speakerdeck.com

Observed Jul 18, 2026, 12:51 UTC (1d ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCloudflare

Email byGoogle Workspace

Secured byLet's Encrypt

Registered with1API GmbH

Also usesFacebook/MetaGoogle Search ConsoleStripe

IPv6 · 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

104.20.28.181172.66.158.1562606:4700:10::6814:1cb52606:4700:10::ac42:9e9c

Cloudflareserves the site

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

cloudflare.comanswers its DNS

aspmx.l.google.comaspmx2.googlemail.comaspmx3.googlemail.comalt1.aspmx.l.google.com+1 more

Google Workspacereceives its email

TLS

speakerdeck.com

Let's Encryptissued its certificate

DNS Records

A 2

104.20.28.181
172.66.158.156

AAAA 2

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

MX 5

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

TXT 7

ALIAS for speakerdeck.com.herokudns.com
facebook-domain-verification=5rzw9hjdxxzobpi4p6lk9tlvpldfej
google-site-verification=3ggCXuHu3Wkywh0QJ4MVBy9jz0MMfAEVJGNVQP56eyY
google-site-verification=U0zznvYUS5x_csx7-HqM5TJh-EGrTvjQOR7wCPGyv74
stripe-verification=51e5bf1257eaab3496a4c15cdce19f2c27d591dd7d87097e936b1fbc2e84a855
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 (2)

Common Name	Issuer	Expires
`speakerdeck.com`	C=US, O=Let's Encrypt, CN=E7	Sat, 22 Aug 2026 21:13:18 +0000
`E7`	C=US, O=Internet Security Research Group, CN=ISRG Root X1	Fri, 12 Mar 2027 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 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: 7647edc6-8aa3-4aec-bad9-6863d5732e65
Output Hash: ad8164da309adcf54acab22d6b936525e8fb7cff72a9532e58e369bb5cafeb45
Signature: ed25519:8b71182f57d5e5f093072b3a04db6e5857567182d5e447f9cdab74a61ca330a6fd4bbff6c9b680a0668d0aa7cbdda377d4b157dabe388bba7a5eb0a21eaa230f
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/speakerdeck.com