callsign.com

Observed 2026-07-13T20:20:39.054Z (3h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCloudflare

Email byMicrosoft 365

Registered withGandi SAS

Also usesHubSpotAtlassianGoogle Search ConsoleDocuSign

7 subdomains · cybersecurity_expanded

Every line above is a signed observation. Check the math at the bottom of the page.

INFRASTRUCTURE MAPwhat callsign.com actually stands on - every host below is a signed observation

callsign.com

A / AAAA

18.239.199.818.239.199.5118.239.199.11718.239.199.59

Cloudflareserves the site

ns-2010.awsdns-59.co.ukns-1277.awsdns-31.orgns-18.awsdns-02.comns-834.awsdns-40.net

awsdns-59.co.uk + awsdns-31.org + moreanswers its DNS

callsign-com.mail.protection.outlook.com

Microsoft 365receives its email

HTTPS probe

redirect Redirecting (3xx) 301 → https://www.callsign.com/

HTTP status301

Servercloudflare

TLS protocolHTTP/2

TLS issuernot observed

Behind Cloudflareyes

Response time46 ms

DNS resolutionNOERROR

Redirect chain

https://www.callsign.com/

Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".

DNS Records

A 4

18.239.199.8
18.239.199.51
18.239.199.117
18.239.199.59

MX 1

0callsign-com.mail.protection.outlook.com

TXT 23

ca3-61aabf216acc45099009be93c8eb2cde
ca3-aaad4be59d3a43058d99981a5b112f12
new-relic-domain-verification=98d53da4dd9f45778cbb4715f3663b5a
h1-domain-verification=ux4iXii3aZMCHbGwHxjjdF29rBGz5o8z9KsJrnMGZtJfjGaz
v=spf1 mx ip4:88.98.228.157 include:spf.protection.outlook.com include:_spf.salesforce.com include:f8abb9e7-spf.mta.getcheckrecipient.com include:amazonses.com include:_spf.atlassian.net include:4503460.spf07.hubspotemail.net -all
apple-domain-verification=2qZDtCMBklj8lVG7
VM060926
ygtcdgmwxft990sv7zp0qnxqqtv1b8l6
atlassian-sending-domain-verification=d11d4d62-618a-4424-9458-89a356558f38
atlassian-domain-verification=Rbe9o/uWgZfpZUKch5hCkLyWyIW62aXektaDYQwYA+M8RglFMm2fwcY5qI9/iAuu

NS 4

ns-2010.awsdns-59.co.uk
ns-1277.awsdns-31.org
ns-18.awsdns-02.com
ns-834.awsdns-40.net

SOA 1

ns-2010.awsdns-59.co.uk awsdns-hostmaster.amazon.com

CAA 14

issuewild amazonaws.com
issuewild awstrust.com
iodef mailto:security@callsign.com
issue amazon.com
issue amazonaws.com
issue digicert.com
issue letsencrypt.org
issuewild amazontrust.com
issue amazontrust.com
issue awstrust.com

TLS Certificates (0)

None.

Subdomains (7)

The proof

Signed at scan time. Check the math yourself. Every line above is part of one signed observation. Re-hash it and check the Ed25519 signature in your own browser; nothing leaves your machine.

Verify this receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for callsign.com. It updates itself. It attests a signed observation - not that the site is safe.

<a href="https://domaindrift.io/t/callsign.com">
  <img src="https://domaindrift.io/badge/callsign.com.svg"
       width="300" height="64" alt="DomainDrift signed observations for callsign.com">
</a>

Ed25519 Receipt

Receipt ID: 70109150-803b-4968-8de4-7baef134edd0
Output Hash: 9ede61d1708e9b05f31d7bff5e4d31ceb460c84e0e51acee1c49a8e6657370d3
Signature: ed25519:18475ac801024f26cf2b1d537ba87e2a9e2290b99a542a6e0eae3817a032ac6528452ed8dc00a88c000c0d9df81c16a6767648247726389c536fe1c8d682b705
Public Key: ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent: (genesis)
Plane: fast

Verify this in your browser

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