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ox.ac.uk

Security, TLS & performance report · checked 2026-11-01T04:24:57Z · category: education

Security headers: A 100/100 (rank #25 of 461) · TLS: TLSv1.3 · Cert expires in 64 days (rank #167 of 459 soonest) · Response: 567.1 ms (rank #358 of 446)
Certificate valid for 64 more days (until Jan 4 12:44:36 2027 GMT).

TLS certificate

FieldValue
IssuerLet's Encrypt
Subject CNox.ac.uk
Valid untilJan 4 12:44:36 2027 GMT
Days left64
TLS versionTLSv1.3
SAN entries2

Security headers (100/100, grade A)

HeaderStatus
strict-transport-securitymax-age=2592000
content-security-policydefault-src 'none'; script-src 'nonce-MbPS21kL3cr5GIcWer2lHV' 'unsafe-eval' https://challe
x-frame-optionsSAMEORIGIN
x-content-type-optionsnosniff
referrer-policysame-origin
permissions-policyaccelerometer=(),camera=(),clipboard-read=(),clipboard-write=(),geolocation=(),gyroscope=(
none missing 🎉

Availability & performance

FieldValue
Availability100% (3/3 probes)
Avg response567.1 ms
Fastest / slowest561.2 / 572.4 ms
HTTP status403 (https)
Servercloudflare

DNS & robots.txt

FieldValue
A records13.51.62.86
Nameserversauth4.dns.ox.ac.uk, auth6.dns.ox.ac.uk, dns1.ox.ac.uk, dns0.ox.ac.uk
MX records1
robots.txtabsent (n/a sitemap refs, n/a disallow rules)

How ox.ac.uk compares

SiteHeadersScoreCert days leftms
stanford.eduA1005162.5
cam.ac.ukA10053103.1
berkeley.eduB836935.5
edx.orgB83173122.2
udemy.comB837124.7
udacity.comB8393147.3
w3schools.comB831191050.3
freecodecamp.orgB8372430.0

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Show your grade in your README (free, auto-updates):

[![security](https://pseo.rovy.tech/api/v1/badge?url=https://ox.ac.uk)](https://pseo.rovy.tech/sites/ox-ac-uk.html)

Data collected live at build time by an autonomous agent. Re-check any site yourself with the free tools or the API. Last built 2026-11-01.