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https://imperial.ac.uk

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
94
GRADE
A
FIX
1
REVIEW
2
PASS
6
INFO
0
Probed from Madrid, Spain
301 Moved Permanently
Checks
9
6 PASS 2 REVIEW 1 FIX
D
CDN & Delivery
Action
No CDN detected
FIX
No CDN detected
Warning::
No CDN detected
A CDN can significantly improve load times for users around the world by caching content at edge nodes closer to them.
No CDN detected

Consider using a CDN to improve global delivery speed and reduce origin load.

B
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
REVIEW
www/non-www, trailing slash, HTTP→HTTPS
Critical::
Both www and non-www versions serve content
Got: Both variants return 200 Expected: One variant 301-redirects to the other
Info::
HTTP correctly 301-redirects to HTTPS

www / non-www

200https://www.imperial.ac.uk/
200https://imperial.ac.uk/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://imperial.ac.uk/ → https://imperial.ac.uk/

Consistent

B
TLS Certificate Expiry & Recommendations
35 days until leaf cert expires — 3 issues to address
REVIEW

Certificate validity

35
days left
0d 30d 60d 90d+

Recommended actions

  • Submit your domain to hstspreload.org to be added to the Chrome preload list
  • Enable DNSSEC on your domain for DNS spoofing protection
  • Enable OCSP stapling on your TLS server to remove a CA roundtrip and protect user privacy
A+
DNS Records
2 A records, 31 ms lookup
PASS
2 A records, 31 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 146.179.12.148, 146.179.42.148
Info::
Has 2 IPv6 (AAAA) record(s)
Got: 2a0c:5bc0:88:100:1::172, 2a0c:5bc0:80:100:1::172
Info::
4 nameserver(s) configured
Got: ns1.ic.ac.uk, ns2.ic.ac.uk, ns0.ic.ac.uk, auth0.dns.cam.ac.uk
Info::
1 mail exchanger(s) configured
Info::
CAA records not checked
CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
Info::
SPF record present in TXT
Info::
DNS resolution time: 31 ms
Got: 31 ms
A146.179.12.148, 146.179.42.148
AAAA2a0c:5bc0:88:100:1::172, 2a0c:5bc0:80:100:1::172
CNAME—
NSns1.ic.ac.uk, ns2.ic.ac.uk, ns0.ic.ac.uk, auth0.dns.cam.ac.uk
MX
0 imperial-ac-uk.mail.protection.outlook.com
TXT
jamf-site-verification=HDaGaFih5Un-ehjGdM20UA
B7OdSiuxOT4nDzVKc3rvRvPCmauZX0/VUm0gfNk4rF2in08TlPIw9PTxeO7uivisEBoFTWH/3lkOCnEH...
MOI0I0B7LIOY7POYA53QV247X60DYHI84J7TIP22D
asv=b93d130fbe6b772d49da4120a64c7f12
SPF v=spf1 include:_spf.imperial.ac.uk ~all
jpTnP0a85DNKFLkx3olXeqgv6Fmksm7XhTp1ObH+mitHv34hgwMAH7sDmZsqdrYYrcftGIRG4gbhRzaQ...
1a531ca6-e94c-49b4-873a-d9a369194f9d.100718
QuoVadis=074d27b3-587e-4c96-b5be-881e3fa0d7b9
google-site-verification=Qo0W6m-3ORySc1aBAXZO6YJZHwTP-3Xun7tZRgtdRQg
pardot472252=359a71a66c9fce4a6dab576ed4b90d1124ace810165c3639364c4f8f26c4bb0a
CAALookup not available with standard resolver
Resolved in 31 ms

CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.

Why this matters

Informational: CAA (Certification Authority Authorization) records weren't checked in this scan.

A
Redirect Chain
1 redirect(s), 237 ms total
PASS
1 redirect(s), 237 ms total
Info::
Single redirect
Got: https://imperial.ac.uk → https://www.imperial.ac.uk/ (301)
Info::
WWW normalization redirect

https://imperial.ac.uk

93 ms · HTTP/1.1

301

https://www.imperial.ac.uk/

144 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://imperial.ac.uk30193 msHTTP/1.1Microsoft-IIS/10.0
2https://www.imperial.ac.uk/200144 msHTTP/1.1Microsoft-IIS/10.0

See the visual redirect chain in the HTTP Probe tab →

A+
IPv6 Readiness
IPv6 reachable (28 ms)
PASS
IPv6 reachable (28 ms)
Info::
IPv6 is configured and reachable at 2a0c:5bc0:88:100:1::172, 2a0c:5bc0:80:100:1::172
Got: 28 ms connect
IPv6 Ready
AAAA Records 2a0c:5bc0:88:100:1::172, 2a0c:5bc0:80:100:1::172 Connection Reachable (28 ms)
A+
Crawlability
robots.txt present, sitemap with 17242 URLs
PASS
robots.txt present, sitemap with 17242 URLs
Info::
robots.txt is present
Got: 6379 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 17242 entries
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 6379 B Sitemaps referenced 3 User-agents slurp, * Blocking No — crawling allowed
User-agent: slurp
Crawl-delay: 0.5

