yfu.de

Observed Jul 27, 2026, 17:59 UTC (6d ago). Every field below was attested with an Ed25519 signature at scan time. Catalog observation, re-checked on rotation - watch it for 5-minute checks.

Verify this receipt yourself + Watch this domain

Up right now

Runs onCloudflare

Email byMicrosoft 365

Secured byLet's Encrypt

Also usesAtlassianGoogle Search Console

IPv6 · tranco

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

INFRASTRUCTURE MAPwhat yfu.de actually stands on - every host below is a signed observation

yfu.de

A / AAAA

104.26.11.86172.67.74.168104.26.10.862606:4700:20::681a:a56+2 more

Cloudflareserves the site

harlan.ns.cloudflare.comstevie.ns.cloudflare.com

cloudflare.comanswers its DNS

yfu-de.mail.protection.outlook.com

Microsoft 365receives its email

TLS

yfu.de

Let's Encryptissued its certificate

DNS Records

A 3

104.26.11.86
172.67.74.168
104.26.10.86

AAAA 3

2606:4700:20::681a:a56
2606:4700:20::681a:b56
2606:4700:20::ac43:4aa8

MX 1

10yfu-de.mail.protection.outlook.com

TXT 12

3BneC67hLU6znsDlutCa6GqmlDROMjcryI2RVO0GMEHRFwjk9oXhPkEsRxAnAlDeI0dGk10nUAQj4sMuEgp5jQ==
apple-domain-verification=gnjPSflYif5HChp0
atlassian-domain-verification=VNR4BIwVOK4ifaJh16dODVpO1E4OsEIjzzGdrjP/PFa66v95GVonDaL7yTMNHTIo
atlassian-sending-domain-verification=65e7e90a-fc85-43e1-95d4-bd53880c03a9
google-gws-recovery-domain-verification=52790296
google-site-verification=10JbLm73rbyVhyx-HmS8qb0rSEiDWvjve7EYwA4tN0s.
google-site-verification=Xr2LyjkOJqIbPP4BszvNqXPHCrpQ2wT2EgQwi0kbmg4
have-i-been-pwned-verification=84658734fe8bf9575b7713753176c6bb
t2yhhkd8k7lb79pwsq3ds0r9mlg2y6gs
v=spf1 mx a:email-smtp.eu-west-1.amazonaws.com ip4:23.249.208.0/20 ip4:23.251.224.0/19 ip4:24.110.64.0/18 ip4:40.92.0.0/15 ip4:40.107.0.0/16 ip4:46.4.238.128/29 ip4:52.100.0.0/15 ip4:52.102.0.0/16 ip4:52.103.0.0/17 ip4:54.240.0.0/18 ip4:54.240.64.0/18 ip4:69.169.224.0/20 ip4:76.223.128.0/19 ip4:76.223.176.0/20 ip4:86.107.243.139 ip4:89.45.227.195 ip4:89.45.227.221 ip4:104.47.0.0/17 ip4:141.193.32.19 ip4:143.55.236.39 ip4:158.69.163.48/29 ip4:178.77.121.128/26 ip4:185.242.115.95 ip4:194.42.96.0/23 ip4:199.127.232.0/22 ip4:199.255.192.0/22 ip4:206.55.144.0/20 ip4:212.114.34.160/27 ip4:212.114.34.224/27 ip4:212.114.35.82 ip4:212.114.37.144 ip4:216.221.160.0/19 ip6:2607:5300:203:fe1::/112 ip6:2a01:111:f400::/48 ip6:2a01:111:f403::/49 ip6:2a01:111:f403:8000::/51 ip6:2a01:111:f403:c000::/51 ip6:2a01:111:f403:f000::/52 -all

NS 2

harlan.ns.cloudflare.com
stevie.ns.cloudflare.com

SOA 1

harlan.ns.cloudflare.com dns.cloudflare.com

TLS Certificates (4)

Common Name	Issuer	Expires
`yfu.de`	C=US, O=Let's Encrypt, CN=YE1	Tue, 13 Oct 2026 12:36:53 +0000
`YE1`	C=US, O=ISRG, CN=Root YE	Sat, 02 Sep 2028 23:59:59 +0000
`Root YE`	C=US, O=Internet Security Research Group, CN=ISRG Root X2	Thu, 02 Sep 2032 23:59:59 +0000
`ISRG Root X2`	C=US, O=Internet Security Research Group, CN=ISRG Root X1	Thu, 02 Sep 2032 23:59:59 +0000

Subdomains (0)

None observed.

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 yfu.de. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_9106cc67badf4607
Output Hash: 46728025c70496522dde6b64cf1b958484491d83a91d49906c8283f6461e5376
Signature: ed25519:c44ac98d383c9c891d554224cd9d30e92d371b819b621f59a91cfc63294ec8eda361758c328baf92feac3e101c1a68859ee927d024badbf44f41602c87f1c102
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

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