retentionscience.com

Observed Jul 27, 2026, 15:03 UTC (5d 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

Runs onCloudflare

Email byGoogle (SPF sender)

Secured byAmazon

Also usesAtlassianGoogle Search Console

tranco

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

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

retentionscience.com

A / AAAA

52.21.49.94100.49.22.194

Cloudflareserves the site

ns-1516.awsdns-61.orgns-1638.awsdns-12.co.ukns-309.awsdns-38.comns-740.awsdns-28.net

awsdns-61.org + awsdns-12.co.uk + moreanswers its DNS

edgemail1.constantcontact.comedgemail2.constantcontact.com

Google (SPF sender)receives its email

TLS

retentionscience.com

Amazonissued its certificate

DNS Records

A 2

52.21.49.94
100.49.22.194

MX 2

10edgemail1.constantcontact.com
20edgemail2.constantcontact.com

TXT 8

atlassian-domain-verification=smmpjde6YYCG5+OvXxvzEr3HysH98v3c3mQiEg3ThPdMmSoEQ2IUCAcWT2pQ7Det
globalsign-domain-verification=2293FF371EC705340958BFE107775E53
google-site-verification=DOqkPW9PdBxZ-OhC9fC4UykjK0HAWW1imNBIPw8PUe4
google-site-verification=HjwF5vHHTQ_FuDjfxGozvQOZYmY3RjPGuLbi5YVwDsw
google-site-verification=YIMPA0fGKuIBj7QycKQ6ZS77NOzuSLjHwIp2i82w9mo
google-site-verification=jf3UW19rNibtxgMYyI1BXguT8nR4g5i_1w6uUN7yAx0
v=spf1 include:_spf.google.com include:mail.zendesk.com -all
v=DMARC1; p=reject; rua=mailto:tk0syg54@ag.dmarcian.com,mailto:dmarc_agg@vali.email; ruf=mailto:tk0syg54@fr.dmarcian.com; fo=1

NS 4

ns-1516.awsdns-61.org
ns-1638.awsdns-12.co.uk
ns-309.awsdns-38.com
ns-740.awsdns-28.net

SOA 1

ns-1638.awsdns-12.co.uk awsdns-hostmaster.amazon.com

TLS Certificates (3)

Common Name	Issuer	Expires
`retentionscience.com`	C=US, O=Amazon, CN=Amazon RSA 2048 M01	Sun, 17 Jan 2027 23:59:59 +0000
`Amazon RSA 2048 M01`	C=US, O=Amazon, CN=Amazon Root CA 1	Fri, 23 Aug 2030 22:21:28 +0000
`Amazon Root CA 1`	C=US, ST=Arizona, L=Scottsdale, O=Starfield Technologies, Inc., CN=Starfield Services Root Certificate Authority - G2	Thu, 31 Dec 2037 01:00:00 +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 retentionscience.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_34f506a0fd16a72a
Output Hash: 321fe8f4a8e59c582f1fd39012a2bcf7ffaef563b851b96d87bb3381842ba06a
Signature: ed25519:5f44ef6c17cc5dcdd79324ec78d4d083ee20bf3214eac1fb704c3f70aaa22e2fdd0480ff7f668bf402dd616fa63a0b206c1a53ce78b7c5eb2af6a5390a741e0e
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

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