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https://nottingham.ac.uk

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
86
GRADE
B
FIX
1
REVIEW
3
PASS
5
INFO
0
Probed from Madrid, Spain
302 Found
Checks
9
5 PASS 3 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.

C
IPv6 Readiness
Action
No IPv6 support
REVIEW
No IPv6 support
Info::
No IPv6 (AAAA) records found
IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.
No IPv6 Support
About 40% of internet users have IPv6. Consider adding AAAA records.

IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.

Why this matters

No AAAA records — same impact as 'no IPv6 (AAAA) records'; IPv6-preferring clients pay extra latency falling back to IPv4.

Source: Google IPv6 stats

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.nottingham.ac.uk/
200https://nottingham.ac.uk/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://nottingham.ac.uk/ https://nottingham.ac.uk/

Consistent

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

Certificate validity

256
days left
0d 30d 60d 90d+

Recommended actions

  • Enable HSTS: Strict-Transport-Security: max-age=31536000; includeSubDomains
  • 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
1 A records, 195 ms lookup
PASS
1 A records, 195 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 185.18.139.133
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
No IPv6 (AAAA) records
Info::
4 nameserver(s) configured
Got: uidapdns02.nottingham.ac.uk, uidapdns01.nottingham.ac.uk, extdns1.warwick.ac.uk, extdns2.warwick.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: 195 ms
Got: 195 ms
A185.18.139.133
AAAA
CNAME
NSuidapdns02.nottingham.ac.uk, uidapdns01.nottingham.ac.uk, extdns1.warwick.ac.uk, extdns2.warwick.ac.uk
MX
10 nottingham-ac-uk.mail.protection.outlook.com
TXT
SPF v=spf1 exists:%{i}._spf.nottingham.ac.uk include:_spf.nottinghamacuk.vueliopm.co...
QuoVadis=cd924184-d16f-4388-a06f-60841f6bfc43
atlassian-domain-verification=3JE9cke8XsM59Oh0tT73QNEhs6Gw2bfMaxiyc9quAuZdW4al9B...
anthropic-domain-verification-p4z2z4=x2uFL7ZXVblci85yjXadTfaR2
adobe-idp-site-verification=def3d1d831162020848a32206541217c00bc2dfbc6199ce745db...
access-domain-verification=5c30dffba43dd9ca58fedebac54fb7913da919b1a1de9d7ab8343...
adobe-idp-site-verification=7f2ebc573bc1769a828f63ec966bd01a1cd05ccf9cc64fb55d97...
1Q6+0cep9R4exJx3RGfB8ObBpeO/kDtYsZYD8jmj1cupaJIDz8KUExk/Qsl2dqgt95g0lyRDLCa6102b...
MS=ms55552287
smartsheet-site-validation=UsjFeY2ICM88UrzI9ciqacTLcpeAJRkR
google-site-verification=L5AVOihugr8sVP2OrvjUPTQBk8cBP9w_FPp82WCtl_E
25E3Z31XTF6U404A703LSJS4SGE9OCQU1D4OAYZH6
202503061523064202abtmsdafw16qhs6h09zgmyk0aejrl45afb38dgzeh5qse9
SERIALUP
apple-domain-verification=xbJn3kEmmhW9Ou4k
MS=ms57537667
ddosx-site-verification=1d20e59f864521a97440915cea9da380eb5a6f183a9d98ad6bc2078c...
google-site-verification=sa8GOryPIpBt5npSI7xAqPehUyiGET3xk-LEZ1GbOig
brevo-code:b1414e0a234265a2faa294058248ae06
CD7F2D11-A9B7-4E5E-BF97-117FD5A2B475
CAALookup not available with standard resolver
Resolved in 195 ms

Multiple A records provide failover if one server goes down.

Why this matters

Single A record means a single point of failure — if that IP goes down, your site is unreachable until DNS TTL expires.

Learn more

Add multiple A records for round-robin failover, or use a managed DNS provider with health-checked failover (Route 53, Cloudflare, NS1). Short TTL (60-300s) lets clients recover faster on outages.

