Skip to content
https://lrb.co.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
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.lrb.co.uk/
200https://lrb.co.uk/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://lrb.co.uk/ → https://www.lrb.co.uk/

Consistent

B
TLS Certificate Expiry & Recommendations
71 days until leaf cert expires — 4 issues to address
REVIEW

Certificate validity

71
days left
0d 30d 60d 90d+

Recommended actions

  • Extend HSTS max-age to at least 31536000 (1 year) to meet the preload list criteria
  • Add includeSubDomains to the HSTS directive
  • 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
4 A records, 53 ms lookup
PASS
4 A records, 53 ms lookup
Info::
Resolves to 4 IPv4 address(es)
Got: 151.101.130.132, 151.101.194.132, 151.101.66.132, 151.101.2.132
Info::
No IPv6 (AAAA) records
Info::
4 nameserver(s) configured
Got: ns-1607.awsdns-08.co.uk, ns-383.awsdns-47.com, ns-1386.awsdns-45.org, ns-901.awsdns-48.net
Info::
4 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: 53 ms
Got: 53 ms
A151.101.130.132, 151.101.194.132, 151.101.66.132, 151.101.2.132
AAAA—
CNAME—
NSns-1607.awsdns-08.co.uk, ns-383.awsdns-47.com, ns-1386.awsdns-45.org, ns-901.awsdns-48.net
MX
10 mx01.hornetsecurity.com
20 mx02.hornetsecurity.com
30 mx03.hornetsecurity.com
40 mx04.hornetsecurity.com
TXT
orki1pf5pv1afmb32t7spfc68t
SPF v=spf1 include:spf.hornetsecurity.com include:_spf.google.com include:_spf.creat...
fastly-domain-delegation-nksadfgtbkj-462739-2-3-2022
google-site-verification=HW8-QtSG6WcETf4qNyeqSCYbCoYrDp01WxEHWGXI8ts
d710vps8m9damr3o16hvergpgu
atlassian-domain-verification=sUcBmOvImIYCsAYdL2UQ28y/tsYXtnnsZMYdHAsHVOnHj/WkVe...
google-site-verification=5UaizS-63qQ1HjgXO3moMG_HoqieIwEtsroF-nlArdI
CAALookup not available with standard resolver
Resolved in 53 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), 262 ms total
PASS
1 redirect(s), 262 ms total
Info::
Single redirect
Got: https://lrb.co.uk → https://www.lrb.co.uk/ (301)
Info::
WWW normalization redirect

https://lrb.co.uk

5 ms · HTTP/1.1

301

https://www.lrb.co.uk/

257 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://lrb.co.uk3015 msHTTP/1.1
2https://www.lrb.co.uk/200257 msHTTP/1.1

See the visual redirect chain in the HTTP Probe tab →

A+
Crawlability
robots.txt present, sitemap with 31 URLs
PASS
robots.txt present, sitemap with 31 URLs
Info::
robots.txt is present
Got: 1965 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 31 entries
Info::
Sitemap index with 31 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 1965 B Sitemaps referenced 0 User-agents anthropic-ai, Claude-Web, Applebot-Extended, FacebookBot, Bytespider, YouBot, Google-Extended, anthropic-ai/1.0, PerplexityBot, CCBot, Diffbot, *, GPTBot, ChatGPT-User Blocking No — crawling allowed
# Robots.txt updated 15/12/2025
# Block AI agents and training crawlers
# Allow search engines and other legitimate crawlers

User-agent: GPTBot
Disallow: /blog/
Disallow: /the-paper/
Disallow: /podcasts-and-videos/podcasts/
Disallow: /podcasts-and-videos/videos/
Disallow: /courses/


User-agent: ChatGPT-User
Disallow: /blog/
Disallow: /the-paper/
Disallow: /podcasts-and-videos/podcasts/
Disallow: /podcasts-and-videos/videos/
Disallow: /courses/


User-agent: Google-Extended
Disallow: /blog/
Disallow: /the-paper/
Disallow: /podcasts-and-videos/podcasts/
Disallow: /podcasts-and-videos/videos/
Disallow: /courses/


