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https://uea.ac.uk

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
82
GRADE
B
FIX
1
REVIEW
4
PASS
4
INFO
0
Probed from Singapore, Singapore
301 Moved Permanently
Checks
9
4 PASS 4 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
Redirect Chain
1 redirect(s), 1583 ms total
REVIEW
1 redirect(s), 1583 ms total
Info::
Single redirect
Got: https://uea.ac.uk → https://www.uea.ac.uk:443/ (301)
Info::
WWW normalization redirect
Warning::
Redirect overhead: 1583 ms total
Got: 1583 ms

https://uea.ac.uk

519 ms · HTTP/1.1

301

https://www.uea.ac.uk:443/

1064 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://uea.ac.uk301519 msHTTP/1.1
2https://www.uea.ac.uk:443/2001064 msHTTP/1.1Server

See the visual redirect chain in the HTTP Probe tab →

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.uea.ac.uk/
200https://uea.ac.uk/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://uea.ac.uk/ → https://www.uea.ac.uk:443/

Consistent

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

Certificate validity

243
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, 487 ms lookup
PASS
2 A records, 487 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 13.248.176.6, 76.223.53.114
Info::
No IPv6 (AAAA) records
Info::
3 nameserver(s) configured
Got: dns11.uea.ac.uk, dns10.uea.ac.uk, ns3.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
Warning::
DNS resolution is slow (487 ms)
Slow DNS adds latency to every page load. Consider a faster DNS provider.
Got: 487 ms
A13.248.176.6, 76.223.53.114
AAAA—
CNAME—
NSdns11.uea.ac.uk, dns10.uea.ac.uk, ns3.ja.net
MX
0 uea-ac-uk.mail.protection.outlook.com
TXT
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDN0wCd+j2p2Sm8N3clyset7q...
google-site-verification=RfV4JyEwpciapRx3PQ7j1iE8vS21JWlpZDssZR5d3TU
SPF v=spf1 include:spf-a.uea.ac.uk include:spf-b.uea.ac.uk include:spf.protection.ou...
3j4X44sTn/4zx0qs5SlivjlBLa9HKK6NHcQ1l9ozQQaTIsMqWZneHT/CDtrgKSjvXLJ0ksEblUQ8L7Rd...
atlassian-domain-verification=ySmAlP4geftA/jK56zPZ8yiDSd+iOywlum3A4HwhO2kUq/Q843...
google-site-verification=iHR1pKd8DigEYcAY6vbWKUVqGUpXGoQJdCnQnBsVyaE
google-site-verification=2XfWpu5hhqoRSpiJjFwpc_Dr2Ao3cT1gDzNEuWg7mlU
amazonses:+S9p2z1JjAxalci77ML3e9MJP/I/c63WWl8ozgdSTnc=
UQ6dd8cjFmzekkbHZrgWja8hNZdR2ag0b485F4jHTmo=
peJTF8cqZ9BDOsGM+ADZdkwcNuoSvEKIpRPnA3I/6bA=
CAALookup not available with standard resolver
Resolved in 487 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.

Slow DNS adds latency to every page load. Consider a faster DNS provider.

Why this matters

DNS resolution is slow — anycast DNS providers (Cloudflare, Route 53) typically resolve <50ms globally.

Source: DNS performance benchmarks

A+
Crawlability
robots.txt present, sitemap with 7013 URLs
PASS
robots.txt present, sitemap with 7013 URLs
Info::
robots.txt is present
Got: 110 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 7013 entries
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 110 B Sitemaps referenced 1 User-agents * Blocking No — crawling allowed
# Algolia-Crawler-Verif: 9841DBDA1EFC4BB3

User-agent: *
Allow: /

Sitemap: https://www.uea.ac.uk/sitemap.xml
sitemap.xml 200 OK
Type URL Set URLs 7013 entries Valid XML Yes
Sample URLs:
A+
Domain Intelligence
uea.ac.uk — via No registrar listed. This domain is directly registered with Nominet., hosted on AWS
PASS
uea.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

243 days

Issued by Amazon

Domain age

Unknown

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

AWS

ASN AS16509

13.248.176.6

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 13.248.176.6
ASN AS16509 (AMAZON-02 - Amazon.com, Inc., US)
Provider AWS
Data source: whois (2.0s)

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 527 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
2 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.
349 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
528 ms
Total Time Total request time from DNS lookup through full response.
528 ms

Connection waterfall

DNS Lookup 2 ms TCP Connect 1 ms TLS Handshake 349 ms Server Processing 176 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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