Source: SRE practice / DNS architecture

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), 342 ms total
PASS
1 redirect(s), 342 ms total
Info::
Single redirect
Got: https://nottingham.ac.uk → https://www.nottingham.ac.uk/ (302)
Info::
WWW normalization redirect
Info::
Uses 302 (temporary) redirect
If permanent, use 301 instead.
Got: https://nottingham.ac.uk

https://nottingham.ac.uk

96 ms · HTTP/1.1

302

https://www.nottingham.ac.uk/

246 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://nottingham.ac.uk30296 msHTTP/1.1
2https://www.nottingham.ac.uk/200246 msHTTP/1.1

See the visual redirect chain in the HTTP Probe tab →

If permanent, use 301 instead.

Why this matters

302 (Found) is for genuinely temporary redirects — if this redirect is permanent, switch to 301 to preserve SEO equity.

Learn more

Search engines treat 302 as temporary, keeping the original URL indexed and not transferring full link equity to the destination. Use 301 (Moved Permanently) for permanent redirects (HTTP→HTTPS, www-vs-non-www, URL restructures).

Source: Google Search Central

A+
Crawlability
robots.txt present, sitemap with 21973 URLs
PASS
robots.txt present, sitemap with 21973 URLs
Info::
robots.txt is present
Got: 9536 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 21973 entries
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 9536 B Sitemaps referenced 1 User-agents PetalBot, exabot, Baiduspider, omgilibot, W3C-checklink, GPTBot, cohere-ai, Amzn-SearchBot, Amzn-User, Bytespider, AhrefsBot, TurnitinBot, *, meta-externalagent, Diffbot, MJ12bot, BLEXBot, serpstatbot, YisouSpider, PerplexityBot, Applebot-Extended, ProRataInc, linkdexbot, YandexAdditional, YandexAdditionalBot, EmailSiphon, ClaudeBot, Perplexity-User, sistrix, Mail.RU_Bot, magpie-crawler, ChatGPT-User, anthropic-ai, Google-Extended, Google-CloudVertexBot, CCBot, omgili, SemrushBot, OAI-SearchBot, SemrushBot-SA, YandexBot, Claude-Web, FacebookBot, DotBot, DataForSeoBot, Scrapy, rogerbot, MegaIndex, Amazonbot, YouBot Blocking No — crawling allowed
# ============================================================
# robots.txt — University of Nottingham
# https://www.nottingham.ac.uk/robots.txt
#
# Last reviewed: March 2026 | Web & Digital Team
# Modelled on BBC best practice (bbc.co.uk/robots.txt)
#
# In short: Please use our site like a human, not a robot.
# That means:
# - No scraping, crawling, or systematic extraction of content
# - No use of University content for training or fine-tuning
#   AI models, including large language models (LLMs)
# - No retrieval-augmented generation (RAG), AI-powered search,
#   agentic AI or grounding using University content
# - No creating datasets from University content
# - No text and data mining (TDM) under Article 4 of the EU
#   Directive on Copyright in the Digital Single Market
# - The University of Nottingham reserves all rights in its
#   content and expressly opts out of any statutory exceptions
#   in any jurisdiction for text and data mining, as permitted
#   by law
# ============================================================


# ============================================================
# SECTION 1 — ALL CRAWLERS (single consolidated wildcard block)
#
# BUGS FIXED FROM PREVIOUS FILE (last updated 2024):
#
#   1. Disallow:search.aspx
#      Missing leading slash — ignored by every crawler since 2016.
#      Fixed: Disallow: /search.aspx
#
#   2. Two separate User-agent: * blocks
#      Invalid structure. The second block (containing
#      /*search_keywords=* and /*ContensisTextOnly=*) was likely
#      ignored by many parsers. Both blocks merged here.
#
#   3. Only one of three site search systems was referenced.
#      Three distinct search URL patterns are now all blocked:
#        - /search.aspx          (?q=, ?search_keywords=, ?category=)
#        - /studywithus/ugstudy/search-results.html  (?search=)
#        - /help-and-support/home/help-and-support-search.html
#                                (?searchkeyword=)
# ============================================================

User-agent: *

# ------------------------------------------------------------
# SEARCH RESULT PAGES — all three site search systems
#
# These are internal result pages with no standalone content
# value. Parameterised variants (especially ?search_keywords=)
# have been observed indexed in Bing, including URLs exposing
# personal names (e.g. ?search_keywords=wayne+dougan...).
# One such URL ranked as high as position 9 in Bing (~Feb 2026).
#
# Each search system is blocked three ways:
#   - The bare page path (catches any direct access)
#   - The path$ anchor (exact match, belt-and-braces)
#   - The path? prefix (catches all parameterised variants)
# ------------------------------------------------------------

# 1. Main site search — /search.aspx
#    Parameters seen: ?q=, ?search_keywords=, ?category=
Disallow: /search.aspx
Disallow: /search.aspx$
Disallow: /search.aspx?

