stackoverflow.co

Observed 2026-07-12T09:37:50.578Z (15h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCloudflare

Email byGoogle Workspace

Also usesGoogle Search ConsoleFacebook/Meta

4 subdomains · tranco_40k

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

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

stackoverflow.co

A / AAAA

3.33.186.13515.197.167.90

Cloudflareserves the site

dns4.p02.nsone.netdns2.p02.nsone.netdns1.p02.nsone.netdns3.p02.nsone.net

nsone.netanswers its DNS

alt1.aspmx.l.google.comalt3.aspmx.l.google.comalt2.aspmx.l.google.comaspmx.l.google.com

Google Workspacereceives its email

HTTPS probe

ok Responding normally (2xx) 200 OK

HTTP status200

Servercloudflare

TLS protocolHTTP/2

TLS issuernot observed

Behind Cloudflareyes

Response time331 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 2

3.33.186.135
15.197.167.90

MX 4

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

TXT 7

google-site-verification=X9QXJIDLaXpZ5fQgAqrgCNUD5o4P_rRk5JI2YELPqf4]
adobe-idp-site-verification=25ba5203f3687c9cd6ee3223ee5de1528917828d1da3ebd3bd9a44094cbfc4ac
v=spf1 include:_spf.google.com ~all
google-site-verification=NihQgsb9hY_bT_4JYEJSkeLKgkAJyPFFDEqD82p76ug
facebook-domain-verification=y59jadh8mrlmq9v3u8ff5z42rd7723
v=DMARC1; p=reject; sp=quarantine; pct=100; rua=mailto:dmarc-aggregates@stackoverflow.com; ruf=mailto:dmarc-forensics@stackoverflow.com; fo=1
v=DKIM1; (detected)

NS 4

dns4.p02.nsone.net
dns2.p02.nsone.net
dns1.p02.nsone.net
dns3.p02.nsone.net

SOA 1

dns1.p02.nsone.net domains+netlify.netlify.com

CAA 7

issuewild comodoca.com
issuewild digicert.com
issue digicert.com
issuewild letsencrypt.org
issue comodoca.com
issue letsencrypt.org
iodef mailto:sysadmin-team@stackoverflow.com

TLS Certificates (0)

None.

Subdomains (4)

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 Connor observes and signs for stackoverflow.co. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: 01366108-3fe9-4c1f-8c81-cd5f82ee7c9f
Output Hash: f468cba0a2777d7bed3f51f9d3a4ae7e5ecf04878a3b8f0d40a3a10cd0759777
Signature: ed25519:fad4245c0783c7eadff692b051a510960a94e1911165e82da852b0b39afc1a2b2f8559f35441bafec0d2f415da88b70e4646f65ffa9d8dddef24cb1dbbe0330a
Public Key: ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/stackoverflow.co