open.edu

Observed 2026-06-13T08:17:04.912Z (3h ago). Every field below was attested with an Ed25519 signature at scan time.

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Ed25519 Receipt

Receipt ID
07763779-c5be-4587-96bb-9904c648cd75
Output Hash
21483d4ac4360105e5218c5cd7f2affcb42300b07aa569c6ea96cb2fe32dadae
Signature
ed25519:5549f15005f50c4eb2167aa87ea443645b16501488043f786ec92fdffe0f2b7c66645cca02044cc938b35494ff4f42472ee71ed858bd2b3fb7ea9db1c3ecc209
Public Key
ed25519:d3f6015a95abdad7e8166ad80938a5885500170bb75f8cdb425b8fd2772bec29
Parent
(genesis)
Plane
fast
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DNS Records

A 1

  • 137.108.200.104

MX 1

  • {"priority":10,"exchange":"open-edu.mail.protection.outlook.com"}

TXT 5

  • v=spf1 include:spf.protection.outlook.com ip4:137.108.232.47 ip4:137.108.232.48 ip4:137.108.170.8 ip4:137.108.170.38 ip4:137.108.170.40 ip4:137.108.185.44 -all
  • google-site-verification=KLQmkBsMNGjV3_nUmOkJw07lK3ZIXeFBPvilow84wXk
  • B6B0975F-29DA-4863-AD9B-4CE3671954ED
  • QuoVadis=9a987046-9ec6-40b4-a739-41ad71aa5c85
  • v=DMARC1;p=quarantine;sp=quarantine;pct=100;rua=mailto:dmarc@open.ac.uk,mailto:e1pWdXALyij@dmarc-rua.mailcheck.service.ncsc.gov.uk

NS 6

  • nse-1.open.ac.uk
  • nse-0.open.ac.uk
  • dns3.easydns.org
  • dns1.easydns.com
  • dns2.easydns.net
  • nse-2.open.ac.uk

SOA 1

  • {"mname":"nse-0.open.ac.uk","rname":"hostmaster.open.ac.uk","serial":626265871,"refresh":1200,"retry":180,"expire":1209600,"minimum":3600}

TLS Certificates (4)

Common NameIssuerExpires
open.edu C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication CA OV R36 Wed, 22 Jul 2026 23:59:59 +0000
Sectigo Public Server Authentication CA OV R36 C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication Root R46 Fri, 21 Mar 2036 23:59:59 +0000
Sectigo Public Server Authentication Root R46 C=US, ST=New Jersey, L=Jersey City, O=The USERTRUST Network, CN=USERTrust RSA Certification Authority Mon, 18 Jan 2038 23:59:59 +0000
USERTrust RSA Certification Authority C=US, ST=New Jersey, L=Jersey City, O=The USERTRUST Network, CN=USERTrust RSA Certification Authority Mon, 18 Jan 2038 23:59:59 +0000

Subdomains (2)