of its mail servers (MX).
include: Allows the servers of another domain, usually a sending service: include:_spf.google.com for Google Workspace.
-all, ~all: Final rule, applied to every other server. Its qualifier decides what happens to them: - rejects them, ~ flags their e-mails as suspicious, ? makes no decision, + accepts them (avoid it).

A domain must publish only one SPF record, and its evaluation cannot exceed 10 DNS lookups (include, a, mx, exists, redirect). Beyond that, mail servers treat it as invalid.

DKIM

DKIM (DomainKeys Identified Mail) signs every outgoing e-mail with a private key. The matching public key is published in a TXT record at selector._domainkey.webkit.org, so the recipient can check that the message really comes from the domain and was not altered on the way. The selector is chosen by each sending service and cannot be guessed: Dataweaz checks the most common ones (Google Workspace, Microsoft 365, Mailchimp, SendGrid…), so a key published under another selector may exist without appearing here.

Example record

google._domainkey.webkit.org  TXT  "v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA…"

What the record contains

v=DKIM1: Protocol version. Optional but recommended, in which case it must come first.
k: Key algorithm: rsa, the most common, or ed25519.
p: Public key, base64-encoded. An empty value means the key has been revoked.
t: Flags: y marks a key in testing, whose failures must not be penalized; s forbids its use for subdomains.

Each sending service publishes its key under its own selector (google, selector1, k1…), which allows several keys and seamless rotation. A 2048-bit RSA key is recommended today.

DMARC

DMARC (Domain-based Message Authentication, Reporting and Conformance) builds on SPF and DKIM. Published on _dmarc.webkit.org, it tells mail servers what to do with an e-mail that fails these checks (let it through, send it to spam or reject it) and where to send reports.

Example record

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

What the record contains

v=DMARC1: Identifies the record as a DMARC policy. It must come first.
p: Policy applied to e-mails that fail the checks: none (monitoring only), quarantine (spam folder) or reject.
sp: Subdomain policy. Without it, subdomains follow the domain's policy.
rua: Address that receives daily aggregate reports about e-mails sent on behalf of the domain, whether they pass the checks or not.
ruf: Address that receives detailed failure reports, message by message. Few providers still send them.
pct: Percentage of e-mails subject to the policy, for a gradual rollout. 100 by default.
adkim, aspf: DKIM and SPF alignment: r (relaxed, a subdomain of the same domain is enough) or s (strict, the domain must be identical).

To roll out DMARC without blocking legitimate e-mails, start with p=none and an rua address, analyze the reports to find every service sending on behalf of the domain, then move to quarantine and finally to reject.

DNS records of webkit.org

IP addresses (A and AAAA)

An A record maps the domain name to an IPv4 address: the address of the server that browsers contact to display the website. The AAAA record does the same for an IPv6 address. A domain can have several of them to spread visits across several servers.

Type	IP address
A	17.33.193.247
A	17.33.192.58
A	17.33.194.222

Name servers (NS)

NS records designate the authoritative DNS servers of the domain: they answer every question about its other records (A, MX, TXT…). They are provided by the registrar, the hosting provider or a dedicated DNS service, and several servers are declared so that the domain keeps working if one of them fails.

Server	IP address
ns-1679.awsdns-17.co.uk	205.251.198.143
ns-334.awsdns-41.com	205.251.193.78
ns-920.awsdns-51.net	205.251.195.152
ns-1488.awsdns-58.org	205.251.197.208

Mail servers (MX)

MX records point to the servers that receive e-mails sent to the domain, that is to @webkit.org addresses. Each server has a priority: the one with the lowest number is tried first, the others take over if it fails. Without an MX record, the domain cannot receive e-mails.

Priority	Server	IP address
10	mx-in.g.apple.com	17.57.165.2
20	mx-in-vib.apple.com	17.57.170.2
20	mx-in-rno.apple.com	—
20	mx-in-hfd.apple.com	17.57.165.2
20	mx-in-mdn.apple.com	—

TXT records

TXT records hold free text. They are used to prove ownership of the domain to online services (Google, Microsoft, Facebook…) and to publish e-mail security rules: SPF on the domain itself, DMARC on _dmarc.webkit.org.

Name	Content
webkit.org	v=spf1 include:_spf.apple.com ip4:54.190.50.181 ip4:35.167.147.158 include:amazonses.com -all
_dmarc.webkit.org	v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected];
default._domainkey.webkit.org	v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCf5vzdJqjdJr2D4kgkadDgcMq+ugJ4doabWBg6J0NyuXAsJAEnptBGLkQ+GOxkB0Cb5yrJ7WiPPTAJMkIQdRZG59oC3ZEYQPTRw1n+SdT9TLNYiLZmlD6df6g7C7uedlsPysP0rTwl+IB/I2JaHDhE7AlPzTvJ7fo6V2Wb+Ic8YwIDAQAB

Related IP addresses

IPv4 addresses used by webkit.org: website, name servers, mail servers and senders authorized by SPF.