# 2. UG study search — /studywithus/ugstudy/search-results.html
#    Parameter seen: ?search=
Disallow: /studywithus/ugstudy/search-results.html
Disallow: /studywithus/ugstudy/search-results.html$
Disallow: /studywithus/ugstudy/search-results.html?

# 3. Help & support search — /help-and-support/home/help-and-support-search.html
#    Parameter seen: ?searchkeyword=
Disallow: /help-and-support/home/help-and-support-search.html
Disallow: /help-and-support/home/help-and-support-search.html$
Disallow: /help-and-support/home/help-and-support-search.html?

# Catch-all query string patterns covering all search parameters
# across all three systems and any future search pages
Disallow: /*?q=*
Disallow: /*?search=*
Disallow: /*?search_keywords=*
Disallow: /*?searchkeyword=*
Disallow: /*?category=*
Disallow: /*ContensisTextOnly=*

# ------------------------------------------------------------
# CMS, ADMIN AND DEVELOPMENT AREAS
# ------------------------------------------------------------
Disallow: /__precms/
Disallow: /beta/
Disallow: /Brand2017/
Disallow: /Zengenti-Test-Folder-2013-Re-Design/
Disallow: /Z-oldsites/
Disallow: /z-oldsites/
Disallow: /nuvision/
Disallow: /xpert/xcloud/
Disallow: /xpert/services/service-xcloud/
Disallow: /toolkits/
Disallow: /common/
Disallow: /common/apps/
Disallow: /includes/
Disallow: /utilities/emailafriend.aspx
Disallow: /utilities/university-statement.aspx
Disallow: /siteelementshomepage/
Disallow: /html-emails/
Disallow: /emailTemplates/
Disallow: /webtechnicaltraining/

# ------------------------------------------------------------
# STATS, SERVER AND LEGACY TECHNICAL PATHS
# ------------------------------------------------------------
Disallow: /stats/
Disallow: /ris/local/
Disallow: /www/server/404.php
Disallow: /~

# ------------------------------------------------------------
# AUTHENTICATED AND INTRANET AREAS
# ------------------------------------------------------------
Disallow: /pharmacy/intranet/
Disallow: /educationstudentintranet/
Disallow: /is/self-reg/
Disallow: /pgapps-portalcontent/

# ------------------------------------------------------------
# PRE-COURSE AND APPLICANT AREAS
# ------------------------------------------------------------
Disallow: /shs-precourse/
Disallow: /education/precourse/
Disallow: /cele-precourse/
Disallow: /N-Ready/
Disallow: /Online-Openday/
Disallow: /ugapplicants/i-have-an-offer/admissions-guide.aspx
Disallow: /ugapplicants/i-have-an-offer/undecided-offer-holders/
Disallow: /UGstudy/Offer-holder/offer-holder-open-day-programmes.aspx
Disallow: /studywithus/Prospectus-Downloads/

# ------------------------------------------------------------
# SCHOOL, DEPARTMENT AND RESEARCH LOCAL AREAS
# ------------------------------------------------------------
Disallow: /nursing/404.php
Disallow: /nursing/qaa/404.php
Disallow: /chinese/about/school-staff.php
Disallow: /physics/research/nano/cgi-bin/
Disallow: /pharmacy/general/news/
Disallow: /cyber/
Disallow: /english/ins/epntest/
Disallow: /teaching/browse/
Disallow: /chemistry/safety/
Disallow: /safety/local/
Disallow: /communicationsmarketing/teams/corporate-marketing/logos/
Disallow: /professionaldevelopment/
Disallow: /jabu/

# ------------------------------------------------------------
# CAMPAIGNS AND TEMPORARY AREAS
# ------------------------------------------------------------
Disallow: /yourfuture/
Disallow: /campaigns/
Disallow: /virtualnottingham/

# ------------------------------------------------------------
# OUTDATED COURSE LISTINGS
# ------------------------------------------------------------
Disallow: /ugstudy/course/2022/

