thersa.org

Observed Jul 24, 2026, 19:37 UTC (8d 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

Guarded by a firewall

Runs onCloudflare

Email bySalesforce

Secured byGoogle Trust Services

Also usesGoogle Search Console

IPv6 · tranco_100k

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

INFRASTRUCTURE MAPwhat thersa.org actually stands on - every host below is a signed observation

thersa.org

A / AAAA

172.66.161.94104.20.18.102606:4700:10::6814:120a2606:4700:10::ac42:a15e

Cloudflareserves the site

elma.ns.cloudflare.comjames.ns.cloudflare.com

cloudflare.comanswers its DNS

mx1-eu.emailsecurity.appmx2-eu.emailsecurity.app

Salesforcereceives its email

TLS

thersa.org

Google Trust Servicesissued its certificate

DNS Records

A 2

172.66.161.94
104.20.18.10

AAAA 2

2606:4700:10::6814:120a
2606:4700:10::ac42:a15e

MX 2

10mx1-eu.emailsecurity.app
20mx2-eu.emailsecurity.app

TXT 10

DZC=54FB3FH8
MS=ms55827732
PtVw7csO3GlFM1yCJkOeACkqL4BBJ6ybxtU6z3Ihy1GTQKsY8QgOry/0XyiZzk3EdS78z7dqb2Z+30xk9KOFNw==
VVhDJUi9EX+JFMzltfT+Fp2pxmG5NgJ537rEI7OE3YI0ynlh2VefjfH3AWaI3x2k0bb5OGUMq//Az/47t4dGHw==
g3ip6l2h5j161au7rg7i02lh6t
google-site-verification=OVCJpTaZkfPdB8L0vR2cb261DZI6yn5yeLSE4eGjdfQ
lmq5iaoo6j450ds7etuemuktjg
rsaorgukepiserver.azurewebsites.net
v=spf1 include:spf.protection.outlook.com include:_spf.salesforce.com include:aspmx.pardot.com ~all
v=DMARC1; p=none; fo=1; rua=mailto:dmarc@rsa.org.uk,mailto:dmarc@wearepenelope.co.uk,mailto:rua+thersa.org@dmarc.barracudanetworks.com; ruf=mailto:ruf+thersa.org@dmarc.barracudanetworks.com

NS 2

elma.ns.cloudflare.com
james.ns.cloudflare.com

SOA 1

elma.ns.cloudflare.com dns.cloudflare.com

TLS Certificates (3)

Common Name	Issuer	Expires
`thersa.org`	C=US, O=Google Trust Services, CN=WE1	Fri, 28 Aug 2026 11:52:42 +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 thersa.org. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_204648b182d43334
Output Hash: 74a6f8f7780238047de95933089f59b76f928c3677022a79239cabc2af0cee1c
Signature: ed25519:63a1f0db5a008064e60e5e42b559d95f5a94cee751bfa58f0540888ecb6a5b1af5f68d49bd8c8502db38251a591c6c8c638e5a02e206d7fc52a194100bf5660f
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

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Permalink: https://domaindrift.io/t/thersa.org