DOMAINS CHANGES SERVICES CERTS API

studyblue.com

Observed 2026-06-13T08:17:02.434Z (3h ago). Every field below was attested with an Ed25519 signature at scan time.

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Ed25519 Receipt

Receipt ID
f9d48d3c-559c-493e-9f13-aeec5e70a025
Output Hash
7aad11f2d4d401e9b61ea3a28d03213c420eafc4a5759633ad2c357a571cc9dc
Signature
ed25519:0ff9c21ec767b9ed04e28ccb1bc0177db3f9bace7b0c7f15033d7aa936f598e0e3df17e06e82368b8081f4b959ba9b695644b2493398c1bf644092c099b82300
Public Key
ed25519:d3f6015a95abdad7e8166ad80938a5885500170bb75f8cdb425b8fd2772bec29
Parent
(genesis)
Plane
fast
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DNS Records

A 4

  • 13.226.209.93
  • 13.226.209.105
  • 13.226.209.23
  • 13.226.209.51

TXT 1

  • v=DMARC1; p=none; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com

NS 4

  • ns-1357.awsdns-41.org
  • ns-1879.awsdns-42.co.uk
  • ns-301.awsdns-37.com
  • ns-774.awsdns-32.net

SOA 1

  • {"mname":"ns-774.awsdns-32.net","rname":"awsdns-hostmaster.amazon.com","serial":1,"refresh":7200,"retry":900,"expire":1209600,"minimum":86400}

TLS Certificates (3)

Common NameIssuerExpires
studyblue.com C=US, O=Amazon, CN=Amazon RSA 2048 M04 Tue, 06 Oct 2026 23:59:59 +0000
Amazon RSA 2048 M04 C=US, O=Amazon, CN=Amazon Root CA 1 Fri, 23 Aug 2030 22:26:35 +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 (1)