User-agent: anthropic-ai
Disallow: /blog/
Disallow: /the-paper/
Disallow: /podcasts-and-videos/podcasts/
Disallow: /podcasts-and-videos/videos/
Disallow: /courses/


User-agent: Claude-Web
Disallow: /blog/
Disallow: /the-paper/
Disallow: /podcasts-and-videos/podcasts/
Disallow: /podcasts-and-videos/videos/
Disallow: /courses/


User-agent: anthropic-ai/1.0
Disallow: /blog/
Disallow: /the-paper/
Disallow: /podcasts-and-videos/podcasts/
Disallow: /podcasts-and-videos/videos/
Disallow: /courses/


User-agent: PerplexityBot
Disallow: /blog/
Disallow: /the-paper/
Disallow: /podcasts-and-videos/podcasts/
Disallow: /podcasts-and-videos/videos/
Disallow: /courses/


User-agent: Applebot-Extended
Disallow: /blog/
Disallow: /the-paper/
Disallow: /podcasts-and-videos/podcasts/
Disallow: /podcasts-and-videos/videos/
Disallow: /courses/


User-agent: FacebookBot
Disallow: /blog/
Disallow: /the-paper/
Disallow: /podcasts-and-videos/podcasts/
Disallow: /podcasts-and-videos/videos/
Disallow: /courses/


User-agent: Bytespider
Disallow: /blog/
Disallow: /the-paper/
Disallow: /podcasts-and-videos/podcasts/
Disallow: /podcasts-and-videos/videos/
Disallow: /courses/


User-agent: CCBot
Disallow: /

User-agent: YouBot
Disallow: /

User-agent: Diffbot
Disallow: /


User-agent: *
Disallow: /Media/
Disallow: /4d422a2b-60d3-457f-8754-e8a09ebe3fb1
sitemap.xml 200 OK
Type Sitemap Index URLs 31 entries Valid XML Yes
Child Sitemaps:
A+
Domain Intelligence
lrb.co.uk — via AIR IT GROUP LIMITED, 29 years, 11 months old, hosted on Fastly
PASS
lrb.co.uk — via AIR IT GROUP LIMITED, 29 years, 11 months old, hosted on Fastly
Info::
Domain registered until Oct 21, 2026 (6 months remaining)
Info::
DNSSEC is not enabled
DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.
Info::
Registrar: AIR IT GROUP LIMITED
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: Fastly
Got: AS54113
Domain expiry

130 days

October 21, 2026

SSL certificate

71 days

Issued by GlobalSign nv-sa

Domain age

29 years, 11 months

Registered October 21, 1996

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Fastly

ASN AS54113

151.101.130.132

Registrar

AIR IT GROUP LIMITED

Unlocked 4 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Enable DNSSEC to protect visitors from DNS spoofing
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar AIR IT GROUP LIMITED
Created October 21, 1996 (29 years, 11 months ago)
Expires October 21, 2026 (6 months)
Last Updated September 21, 2025
Name Servers ns-1386.awsdns-45.org., ns-1607.awsdns-08.co.uk., ns-383.awsdns-47.com., ns-901.awsdns-48.net.
DNSSEC Not enabled
Hosting
IP Address 151.101.130.132
ASN AS54113 (FASTLY - Fastly, Inc., US)
Provider Fastly
Data source: rdap (0.5s)

DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.

Why this matters

Without DNSSEC, an attacker who can poison your DNS can hijack your domain — and SSL certs alone don't stop them.

Learn more ▾

DNSSEC adds cryptographic signatures to DNS records, preventing forged responses from poisoning resolver caches. Without it, an attacker who controls the network path can redirect your domain to a malicious server before any HTTPS handshake happens. Most modern registrars (Cloudflare, Google Domains, Route 53) enable it with one toggle.

Source: ICANN / RFC 4033

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 51 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
47 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
0 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
3 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
51 ms
Total Time Total request time from DNS lookup through full response.
51 ms

Connection waterfall

DNS Lookup 47 ms TCP Connect 0 ms TLS Handshake 3 ms Server Processing 1 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