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Rank #2,780Updated November 10, 2026

open.ac.uk

Online Learning Courses and Adult Education - The Open University

The site runs on Cloudflare Web Analytics, Cloudflare, jQuery and 4 other technologies. Its email security grade is C. Its SSL certificate is issued by Google Trust Services and is valid for 57 more days.

Domain age
—
Technologies
7
Email security
C
SSL days left
57

Registration

Name servers

DNS records

TypeValueTTL
A104.18.4.622495
A104.18.5.622495
MXopen-ac-uk.mail.protection.outlook.com 103600
MXopen-ac-uk.mail.protection.outlook.com 203600
NSdns1.easydns.com3600
NSns5.dnsmadeeasy.com3600
NSnse-1.open.ac.uk3600
NSdns2.easydns.net3600
NSnse-0.open.ac.uk3600
NSdns3.easydns.org3600
NSns6.dnsmadeeasy.com3600
NSns7.dnsmadeeasy.com3600
NSnse-2.open.ac.uk3600
TXTgoogle-gws-recovery-domain-verification=725288253600
TXTgoogle-site-verification=google62758846b6a19202.html3600
TXTdocusign=1eb451ea-6371-4947-8336-39756407a4443600
TXTms-domain-verification=58707448-2d95-4d8a-8f96-251fe228a6f53600
TXTms-domain-verification=fa7e3aed-a1a0-4cb4-9357-a73e8937c03f3600
TXTgoogle-site-verification=g-YyMpdzK-9nMYN4-6dSZFui5i-5lFM2aGj6E_K-Oy43600
TXTgoogle-site-verification=w3tGBJl7vw4t0K79wFclAgU_DID2C5bLI_W49_VzNzw3600
TXTdocusign=6ff4a17b-e6f2-45fd-adee-5e7d8e78af603600
TXTpardot_82412_*=e7d72d8276c8595f57773eb4d83b037e856784d58dbdb523b97c0b0f56d9b81a3600
TXTms-domain-verification=8b432f08-e1ac-4736-835a-c1ce2d06382f3600
TXTQuoVadis=68982e3b-7953-4614-873f-9da98085027c3600
TXT18471B7C-2B3F-45E7-AEDC-3EA03414775F3600

Technology stack

JavaScript library
Security
Video

Analytics and advertising IDs

google_tag_manager:GTM-PPS2SH

Other sites using the same IDs: open.edu

SSL certificate

ValidValid
IssuerUS, WE1, Google Trust Services
ExpiresJanuary 6, 2027
Days remaining57
ProtocolTLSv1.3
Namesopen.ac.uk, *.open.ac.uk

Email security

CScore 79/100 across SPF, DMARC, DKIM, MTA-STS and BIMI.
  • warnNo MTA-STS: mail sent to you can be downgraded to an unencrypted connection.
  • warnNo TLS-RPT record, so you won't hear about failed encrypted deliveries.
  • warnNo BIMI record (optional: shows your logo next to your emails in supporting inboxes).
  • goodSPF record found.
  • goodSPF ends with -all: servers you have not listed are rejected (hard fail).
  • goodDMARC policy is quarantine: failing mail goes to spam. Move to p=reject for full protection.
  • goodDMARC aggregate reports are sent to mailto:[email protected], mailto:[email protected], mailto:[email protected].
  • goodDKIM keys found (selector: selector1, selector2).
  • good2 MX record(s) found. Mail is handled by Microsoft 365.

Homepage metadata

TitleOnline Learning Courses and Adult Education - The Open University
DescriptionThe Open University offers flexible full-time and part-time study, supported distance and open learning for undergraduate and postgraduate courses and qualifications.
Languageen
Canonicalhttps://www.open.ac.uk/
IndexableYes
Word count697

About open.ac.uk

What technology does open.ac.uk use?

We detected 7 technologies on open.ac.uk, including Cloudflare Web Analytics, Cloudflare, jQuery, Modernizr, HSTS, Google Tag Manager.

Does open.ac.uk protect its email with SPF and DMARC?

open.ac.uk scores 79/100 (grade C) for email security. No MTA-STS: mail sent to you can be downgraded to an unencrypted connection. No TLS-RPT record, so you won't hear about failed encrypted deliveries.

What are the name servers of open.ac.uk?

open.ac.uk uses dns1.easydns.com, ns5.dnsmadeeasy.com, nse-1.open.ac.uk, dns2.easydns.net, nse-0.open.ac.uk, dns3.easydns.org, ns6.dnsmadeeasy.com, ns7.dnsmadeeasy.com, nse-2.open.ac.uk.