technical.city

Observed Jul 24, 2026, 03:33 UTC (3h 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 onHetzner Online

Email byProtonMail

Secured byLet's Encrypt

Also usesGoogle Search Console

IPv6 · tranco_40k

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

INFRASTRUCTURE MAPwhat technical.city actually stands on - every host below is a signed observation

technical.city

A / AAAA

142.132.146.182a01:4f8:261:1823::2

Hetzner Onlineserves the site

chuck.ns.cloudflare.comgwen.ns.cloudflare.com

cloudflare.comanswers its DNS

mail.protonmail.chmailsec.protonmail.ch

ProtonMailreceives its email

TLS

technical.city

Let's Encryptissued its certificate

DNS Records

A 1

142.132.146.18

AAAA 1

2a01:4f8:261:1823::2

MX 2

10mail.protonmail.ch
20mailsec.protonmail.ch

TXT 5

google-site-verification=F1mfFw5T-JPtHY4BnYRFqztyYPl_3EGX7fCkv_V4OJI
protonmail-verification=6c5f2ef2a93e784b863afa5c41d317e72cc9482f
v=spf1 include:_spf.protonmail.ch ~all
yandex-verification: aee7369bf7352362
v=DMARC1; p=reject; rua=mailto:mayor@technical.city;

NS 2

chuck.ns.cloudflare.com
gwen.ns.cloudflare.com

SOA 1

chuck.ns.cloudflare.com dns.cloudflare.com

TLS Certificates (4)

Common Name	Issuer	Expires
`technical.city`	C=US, O=Let's Encrypt, CN=YE1	Tue, 22 Sep 2026 13:28:40 +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 technical.city. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_af448bcba647df76
Output Hash: 4717ee99371fa5aadc57d5ad5f5a92d66f85319ec626f0061251664092bca4b8
Signature: ed25519:0b8d221f5ed6753a756e1d6eb4f3ffadd9ea4fa142b4d2a97670ca12983728947a7571905bba63e6f91fabf2bc5c899df3802bb0973b1125cd804d559c25ee0e
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/technical.city