Domain lookup
open.ac.uk
Hosted by Jisc Services Limited (AS786) in United Kingdom · Tranco rank #10,816 · 🇫🇷 Top 100K in France
Hosting
137.108.200.89AS786 Jisc Services Limited · 🇬🇧 United Kingdom · Clean
Technologies
Home pageProtected by an anti-bot page: the site itself could not be analysed
Web serverCloudflare
CDN / protectionCloudflare
ProtocolTLS 1.3 · HTTP/2
Security headersHSTS 6+ months CSP Frame protection nosniff Referrer-Policy
SourceHome page probe · 4 Oct 2026 · statistics · about this probe
DNS records
Name serversDNS Made Easy
dns1.easydns.com
dns2.easydns.net
dns3.easydns.org
ns5.dnsmadeeasy.com
ns6.dnsmadeeasy.com
ns7.dnsmadeeasy.com
nse-0.open.ac.uk
nse-1.open.ac.uk
nse-2.open.ac.uk
dns1.easydns.com
dns2.easydns.net
dns3.easydns.org
ns5.dnsmadeeasy.com
ns6.dnsmadeeasy.com
ns7.dnsmadeeasy.com
nse-0.open.ac.uk
nse-1.open.ac.uk
nse-2.open.ac.uk
Mail serversMicrosoft 365
10 open-ac-uk.mail.protection.outlook.com
20 open-ac-uk.mail.protection.outlook.com
10 open-ac-uk.mail.protection.outlook.com
20 open-ac-uk.mail.protection.outlook.com
SPFv=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 ip4:137.108.185.41 -all
DMARCv=DMARC1;p=quarantine;sp=quarantine;pct=100;rua=mailto:dmarc-rua@dmarc.service.gov.uk,mailto:dmarc@open.ac.uk,mailto:dmarc_agg@vali.email
Other popular domains on 137.108.200.89
open2.netTranco #532,666
openuni.cymru.cymru registry
openuniversity.cymru.cymru registry
prifysgolagored.cymru.cymru registry
theopenuniversity.cymru.cymru registry
ybrifysgolagored.cymru.cymru registry
openartsarchive.org.org registry
open.wales.wales registry
Known domains: the Tranco top 1M (most popular sites worldwide), the sites most visited in 238 countries (Chrome UX Report), every active .fr domain (AFNIC open data), every .nu, .ee, .se, .ch, .li, .sk domain (registry zone files), every domain of 1021 generic TLDs such as .org, .pro, .cloud (ICANN CZDS zone files) and domains seen in new certificates (Certificate Transparency logs, .com and .net included, collected since 30 September 2026), resolved regularly — updated continuously, last update 2026-10-09. Not exhaustive: other sites may share this address.
From our weekly resolution of the Tranco top 1M (last run 2026-10-03). JSON: /domain/open.ac.uk?format=json