Skip to content
https://citizensadvice.org.uk

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
86
GRADE
B
FIX
0
REVIEW
4
PASS
5
INFO
0
Probed from Madrid, Spain
301 Moved Permanently
Checks
9
5 PASS 4 REVIEW
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.citizensadvice.org.uk/
200https://citizensadvice.org.uk/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://citizensadvice.org.uk/ https://citizensadvice.org.uk/

Consistent

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

Certificate validity

79
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
B
CDN & Delivery
AWS CloudFront (LambdaGeneratedResponse from cloudfront)
REVIEW
AWS CloudFront (LambdaGeneratedResponse from cloudfront)
Info::
Site is served via AWS CloudFront CDN (edge: MAD53-P8)
Got: x-amz-cf-id: bXnf0X0LUdzzIbkziO7g4i0G39qgxchhWVQtCt1d0c_qW7B1TWhj8w==
Info::
CDN cache status: LambdaGeneratedResponse from cloudfront
CDN Detected: AWS CloudFront
Provider AWS CloudFront Cache Status LambdaGeneratedResponse from cloudfront Evidence x-amz-cf-id: bXnf0X0LUdzzIbkziO7g4i0G39qgxchhWVQtCt1d0c_qW7B1TWhj8w==
A+
DNS Records
4 A records, 46 ms lookup
PASS
4 A records, 46 ms lookup
Info::
Resolves to 4 IPv4 address(es)
Got: 99.84.9.111, 99.84.9.22, 99.84.9.41, 99.84.9.120
Info::
No IPv6 (AAAA) records
Info::
4 nameserver(s) configured
Got: ns-1742.awsdns-25.co.uk, ns-482.awsdns-60.com, ns-1033.awsdns-01.org, ns-814.awsdns-37.net
Info::
2 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: 46 ms
Got: 46 ms
A99.84.9.111, 99.84.9.22, 99.84.9.41, 99.84.9.120
AAAA
CNAME
NSns-1742.awsdns-25.co.uk, ns-482.awsdns-60.com, ns-1033.awsdns-01.org, ns-814.awsdns-37.net
MX
10 eu-smtp-inbound-2.mimecast.com
10 eu-smtp-inbound-1.mimecast.com
TXT
atlassian-domain-verification=EUTk8mCY/huBYkcQtzeUp8JEaUaDXKeRouXtVoh7j8ZCeelYEM...
amazonses:0DG3hUyEeyD+5OnEYW/DRtS/UpnGy4EipHwTvW06w0c=
SPF v=spf1 include:_spf.google.com include:eu._netblocks.mimecast.com include:_spf.c...
apple-domain-verification=YN3xNcHIYrhhsHDV
google-site-verification=PDGxmIIvmm5aRqTqn0SFuCe46XwwZ9HFJZCrfBdj8a0
ZOOM_verify_OdMQm2GGfQIRrXAqPI6jIw
CAALookup not available with standard resolver
Resolved in 46 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), 304 ms total
PASS
1 redirect(s), 304 ms total
Info::
Single redirect
Got: https://citizensadvice.org.uk → https://www.citizensadvice.org.uk/ (301)
Info::
WWW normalization redirect

https://citizensadvice.org.uk

101 ms · HTTP/1.1

301

https://www.citizensadvice.org.uk/

203 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://citizensadvice.org.uk301101 msHTTP/1.1CloudFront
2https://www.citizensadvice.org.uk/200203 msHTTP/1.1nginx

See the visual redirect chain in the HTTP Probe tab →

A+
Crawlability
robots.txt present, sitemap with 3 URLs
PASS
robots.txt present, sitemap with 3 URLs
Info::
robots.txt is present
Got: 99 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 3 entries
Info::
Sitemap index with 3 child sitemaps
Info::
robots.txt does not reference a sitemap
Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

Why this matters

robots.txt omits Sitemap: directive — crawlers must fetch /sitemap.xml by convention; reliable but missing the explicit hint.

Source: sitemaps.org

robots.txt 200 OK
Size 99 B Sitemaps referenced 0 User-agents Blocking No — crawling allowed
# See https://www.robotstxt.org/robotstxt.html for documentation on how to use the robots.txt file

A+
Domain Intelligence
citizensadvice.org.uk — via Gandi [Tag = GANDI], 27 years, 4 months old, hosted on AWS
PASS
citizensadvice.org.uk — via Gandi [Tag = GANDI], 27 years, 4 months old, hosted on AWS
Info::
Domain registered until Apr 28, 2027 (1 years remaining)
Info::
Registrar: Gandi [Tag = GANDI]
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

286 days

April 28, 2027

SSL certificate

79 days

Issued by Amazon

Domain age

27 years, 4 months

Registered April 28, 1999

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

AWS

ASN AS16509

99.84.9.111

Registrar

Gandi [Tag = GANDI]

Unlocked 4 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar Gandi [Tag = GANDI]
Created April 28, 1999 (27 years, 4 months ago)
Expires April 28, 2027 (1 years)
Last Updated March 24, 2026
Name Servers ns-1033.awsdns-01.org, ns-1742.awsdns-25.co.uk, ns-482.awsdns-60.com, ns-814.awsdns-37.net
Hosting
IP Address 99.84.9.111
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 141 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
50 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.
4 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
141 ms
Total Time Total request time from DNS lookup through full response.
141 ms

Connection waterfall

DNS Lookup 50 ms TCP Connect 1 ms TLS Handshake 4 ms Server Processing 86 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