IP address	Used for	/24 block
17.33.193.247	Website	17.33.193.0/24
17.33.192.58	Website	17.33.192.0/24
17.33.194.222	Website	17.33.194.0/24
205.251.198.143	Name server ns-1679.awsdns-17.co.uk	205.251.198.0/24
205.251.193.78	Name server ns-334.awsdns-41.com	205.251.193.0/24
205.251.195.152	Name server ns-920.awsdns-51.net	205.251.195.0/24
205.251.197.208	Name server ns-1488.awsdns-58.org	205.251.197.0/24
17.57.165.2	Mail server mx-in.g.apple.com, Mail server mx-in-hfd.apple.com	17.57.165.0/24
17.57.170.2	Mail server mx-in-vib.apple.com	17.57.170.0/24
54.190.50.181	Authorized by SPF	54.190.50.0/24
35.167.147.158	Authorized by SPF	35.167.147.0/24

WHOIS of the domain webkit.org

Domain Name: webkit.org
Registry Domain ID: REDACTED
Registrar WHOIS Server: whois.comlaude.com
Registrar URL: https://comlaude.com/whois
Updated Date: 2026-08-23T23:03:58Z
Creation Date: 2005-08-23T09:26:49Z
Registry Expiry Date: 2027-08-23T09:26:49Z
Registrar: Nom-iq Ltd. dba COM LAUDE
Registrar IANA ID: 470
Registrar Abuse Contact Email: [email protected]
Registrar Abuse Contact Phone: +44.2074218250
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited
Name Server: ns-1488.awsdns-58.org
Name Server: ns-1679.awsdns-17.co.uk
Name Server: ns-334.awsdns-41.com
Name Server: ns-920.awsdns-51.net
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://icann.org/wicf/
>>> Last update of WHOIS database: 2026-10-02T22:56:14Z <<<

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

Terms of Use: Access to Public Interest Registry WHOIS information is provided to assist persons in determining the contents of a domain name registration record in the Public Interest Registry registry database. The data in this record is provided by Public Interest Registry for informational purposes only, and Public Interest Registry does not guarantee its accuracy. This service is intended only for query-based access. You agree that you will use this data only for lawful purposes and that, under no circumstances will you use this data to (a) allow, enable, or otherwise support the transmission by e-mail, telephone, or facsimile of mass unsolicited, commercial advertising or solicitations to entities other than the data recipient's own existing customers; or (b) enable high volume, automated, electronic processes that send queries or data to the systems of Registry Operator, a Registrar, or Identity Digital except as reasonably necessary to register domain names or modify existing registrations. All rights reserved. Public Interest Registry reserves the right to modify these terms at any time. By submitting this query, you agree to abide by this policy.  The Registrar of Record identified in this output may have an RDDS service that can be queried for additional information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Domain Name: webkit.org
Registry Domain ID: 
Registrar WHOIS Server: whois.comlaude.com
Registrar URL: https://www.comlaude.com
Updated Date: 2026-08-23T23:03:58Z
Creation Date: 2005-08-23T00:00:00Z
Registrar Registration Expiration Date: 2027-08-23T00:00:00Z
Registrar: NOM-IQ Ltd dba Com Laude
Registrar IANA ID: 470
Domain Status: clientDeleteProhibited https://www.icann.org/epp#clientDeleteProhibited
Domain Status: clientTransferProhibited https://www.icann.org/epp#clientTransferProhibited
Domain Status: clientUpdateProhibited https://www.icann.org/epp#clientUpdateProhibited
Registry Registrant ID: REDACTED
Registrant Name: REDACTED
Registrant Organization: Apple Inc.
Registrant Street: REDACTED
Registrant City: REDACTED
Registrant State/Province: CA
Registrant Postal Code: REDACTED
Registrant Country: US
Registrant Phone: REDACTED
Registrant Phone Ext: REDACTED
Registrant Fax: REDACTED
Registrant Fax Ext: REDACTED
Registrant Email: [email protected]
Registry Admin ID: REDACTED
Admin Name: REDACTED
Admin Organization: REDACTED
Admin Street: REDACTED
Admin City: REDACTED
Admin State/Province: REDACTED
Admin Postal Code: REDACTED
Admin Country: REDACTED
Admin Phone: REDACTED
Admin Phone Ext: REDACTED
Admin Fax: REDACTED
Admin Fax Ext: REDACTED
Admin Email: [email protected]
Registry Tech ID: REDACTED
Tech Name: REDACTED
Tech Organization: REDACTED
Tech Street: REDACTED
Tech City: REDACTED
Tech State/Province: REDACTED
Tech Postal Code: REDACTED
Tech Country: REDACTED
Tech Phone: REDACTED
Tech Phone Ext: REDACTED
Tech Fax: REDACTED
Tech Fax Ext: REDACTED
Tech Email: [email protected]
Name Server: ns-920.awsdns-51.net
Name Server: ns-1679.awsdns-17.co.uk
Name Server: ns-334.awsdns-41.com
Name Server: ns-1488.awsdns-58.org
DNSSEC: Unsigned Delegation
Registrar Abuse Contact Email: [email protected]
Registrar Abuse Contact Phone: +44.2074218250
URL of the ICANN WHOIS Data Problem Reporting System: http://wdprs.internic.net/
>>> Last update of WHOIS database: 2026-10-02T22:56:14Z <<<

For more information on Whois status codes, please visit https://www.icann.org/resources/pages/epp-status-codes-2014-06-16-en

Please query the RDDS service of the Registrar of Record identified in this
output for information on how to contact the Registrant, Admin, or Tech contact
of the queried domain name.

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By submitting a WHOIS query, you agree that you will use this data only for
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(1) allow, enable, or otherwise support the transmission of mass unsolicited,
commercial advertising or solicitations via e-mail (spam), telephone or fax; or
(2) enable high volume, automated, electronic processes that that send queries
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Com Laude, 28 Little Russell Street, London WC1A 2HN, UK.
Com Laude is a business name of Nom IQ Ltd.
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% WHEN: Fri Oct 02 22:56:13 UTC 2026