postman.co

Observed 2026-07-15T15:53:21.422Z (1d ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCloudflare

Email byGoogle Workspace

Also usesGoogle Search ConsoleAtlassian

IPv6 · 95 subdomains · tranco_20k

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

INFRASTRUCTURE MAPwhat postman.co actually stands on - every host below is a signed observation

postman.co

A / AAAA

18.173.121.4218.173.121.2718.173.121.418.173.121.36+8 more

Cloudflareserves the site

ns-1592.awsdns-07.co.ukns-532.awsdns-02.netns-1288.awsdns-33.orgns-359.awsdns-44.com

awsdns-07.co.uk + awsdns-02.net + moreanswers its DNS

alt4.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt1.aspmx.l.google.com+1 more

Google Workspacereceives its email

HTTPS probe

ok Responding normally (2xx) 401

HTTP status401

Servercloudflare

TLS protocolHTTP/2

TLS issuernot observed

Behind Cloudflareyes

Response time445 ms

DNS resolutionNOERROR

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

DNS Records

A 4

18.173.121.42
18.173.121.27
18.173.121.4
18.173.121.36

AAAA 8

2600:9000:25f2:400:13:c016:5e40:93a1
2600:9000:25f2:9e00:13:c016:5e40:93a1
2600:9000:25f2:3000:13:c016:5e40:93a1
2600:9000:25f2:9600:13:c016:5e40:93a1
2600:9000:25f2:4600:13:c016:5e40:93a1
2600:9000:25f2:c200:13:c016:5e40:93a1
2600:9000:25f2:1a00:13:c016:5e40:93a1
2600:9000:25f2:8e00:13:c016:5e40:93a1

MX 5

10alt4.aspmx.l.google.com
5alt2.aspmx.l.google.com
10alt3.aspmx.l.google.com
5alt1.aspmx.l.google.com
1aspmx.l.google.com

TXT 7

ca3-97fe908481f84cd5afaebfb823507a2e
google-site-verification=rqIXdbZ4kBzMMovKiC1wpWIfZs5fahPKxPeIEGZcEZw
atlassian-domain-verification=0XNCaTDavH2SPAwHV8Ksbx7PQzo6xyTbkFom+X1-cwggUjifapzGRqBWPNRkGTkS
v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all
ca3-bf190fde9040490d814f4a45bf353118
google-site-verification=QnAUDUE2a-STa-vOKvvHI5NarhasqR6l0-IAPy5pczY
v=DMARC1; p=quarantine; pct=100; rua=mailto:dmarc_agg@vali.email

NS 4

ns-1592.awsdns-07.co.uk
ns-532.awsdns-02.net
ns-1288.awsdns-33.org
ns-359.awsdns-44.com

SOA 1

ns-1288.awsdns-33.org awsdns-hostmaster.amazon.com

CAA 7

issue letsencrypt.org
issuewild amazon.com
iodef mailto:security@postman.com
issuewild digicert.com
issue amazon.com
issuewild letsencrypt.org
issue digicert.com

TLS Certificates (0)

None.

Subdomains (95)

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 postman.co. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: ef804cc5-af3c-450a-82b7-6d9ee6403aa7
Output Hash: 05c229158e64c08a564f907e7f6c2a9399d05add861cc4dd441a0a9d937ed997
Signature: ed25519:41bab2bd0b21468572bd3917638821c68da0b7887bb3e06544b4e06e36e12fd3a589253407a3d9c15635f6485f050ab77c6c3d0dde976f5e02e1bbf6c2a92c05
Public Key: ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent: (genesis)
Plane: fast

Verify this in your browser

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