# ------------------------------------------------------------
# SITEMAPS
# ------------------------------------------------------------
Sitemap: https://www.nottingham.ac.uk/sitemap.xml


# ============================================================
# SECTION 2 — ALLOW W3C LINK CHECKER
# Preserves the existing specific rule from the previous file.
# ============================================================

User-agent: W3C-checklink
Disallow:


# ============================================================
# SECTION 3 — AI TRAINING AND LLM CRAWLERS (fully blocked)
# Modelled directly on the BBC's robots.txt.
# These bots harvest content for AI model training and have
# no relevance to search engine visibility.
# Blocking these does NOT affect Google Search or Bing rankings —
# they use entirely separate user agents (Googlebot, Bingbot).
# ============================================================

User-agent: GPTBot
Disallow: /

User-agent: ChatGPT-User
Disallow: /

User-agent: OAI-SearchBot
Disallow: /

User-agent: anthropic-ai
Disallow: /

User-agent: ClaudeBot
Disallow: /

User-agent: Claude-Web
Disallow: /

User-agent: cohere-ai
Disallow: /

User-agent: Google-Extended
Disallow: /

User-agent: Google-CloudVertexBot
Disallow: /

User-agent: CCBot
Disallow: /

User-agent: PerplexityBot
Disallow: /

User-agent: Perplexity-User
Disallow: /

User-agent: Applebot-Extended
Disallow: /

User-agent: Amazonbot
Disallow: /

User-agent: Amzn-SearchBot
Disallow: /

User-agent: Amzn-User
Disallow: /

User-agent: meta-externalagent
Disallow: /

User-agent: FacebookBot
Disallow: /

User-agent: Bytespider
Disallow: /

User-agent: Diffbot
Disallow: /

User-agent: omgili
Disallow: /

User-agent: omgilibot
Disallow: /

User-agent: magpie-crawler
Disallow: /

User-agent: YouBot
Disallow: /

User-agent: ProRataInc
Disallow: /

User-agent: TurnitinBot
Disallow: /


# ============================================================
# SECTION 4 — KNOWN SCRAPER AND SEO AUDIT BOTS (fully blocked)
# These bots contribute to the ~15-20% bot sessions seen in
# MS Clarity and have no legitimate search indexing purpose.
# ============================================================

User-agent: AhrefsBot
Disallow: /

User-agent: SemrushBot
Disallow: /

User-agent: SemrushBot-SA
Disallow: /

User-agent: MJ12bot
Disallow: /

User-agent: DotBot
Disallow: /

User-agent: BLEXBot
Disallow: /

User-agent: DataForSeoBot
Disallow: /

User-agent: PetalBot
Disallow: /

User-agent: Scrapy
Disallow: /

User-agent: serpstatbot
Disallow: /

User-agent: rogerbot
Disallow: /

User-agent: exabot
Disallow: /

User-agent: YisouSpider
Disallow: /

User-agent: sistrix
Disallow: /

User-agent: linkdexbot
Disallow: /

User-agent: MegaIndex
Disallow: /

User-agent: YandexBot
Disallow: /

User-agent: YandexAdditional
Disallow: /

User-agent: YandexAdditionalBot
Disallow: /

User-agent: Baiduspider
Disallow: /

User-agent: Mail.RU_Bot
Disallow: /

User-agent: EmailSiphon
Disallow: /
A+
Domain Intelligence
nottingham.ac.uk — via No registrar listed. This domain is directly registered with Nominet., hosted on ZENGENTI, GB
PASS
nottingham.ac.uk — via No registrar listed. This domain is directly registered with Nominet., hosted on ZENGENTI, GB
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.
Info::
Hosting: ZENGENTI, GB
Got: AS60885
Domain expiry

Unknown

SSL certificate

256 days

Issued by Sectigo Limited

Domain age

Unknown

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

ZENGENTI, GB

ASN AS60885

185.18.139.133

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 185.18.139.133
ASN AS60885 (ZENGENTI, GB)
Provider ZENGENTI, GB
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 161 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
33 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
30 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
34 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
161 ms
Total Time Total request time from DNS lookup through full response.
161 ms

Connection waterfall

DNS Lookup 33 ms TCP Connect 30 ms TLS Handshake 34 ms Server Processing 64 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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