Results for anthropic.com

TLD+1 (Organisation Level)
SPF MX
DMARC
BIMI MTA-STS
DNSSEC
Nameservers Tech Partners
4 Google Workspace
Cloudflare +1
(p=reject)


Umbrella Rank: > 1,000,000

DNSTwister | Comments | SPF Guru

SPF record for anthropic.com
SPF Lookups = 4

"v=spf1 include:_spf.google.com ~all"

✔️ SPF Record appears to be valid, within the limit of 10 [RFC7208] - currently at 4

1
include:_spf.google.com
Lookup
2
include:_netblocks.google.com
Lookup
3
include:_netblocks2.google.com
Lookup
4
include:_netblocks3.google.com
Lookup


DMARC record for anthropic.com


Vendor(s): Cloudflare,anthropic.com(self)
Policy: reject (100%)

✔️ Great work, You got there!
Your domain is secured and it is not possible for your domain to be spoofed.

Aggregate Recipients (2):
1Cloudflare (mailto:[email protected])
2Unknown (mailto:[email protected])

Forensic Recipients (1):
mailto:[email protected]

Failure Reporting Options(Recommended fo=1):
Generate a DMARC failure report if any underlying authentication mechanism (SPF or DKIM) produced something other than an aligned “pass” result. (fo=1)

"v=DMARC1; p=reject; sp=reject;
rua=mailto:[email protected],mailto:dmarc-reports@an
thropic.com; ruf=mailto:[email protected]; fo=1"

BIMI record for anthropic.com

anthropic.com currently has no default BIMI record

Read all about BIMI


MX record for anthropic.com

VendorPreferenceMX Record

Google Workspace
1aspmx.l.google.com.

Google Workspace
5alt2.aspmx.l.google.com.

Google Workspace
5alt1.aspmx.l.google.com.

Google Workspace
10alt4.aspmx.l.google.com.

Google Workspace
10alt3.aspmx.l.google.com.


MTA-STS record for anthropic.com

anthropic.com currently has no MTA-STS or TLS-RPT records



Name servers for anthropic.com

isla.ns.cloudflare.com.
randy.ns.cloudflare.com.


Technology Partners for anthropic.com


Google
Alphabet Inc. is an American multinational technology conglomerate holding company headquartered in Mountain View, California. It was created through a restructuring of Google on October 2, 2015, and became the parent company of Google and several former Google subsidiaries. Lookup
"google-site-verification=hcpp8MUuEqp_24yZzaMvQheLydlnxVWZ4Bbsv3rJocc"

Slack
Slack is an instant messaging program designed by Slack Technologies and owned by Salesforce. Although Slack was developed for professional and organizational communications, it has also been adopted as a community platform Lookup
"slack-domain-verification=j7g4p0r5GSLrk9O1CswTYqsKJRFURuy5qGKvmAbU"

Airtable
Airtable is a cloud collaboration service headquartered in San Francisco. It was founded in 2012 by Howie Liu, Andrew Ofstad, and Emmett Nicholas. Airtable is a spreadsheet-database hybrid, with the features of a database but applied to a spreadsheet. Lookup
"airtable-verification=cc359049c1ed2f7ecb0260b495a935bc"

Segment (Twilio)
Segment collects events from your web & mobile apps and provides a complete data toolkit to every team in your company Lookup
"segment-site-verification=bh66TwguDMclltZFX2wYU8sv2xwL0jYt"

Microsoft
Microsoft Corporation is an American multinational technology corporation producing computer software, consumer electronics, personal computers, and related services Lookup
"MS=ms40192081"

Stripe
Stripe, Inc. is an Irish-American financial services and software as a service company dual-headquartered in South San Francisco, California, United States and Dublin, Ireland Lookup
"stripe-verification=b4a23f9e5d7d2b9b0c10967235226410439ba826a420b7425970bf11dc1e1c5d"

Atlassian
Atlassian Corporation is an Australian software company that develops products for software developers, project managers and other software development teams. The company is domiciled in Delaware, with global headquarters in Sydney, Australia, and US headquarters in San Francisco Lookup
"atlassian-sending-domain-verification=80547484-e42a-4b89-bf3c-d8ffd4c3ebab"

ElevenLabs
Generate high quality speech in any voice, style, and language. Our AI voice generator renders human intonation and inflections with exceptional fidelity. Lookup
"elevenlabs=gYHFc9PeL2d2VTBdDhfMyRlxwOup_wM5bPLhmo2zux0"

HackerOne
HackerOne is a company specializing in cybersecurity, specifically attack resistance management, which blends the security expertise of ethical hackers with asset discovery, continuous assessment, and process enhancement to find and close gaps in the digital attack surface. Lookup
"h1-domain-verification=ZEejAhpyT5wfKiZRsXi87LTQKM2QBySRC61439biYN9Jnq66"

Cursor
Cursor is an AI-powered code editor designed to enhance developer productivity by integrating advanced artificial intelligence features directly into the coding environment. It is available for macOS, Windows, and Linux. Lookup
"cursor-domain-verification-crx2da=6b38eKFnztmRYqLTALmFfsXSO"

Atlassian
Atlassian Corporation is an Australian software company that develops products for software developers, project managers and other software development teams. The company is domiciled in Delaware, with global headquarters in Sydney, Australia, and US headquarters in San Francisco Lookup
"atlassian-domain-verification=I9Xbb3XhdwM5exlpz4aYPu3j6WwEaPCBQwANPQYdbYWWnqiwB9ULpjyw/bKJtKRf"

1Password
1Password is a password manager developed by AgileBits Inc. It supports multiple platforms such as iOS, Android, Windows, Linux, and macOS. Lookup
"1password-site-verification=TO6XSBV6G5CTTA3Z3KKW2BS44M"
Matched 12 vendors, out of 246 in lookup library.

Force refresh on anthropic.com


your ip: 216.73.216.170


Public Suffix List version: 2025-06-02_07-53-42_UTC