heroku.com

Observed 2026-07-15T08:31:34.017Z (2d ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCloudflare

Email byGoogle Workspace

Registered withMarkMonitor Inc.

Also usesGoogle Search Console

IPv6 · 17 subdomains · cloud

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

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

heroku.com

A / AAAA

192.0.66.1102a04:fa87:fffd::c000:426e

Cloudflareserves the site

ns02.herokudns.netdns1.p01.nsone.netns04.herokudns.netdns4.p01.nsone.net+4 more

herokudns.net + nsone.netanswers its DNS

smtp.google.com

Google Workspacereceives its email

HTTPS probe

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

HTTP status301

Servercloudflare

TLS protocolHTTP/2

TLS issuernot observed

Behind Cloudflareyes

Response time182 ms

DNS resolutionNOERROR

Redirect chain

https://www.heroku.com/

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

DNS Records

A 1

192.0.66.110

AAAA 1

2a04:fa87:fffd::c000:426e

MX 1

1smtp.google.com

TXT 7

google-site-verification=0lwG2NjL9452N97Edm9qR-fw8FyHVWarr4WKwWKIoSA
google-site-verification=8HRJpo1MsC3G8GZpZiEWM5yXbzFB8NKa38O6ZjuTc-w
google-site-verification=uk9Ibe3zvPE8drXYiXzryAr19xY3fdyBeEkBp5fkiZY
v=spf1 ip4:167.89.4.18 include:_spf.google.com include:mailgun.org include:aspmx.pardot.com exists:%{i}._spf.corp.salesforce.com ~all
36fded18-0a5e-4a1f-b182-d2e4cfb54606
v=DMARC1;p=reject;fo=1:d:s;pct=100;rua=mailto:dmarc_agg@vali.email,mailto:0e5a5c34@inbox.ondmarc.com;ruf=mailto:0e5a5c34@inbox.ondmarc.com
v=DKIM1; (detected)

NS 8

ns02.herokudns.net
dns1.p01.nsone.net
ns04.herokudns.net
dns4.p01.nsone.net
dns2.p01.nsone.net
dns3.p01.nsone.net
ns01.herokudns.net
ns03.herokudns.net

SOA 1

dns1.p04.nsone.net hostmaster.nsone.net

TLS Certificates (0)

None.

Subdomains (17)

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 heroku.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: 9028ea40-909f-48f6-9fd9-e7e12d6304c6
Output Hash: f8ba1ef9f189c687da3719708a51544e8851646e238f6c759848cbb3c9b37c89
Signature: ed25519:aaa309fce30fbd22f62965543a121e161dbeaf1c4e102c75beab31a4b3cb6968379de821ab2b9cf322a9ec860c2b8567a47e435033af62027e86fc49cfe23c04
Public Key: ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/heroku.com