User-agent: *
Disallow: /terminalfour/SiteManager/
Disallow: /business-school/icbs-apis/
# CSS, JS, Images
Allow: /business-school/core/*.css$
Allow: /business-school/core/*.css?
Allow: /business-school/core/*.js$
Allow: /business-school/core/*.js?
Allow: /business-school/core/*.gif
Allow: /business-school/core/*.jpg
Allow: /business-school/core/*.jpeg
Allow: /business-school/core/*.png
Allow: /business-school/core/*.svg
Allow: /business-school/profiles/*.css$
Allow: /business-school/profiles/*.css?
Allow: /business-school/profiles/*.js$
Allow: /business-school/profiles/*.js?
Allow: /business-school/profiles/*.gif
Allow: /business-school/profiles/*.jpg
Allow: /business-school/profiles/*.jpeg
Allow: /business-school/profiles/*.png
Allow: /business-school/profiles/*.svg
# Directories
Disallow: /business-school/core/
Disallow: /business-school/profiles/
# Files
Disallow: /business-school/README.txt
Disallow: /business-school/web.config
# Paths (clean URLs)
Disallow: /business-school/admin/
Disallow: /business-school/comment/reply/
Disallow: /business-school/filter/tips
Disallow: /business-school/node/add/
Disallow: /business-school/search/
Disallow: /business-school/user/register/
Disallow: /business-school/user/password/
Disallow: /business-school/user/login/
Disallow: /business-school/user/logout/

# Paths (no clean URLs)
Disallow: /business-school/index.php/admin/
Disallow: /business-school/index.php/comment/reply/
Disallow: /business-school/index.php/filter/tips
Disallow: /business-school/index.php/node/add/
Disallow: /business-school/index.php/search/
Disallow: /business-school/index.php/user/password/
Disallow: /business-school/index.php/user/register/
Disallow: /business-school/index.php/user/login/
Disallow: /business-school/index.php/user/logout/

# business school thank you pages and others
Disallow: /business-school/phd/mailing-list/thank-you/
Disallow: /business-school/phd/brochure/thank-you/
Disallow: /business-school/undergraduate/summer-school/mailing-list/thank-you/ 
Disallow: /business-school/undergraduate/summer-school/brochure/thank-you/ 
Disallow: /business-school/undergraduate/mailing-list/thank-you 
Disallow: /business-school/undergraduate/brochure/thank-you 
Disallow: /business-school/masters/mailing-list/thank-you 
Disallow: /business-school/masters/brochure/thank-you 
Disallow: /business-school/mba/full-time-mba/class-profile/thank-you/ 
Disallow: /business-school/mba/full-time-mba/career-impact/thank-you/ 
Disallow: /business-school/mba/executive-mba/class-profile/thank-you/ 
Disallow: /business-school/mba/executive-mba/consultation/thank-you/ 
Disallow: /business-school/mba/weekend-mba/career-impact/thank-you/ 
Disallow: /business-school/mba/weekend-mba/class-profile/thank-you/ 
Disallow: /business-school/mba/weekend-mba/consultation/thank-you/ 
Disallow: /business-school/mba/global-online-mba/consultation/thank-you/ 
Disallow: /business-school/mba/global-online-mba/career-impact/thank-you/ 
Disallow: /business-school/mba/brochure/thank-you 
Disallow: /business-school/mba/mailing-list/thank-you 
Disallow: /business-school/programmes/gmat-waiver/thank-you
Disallow: /business-school/masters/finance-employment-report-thank-you
Disallow: /business-school/masters/international-management/career-impact/thank-you/ 
Disallow: /business-school/masters/international-management/consultation/thank-you/ 
Disallow: /business-school/programmes/thank-you-for-registering/ 
Disallow: /business-school/executive-education/virtual-programmes/request-call-back/thank-you/
Disallow: /business-school/executive-education/staff-training-and-development/thank-you/
Disallow: /business-school/executive-education/download-virtual-brochure/thank-you/ 
Disallow: /business-school/executive-education/download-brochure/thank-you/ 
Disallow: /business-school/executive-education/download-calendar/thank-you/ 
Disallow: /business-school/executive-education/alumni-discount/thank-you/ 
Disallow: /business-school/executive-education/application-form/group-bookings/thank-you/ 
Disallow: /business-school/executive-education/request-call-back/thank-you/ 
Disallow: /business-school/executive-education/application-form/virtual-programmes/thank-you/ 
Disallow: /business-school/executive-education/custom-programmes/closed-group-programme-enquiry/thank-you/ 
Disallow: /business-school/executive-education/events/webinar-thank-you/ 
Disallow: /business-school/executive-education/contact-us/customised-programmes-enquiries/thank-you/ 
Disallow: /business-school/executive-education/contact-us/short-courses-enquiry-form/thank-you/ 
Disallow: /business-school/executive-education/events/sign-up/thank-you/ 
Disallow: /business-school/executive-education/application-form/thank-you/ 
Disallow: /business-school/news-and-events/sign-news-and-events/thank-you/ 
Disallow: /business-school/events/webinar-thank-you-for-registering/ 
Disallow: /business-school/corporate-relations/recruit-new-talent/request-student-cvs-and-profile-books/thank-you/ 
Disallow: /business-school/sign-ib-knowledge/thank-you/
Disallow: /business-school/programmes/one-to-one-thank-you/

