speakerdeck.com

Observed 2026-07-13T23:48:47.214Z (8h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCloudflare

Email byGoogle Workspace

Registered with1API GmbH

Also usesStripeFacebook/MetaGoogle Search Console

IPv6 · 5 subdomains · tranco_10k

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

INFRASTRUCTURE MAPwhat speakerdeck.com actually stands on - every host below is a signed observation

speakerdeck.com

A / AAAA

172.66.158.156104.20.28.1812606:4700:10::ac42:9e9c2606:4700:10::6814:1cb5

Cloudflareserves the site

john.ns.cloudflare.comnola.ns.cloudflare.com

cloudflare.comanswers its DNS

aspmx.l.google.comalt1.aspmx.l.google.comaspmx3.googlemail.comalt2.aspmx.l.google.com+1 more

Google Workspacereceives its email

HTTPS probe

ok Responding normally (2xx) 200 OK

HTTP status200

Servercloudflare

TLS protocolHTTP/2

TLS issuernot observed

Behind Cloudflareyes

Response time245 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

172.66.158.156
104.20.28.181

AAAA 2

2606:4700:10::ac42:9e9c
2606:4700:10::6814:1cb5

MX 5

1aspmx.l.google.com
5alt1.aspmx.l.google.com
10aspmx3.googlemail.com
5alt2.aspmx.l.google.com
10aspmx2.googlemail.com

TXT 7

stripe-verification=51e5bf1257eaab3496a4c15cdce19f2c27d591dd7d87097e936b1fbc2e84a855
facebook-domain-verification=5rzw9hjdxxzobpi4p6lk9tlvpldfej
ALIAS for speakerdeck.com.herokudns.com
google-site-verification=U0zznvYUS5x_csx7-HqM5TJh-EGrTvjQOR7wCPGyv74
google-site-verification=3ggCXuHu3Wkywh0QJ4MVBy9jz0MMfAEVJGNVQP56eyY
v=spf1 include:mailgun.org ~all
v=DMARC1; p=none; pct=100; rua=mailto:re+ujoikvv7kje@dmarc.postmarkapp.com; sp=none; aspf=r;

NS 2

john.ns.cloudflare.com
nola.ns.cloudflare.com

SOA 1

john.ns.cloudflare.com dns.cloudflare.com

TLS Certificates (0)

None.

Subdomains (5)

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 speakerdeck.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: 1e9ffdec-5176-4e19-a6cb-2439c7c1968a
Output Hash: e3152dba9e57b228186981460d3a42556fc681fb39bb898afb7b6fbb60d85a5d
Signature: ed25519:d4188bc8bc5651df0767312451b38679cbdca753d7506e3d878203d9cac2d44666dd07fc39f442cbe536e44d9233ad3384c9c3f0499fe6a1029bad2e9050250f
Public Key: ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent: (genesis)
Plane: fast

Verify this in your browser

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