Skip to content
https://exeter.ac.uk

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
87
GRADE
B
FIX
1
REVIEW
3
PASS
5
INFO
0
Probed from Madrid, Spain
301 Moved Permanently
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.exeter.ac.uk/
200https://exeter.ac.uk/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://exeter.ac.uk/ → https://exeter.ac.uk:443/

Consistent

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

Certificate validity

151
days left
0d 30d 60d 90d+

Recommended actions

  • Add the preload directive and submit to hstspreload.org once max-age + includeSubDomains are in place
  • 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, 56 ms lookup
PASS
2 A records, 56 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 35.71.176.228, 52.223.6.128
Info::
No IPv6 (AAAA) records
Info::
3 nameserver(s) configured
Got: dns0.ex.ac.uk, dns1.ex.ac.uk, ns4.ja.net
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: 56 ms
Got: 56 ms
A35.71.176.228, 52.223.6.128
AAAA—
CNAME—
NSdns0.ex.ac.uk, dns1.ex.ac.uk, ns4.ja.net
MX
0 exeter-ac-uk.mail.protection.outlook.com
TXT
EPtg4ahA6C1hOmnwuDgBAujBkDUVI1XeTi1tTlId4LsW9wmT4vWj7W6YUGD92rFeGcSRrZF7qlMFuO3/...
have-i-been-pwned-verification=e0a1010d934a9b34163a15e3aa26e53a
QuoVadis=52712c9b-b41d-4b85-9be0-a0dc5e908fbd
google-site-verification=4ajTWsyY-ES8pDNJgWos83a4IJI9EQz3bMk0y3O5q6E
zone-ownership-verification-157cc7aecc78f00c7c2193df63d5a534bdc70975f05ba16af4e4...
z0tntkvmp9761z27xhk3bzdks8lrkq2j
teamviewer-sso-verification=b882b8278cff44a2a373b4fadf8307eb
ZOOM_verify_TWlHxt-vQgqgsnf5GQXqrA
atlassian-domain-verification=HnEX/JE9jwBEybWkbT2argSPaRUfGk02K3nqx6CEUFGtZ/yEWR...
externalviews
adobe-idp-site-verification=55335b783abab162a3b1339ee1057daba44492dc25fe3682f668...
google-site-verification=-lPIUIhthgd6EnL9RMb40ZB7qK7VTNgDfW6tIQV_Y_A
SPF v=spf1 a include:_spf.exeter.ac.uk include:_spf2.exeter.ac.uk include:spf.protec...
access-domain-verification=10abeef89661d3e89e498b62974218b41b443719ab0fab15fd487...
CAALookup not available with standard resolver
Resolved in 56 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), 184 ms total
PASS
1 redirect(s), 184 ms total
Info::
Single redirect
Got: https://exeter.ac.uk → https://www.exeter.ac.uk/ (301)
Info::
WWW normalization redirect

https://exeter.ac.uk

131 ms · HTTP/1.1

301

https://www.exeter.ac.uk/

53 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://exeter.ac.uk301131 msHTTP/1.1Apache
2https://www.exeter.ac.uk/20053 msHTTP/1.1Apache

See the visual redirect chain in the HTTP Probe tab →

A+
Crawlability
robots.txt present, sitemap with 750 URLs
PASS
robots.txt present, sitemap with 750 URLs
Info::
robots.txt is present
Got: 2080 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 750 entries
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 2080 B Sitemaps referenced 18 User-agents Googlebot, Bingbot, DuckDuckBot, Baiduspider Blocking No — crawling allowed
User-agent: Googlebot

Disallow: /staff/policies/calendar/archive/

Disallow: /*.pdf$

Disallow: /*.doc$

Disallow: /*.zip$

Disallow: /*.csv$

Disallow: /*.xls$

Disallow: /dev/


User-agent: Bingbot

Disallow: /staff/policies/calendar/archive/

Disallow: /*.pdf$

Disallow: /*.doc$

Disallow: /*.zip$

Disallow: /*.csv$

Disallow: /*.xls$

Disallow: /dev/


User-agent: DuckDuckBot

Disallow: /staff/policies/calendar/archive/

Disallow: /*.pdf$

Disallow: /*.doc$

Disallow: /*.zip$

Disallow: /*.csv$

Disallow: /*.xls$

Disallow: /dev/


User-agent: Baiduspider

Disallow: /staff/policies/calendar/archive/

Disallow: /*.pdf$

Disallow: /*.doc$

Disallow: /*.zip$

Disallow: /*.csv$

Disallow: /*.xls$

Disallow: /dev/



Sitemap: https://www.exeter.ac.uk/v8media/global/sitemaps/study.xml

Sitemap: https://www.exeter.ac.uk/v8media/global/sitemaps/open-days.xml

Sitemap: https://www.exeter.ac.uk/v8media/global/sitemaps/clearing.xml

Sitemap: https://www.exeter.ac.uk/v8media/global/sitemaps/funding-database.xml

Sitemap: https://www.exeter.ac.uk/v8media/global/sitemaps/student-life.xml

Sitemap: https://www.exeter.ac.uk/v8media/global/sitemaps/international-students.xml

Sitemap: https://www.exeter.ac.uk/v8media/global/sitemaps/online-courses.xml


Sitemap: https://www.exeter.ac.uk/v8media/global/sitemaps/research.xml

Sitemap: https://www.exeter.ac.uk/v8media/global/sitemaps/ssis-research-projects.xml


Sitemap: https://www.exeter.ac.uk/v8media/global/sitemaps/about.xml

Sitemap: https://www.exeter.ac.uk/v8media/global/sitemaps/our-campuses.xml


Sitemap: https://www.exeter.ac.uk/v8media/global/sitemaps/alumnisupporters.xml

Sitemap: https://www.exeter.ac.uk/v8media/global/sitemaps/global.xml

Sitemap: https://www.exeter.ac.uk/v8media/global/sitemaps/faculties.xml

Sitemap: https://www.exeter.ac.uk/v8media/global/sitemaps/departments.xml

Sitemap: https://www.exeter.ac.uk/v8media/global/sitemaps/misc.xml

Sitemap: https://www.exeter.ac.uk/v8media/global/sitemaps/staff.xml

Sitemap: https://www.exeter.ac.uk/v8media/global/sitemaps/students.xml
sitemap.xml 200 OK
Type URL Set URLs 750 entries Valid XML Yes
Sample URLs:
A+
Domain Intelligence
exeter.ac.uk — via No registrar listed. This domain is directly registered with Nominet., hosted on AWS
PASS
exeter.ac.uk — via No registrar listed. This domain is directly registered with Nominet., hosted on AWS
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: AWS
Got: AS16509
Domain expiry

Unknown

SSL certificate

151 days

Issued by Amazon

Domain age

Unknown

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

AWS

ASN AS16509

35.71.176.228

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 35.71.176.228
ASN AS16509 (AMAZON-02 - Amazon.com, Inc., US)
Provider AWS
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 146 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
38 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
1 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
71 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
146 ms
Total Time Total request time from DNS lookup through full response.
146 ms

Connection waterfall

DNS Lookup 38 ms TCP Connect 1 ms TLS Handshake 71 ms Server Processing 37 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.

Send Feedback