zenn.dev

Observed 2026-07-13T13:35:23.270Z (2h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCloudflare

Email byGoogle Workspace

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 zenn.dev actually stands on - every host below is a signed observation

zenn.dev

A / AAAA

104.26.15.203172.67.72.220104.26.14.2032606:4700:20::ac43:48dc+2 more

Cloudflareserves the site

gabriel.ns.cloudflare.comsusan.ns.cloudflare.com

cloudflare.comanswers its DNS

alt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.com+1 more

Google Workspacereceives its email

HTTPS probe

ok Responding normally (2xx) 200 OK

HTTP status200

Servercloudflare

TLS protocolHTTP/3

TLS issuernot observed

Behind Cloudflareyes

Response time372 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 3

104.26.15.203
172.67.72.220
104.26.14.203

AAAA 3

2606:4700:20::ac43:48dc
2606:4700:20::681a:ecb
2606:4700:20::681a:fcb

MX 5

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

TXT 6

google-site-verification=BViXpCnxS81SVVVCJ9B2q0122hOaPKM8QePvwyYOJaA
google-site-verification=udMf6x_Z0J82_tdCFgcpik-TNvh-LZk15yyd7oD2PCo
v=spf1 include:_spf.google.com ~all
v=DMARC1;p=quarantine;rua=mailto:c4d6881988@rua.easydmarc.com;ruf=mailto:c4d6881988@ruf.easydmarc.com;fo=1;
v=DKIM1; (detected)
v=DNSSEC1; (detected)

NS 2

gabriel.ns.cloudflare.com
susan.ns.cloudflare.com

SOA 1

gabriel.ns.cloudflare.com dns.cloudflare.com

CAA 10

issuewild comodoca.com
issue digicert.com; cansignhttpexchanges=yes
issue letsencrypt.org
issuewild pki.goog; cansignhttpexchanges=yes
issuewild letsencrypt.org
issue comodoca.com
issuewild ssl.com
issuewild digicert.com; cansignhttpexchanges=yes
issue ssl.com
issue pki.goog; cansignhttpexchanges=yes

TLS Certificates (0)

None.

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 zenn.dev. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: de985ce3-b889-4fd9-8564-635a9ebe0cfb
Output Hash: fe57cc56c888d26771ecaa68d56f52b1272cd02cee2b58dcae52943abcc26437
Signature: ed25519:39123723d6d159eeb31663acb8667a17448ab2256e04d4b8655841680806842dcd1ca27f27da1c122e5fb763064696323e818264b3a8887a7d8edbfa0d07db08
Public Key: ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/zenn.dev