fu.do

Observed Jul 19, 2026, 13:23 UTC (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 ConsoleSlackFacebook/MetaHubSpot

10 subdomains · tranco_100k

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

INFRASTRUCTURE MAPwhat fu.do actually stands on - every host below is a signed observation

fu.do

A / AAAA

52.67.90.13818.229.176.215

Cloudflareserves the site

ns-827.awsdns-39.netns-1278.awsdns-31.orgns-149.awsdns-18.comns-1667.awsdns-16.co.uk

awsdns-39.net + awsdns-31.org + moreanswers its DNS

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

Google Workspacereceives its email

HTTPS probe

redirect Redirecting (3xx) 302 → /es/

HTTP status302

Servercloudflare

TLS protocolHTTP/2

TLS issuernot observed

Behind Cloudflareyes

Response time1473 ms

DNS resolutionNOERROR

Redirect chain

/es/

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

DNS Records

A 2

52.67.90.138
18.229.176.215

MX 5

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

TXT 8

google-site-verification=1RlM0it457gRSiicTqnhlJxYOVbCHYz2zkncYmUCjT4
cursor-domain-verification-pe1q1c=qxsAPDr3gZZnekQcqThqblYaW
slack-domain-verification=WSlQ3dKCOVwVuyLJH99VVtzXF87NsUF6SEDxOdSG
facebook-domain-verification=khrifmp7iytawobazqijuexld1g5ck
v=spf1 include:_spf.google.com include:5096255.spf02.hubspotemail.net -all
google-site-verification=xhuMmP1_OBBOfyaZpI0sUGKrZ7JrN-ETQAqub7cU8lA
v=DMARC1; p=none; pct=100; rua=mailto:re+umh9xtl1hrf@dmarc.postmarkapp.com; sp=none; aspf=r;
v=DKIM1; (detected)

NS 4

ns-827.awsdns-39.net
ns-1278.awsdns-31.org
ns-149.awsdns-18.com
ns-1667.awsdns-16.co.uk

SOA 1

ns-1278.awsdns-31.org awsdns-hostmaster.amazon.com

TLS Certificates (0)

None.

Subdomains (10)

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 fu.do. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: eded571b-4240-4d14-bfd9-d07736519878
Output Hash: 0856f6852ebf2ed222226261cb2fe32510f0523b3ecc545c552ec0e96bb786d0
Signature: ed25519:29e75c42e21670a54c4ee27b134f0c0d526b4c7be87a948f2735acfb20c5368b35c1f562f7ed3109d16b52c9c09ea994b3b148293fd594197cc3d3d54de0a903
Public Key: ed25519:7aad40f2d6399c207fe2fc15aade04a78324787a355d36725cc90687f9e10cff
Parent: (genesis)
Plane: fast

Verify this in your browser

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