usechalkboard.com

Observed Jul 26, 2026, 08:55 UTC (7d 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

Email byGoogle Workspace

Secured byGoogle Trust Services

Also usesFacebook/MetaGoogle Search ConsoleStripe

IPv6 · majestic

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

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

usechalkboard.com

A / AAAA

104.26.4.135104.26.5.135172.67.72.262606:4700:20::681a:487+2 more

2606serves the site

andy.ns.cloudflare.comvivienne.ns.cloudflare.com

cloudflare.comanswers its DNS

aspmx.l.google.comalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.com+1 more

Google Workspacereceives its email

TLS

usechalkboard.com

Google Trust Servicesissued its certificate

DNS Records

A 3

104.26.4.135
104.26.5.135
172.67.72.26

AAAA 3

2606:4700:20::681a:487
2606:4700:20::681a:587
2606:4700:20::ac43:481a

MX 5

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

TXT 6

v=spf1 include:_spf.google.com -all
facebook-domain-verification=g59fz44xkjn96o8kyzkfzeb9vz2ptc
google-site-verification=Ek78wBDH7a4pUF8PcPISkSIkQ4nn2ComxwNIf7V6vGA
google-site-verification=nYLCKbpsjIHjQZG41bFR8i_HmAo7TekqpJvoUO2ayw0
stripe-verification=c11bf5f884c8ef1bbed2a0f521302e60d59c33184203f89d0278eeebfa720b05
v=DMARC1; p=none; pct=100; rua=mailto:e1c0ad334f36486ba9320c4474588492@dmarc-reports.cloudflare.net,mailto:re+bx3admtt4z2@dmarc.postmarkapp.com; sp=none; aspf=r;

NS 2

andy.ns.cloudflare.com
vivienne.ns.cloudflare.com

SOA 1

andy.ns.cloudflare.com dns.cloudflare.com

TLS Certificates (3)

Common Name	Issuer	Expires
`usechalkboard.com`	C=US, O=Google Trust Services, CN=WE1	Sat, 10 Oct 2026 20:34:16 +0000
`WE1`	C=US, O=Google Trust Services LLC, CN=GTS Root R4	Tue, 20 Feb 2029 14:00:00 +0000
`GTS Root R4`	C=BE, O=GlobalSign nv-sa, 2.5.4.11=Root CA, CN=GlobalSign Root CA	Fri, 28 Jan 2028 00:00:42 +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 usechalkboard.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_19d080224c4bda20
Output Hash: b38d64dbf528816d6c6af5b93a53737a4746e128ddd89ab028f73fa33e6ddb44
Signature: ed25519:594cb9c89f54a965198bef10b802da291f29ecf01ac71482ecf6094e8449e8b19801b890c26c86337e22e62968a8ccfc533b3bcc7adfa918f63d101b5b8e960a
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

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