# search
Disallow: /search/

# old courses, update yearly
Disallow: /study/ug/courses/archived/
Disallow: /study/pg/courses/2018/
Disallow: /study/courses/undergraduate/2023/
Disallow: /study/courses/postgraduate-taught/2023/
Disallow: /study/courses/undergraduate/2024/
Disallow: /study/courses/postgraduate-taught/2024/
Disallow: /study/courses/undergraduate/2025/
Disallow: /study/courses/postgraduate-taught/2025/
Disallow: /study/courses/undergraduate/2026/

# old open days
Disallow: /study/visit/undergraduate/on-demand/

# chat to graduates
Disallow: /study/chat-to-our-graduates/

# Campaigns WIP
Disallow: /campaigns/

# development sites and redesign content branches
Disallow: /dev-sites/
Disallow: /redesign-content/
Disallow: /website-testing/

# reporter
Disallow: /staff/reporter/

#Academic Strategy
Disallow: /academic-strategy/

#Welcome week
Disallow: /students/new-students/welcome/

#News redesign
Disallow: /redesign-news/

#College directory
Disallow: /collegedirectory/

#Business School redesign
Disallow: /ib-redesign/

# Sitemap files
Sitemap: https://www.imperial.ac.uk/sitemap.xml
Sitemap: https://www.imperial.ac.uk/business-school/sitemap.xml
Sitemap: https://www.imperial.ac.uk/people/sitemap.xml
sitemap.xml 200 OK
Type URL Set URLs 17242 entries Valid XML Yes
Sample URLs:
A+
Domain Intelligence
imperial.ac.uk — via No registrar listed. This domain is directly registered with Nominet.
PASS
imperial.ac.uk — via No registrar listed. This domain is directly registered with Nominet.
Info::
Registrar: No registrar listed. This domain is directly registered with Nominet.
Warning::
Registrar lock is NOT enabled
The domain can be transferred without an unlock step. Enable registrar lock (clientTransferProhibited) in your registrar's control panel to protect against unauthorized or accidental transfers.
Domain expiry

Unknown

SSL certificate

35 days

Issued by Let's Encrypt

Domain age

Unknown

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

Unknown

2a0c:5bc0:80:100:1::172

Registrar

No registrar listed. This domain is directly registered with Nominet.

Unlocked 7 NS records
Expiry timeline
Today
+1 year
SSL expiry Danger zone (≤30 days)
Recommended actions
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar No registrar listed. This domain is directly registered with Nominet.
Name Servers ns0.ja.net, ns2.ja.net, ns3.ja.net, ns4.ja.net, auth03.ns.uu.net, ns1.surfnet.nl, dns-3.dfn.de
Registrant The JNT Association
Hosting
IP Address 2a0c:5bc0:80:100:1::172
Data source: whois (0.8s)

The domain can be transferred without an unlock step. Enable registrar lock (clientTransferProhibited) in your registrar's control panel to protect against unauthorized or accidental transfers.

Why this matters

Without registrar lock, an attacker who phishes your registrar credentials can transfer the domain in minutes — total brand hijack.

Learn more ▾

Registrar lock (clientTransferProhibited, clientUpdateProhibited, clientDeleteProhibited) requires extra verification before any transfer/update/delete. Every major registrar offers it free. Combined with 2FA on your registrar account, it's the strongest defense against domain hijacking.

Source: ICANN / domain-security best practice

A+
HTTP Probe Timing
Total 124 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
31 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
28 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
30 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
124 ms
Total Time Total request time from DNS lookup through full response.
124 ms

Connection waterfall

DNS Lookup 31 ms TCP Connect 28 ms TLS Handshake 30 ms Server Processing 35 ms Content Transfer 0 ms
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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