saybrook.edu

Observed Aug 12, 2026, 03:52 UTC (3d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of saybrook.edu was taken 3d ago

saybrook.edu is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting saybrook.edu under watch moves it to the fast lane, where DomainDrift re-checks it about every 5 minutes and signs each reading, so a change becomes a dated event within minutes instead of waiting for the sweep to come round.

Watch saybrook.edu Watching a domain needs a DRM3 account. The reading above stays free and public either way.

Verify this receipt yourself + Watch this domain

Up right now

Runs onCloudflare

Email byMicrosoft 365

Secured byAmazon

tranco

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

INFRASTRUCTURE MAPwhat saybrook.edu actually stands on - every host below is a signed observation

saybrook.edu

A / AAAA

15.197.191.12899.83.160.113

Cloudflareserves the site

ns-1329.awsdns-38.orgns-1613.awsdns-09.co.ukns-421.awsdns-52.comns-926.awsdns-51.net

awsdns-38.org + awsdns-09.co.uk + moreanswers its DNS

saybrook-edu.mail.protection.outlook.com

Microsoft 365receives its email

TLS

saybrook.edu

Amazonissued its certificate

DNS Records

A 2

15.197.191.128
99.83.160.113

MX 1

0saybrook-edu.mail.protection.outlook.com

TXT 3

0TH21IF75GNB1PIEDRU2FKBJNG8Z871NZ3WI1XN8E
ABA2810D627536F2616A95A2ABDB6FF9502BBFE0
v=spf1 include:spf.protection.outlook.com include:_spf1.saybrook.edu include:_spf2.saybrook.edu -all

NS 4

ns-1329.awsdns-38.org
ns-1613.awsdns-09.co.uk
ns-421.awsdns-52.com
ns-926.awsdns-51.net

SOA 1

ns-1329.awsdns-38.org awsdns-hostmaster.amazon.com

SRV 1

autodiscover.outlook.com:443 p0

DMARC_RECORDS 1

v=DMARC1; p=none;

TLS Certificates (3)

Common Name	Issuer	Expires
`saybrook.edu`	C=US, O=Amazon, CN=Amazon RSA 2048 M01	Tue, 02 Feb 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; the only network request the check makes is for the published public keys.

Verify this receipt

Ed25519 Receipt

Receipt ID: rcpt_c395e07442ca21ea
Output Hash: a2495c128f0591a054a1667b197753dbd6e7ae28878f9e6b836dabde4bdce319
Signature: ed25519:e0f923d5e987af9af49e3bb862e1042adc77f9513197aaa80fb93bda8e28ffdd38db35fc9cf98cfba62f312fa119dfdd2a6c7d3f7a2a4c63b709e0be67614309
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

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