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Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
80
GRADE
B
FIX
1
REVIEW
2
PASS
6
INFO
0
Probed from Santa Clara, United States
301 Moved Permanently
Checks
9
6 PASS 2 REVIEW 1 FIX
D
URL Variants
Action
www/non-www, trailing slash, HTTP→HTTPS
FIX
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
Critical::
HTTP version does not redirect to HTTPS
Got: HTTP 301 Expected: 301 redirect to HTTPS

www / non-www

200https://www.tate.org.uk/
200https://tate.org.uk/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://tate.org.uk/ → http://www.tate.org.uk/

HTTP version does not redirect to HTTPS

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

Certificate validity

289
days left
0d 30d 60d 90d+

Recommended actions

  • Add includeSubDomains to the HSTS directive
  • 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
4 A records, 1408 ms lookup
PASS
4 A records, 1408 ms lookup
Info::
Resolves to 4 IPv4 address(es)
Got: 151.101.1.91, 151.101.129.91, 151.101.193.91, 151.101.65.91
Info::
No IPv6 (AAAA) records
Info::
2 nameserver(s) configured
Got: auth0.exponential-e.net, auth1.exponential-e.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
Warning::
DNS resolution is slow (1408 ms)
Slow DNS adds latency to every page load. Consider a faster DNS provider.
Got: 1408 ms
A151.101.1.91, 151.101.129.91, 151.101.193.91, 151.101.65.91
AAAA—
CNAME—
NSauth0.exponential-e.net, auth1.exponential-e.net
MX
10 mta01.scanscope.net
20 mail3.scanscope.net
30 mail2.scanscope.net
40 mail1.scanscope.net
TXT
Fe9W1qq1/ILVfjzPlQGPo28ZniYTp4TR8PvxnL6w0TofuoUbEhZpiKmmcCI9PCU1IPQnm+9KcTmZo6HS...
_betterimpact-rewrite-sender
adobe-idp-site-verification=2445f05c6406181aa27524ee4194ac04b856225133a5d9931ab9...
apple-domain-verification=Zl1PsShp81Rq65QH
asv=189b85e6d9aa28c1ab3a61fd7c995fe4
atlassian-domain-verification=ZcNK5uVoII6BrWnqXv9oa/w5vvlpNxzvH7w1aBjM3Ua3NaxDcT...
comment: workingat.tate.org.uk comment HR recruitment on peoplesolutions.it usin...
google-site-verification=Lo-sgmH7RAKP5tqysyjoH0NRKSoiF0WpuFhba0Z0Pzw
tate.org.uk MS=ms69829943
SPF v=spf1 include:_u.tate.org.uk._spf.smart.ondmarc.com ~all
google-site-verification=K0aaawMFBDfI7tj6sAlNNqGbM4IzVpF28_Kiva7BnpI
0ed1fe018adedfeb51a2db4b598320c703584e0237
CAALookup not available with standard resolver
Resolved in 1408 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
Redirect Chain
1 redirect(s), 572 ms total
PASS
1 redirect(s), 572 ms total
Info::
Single redirect
Got: https://tate.org.uk → https://www.tate.org.uk/ (301)
Info::
WWW normalization redirect
Info::
Redirect overhead: 572 ms total
Got: 572 ms

https://tate.org.uk

157 ms · HTTP/1.1

301

https://www.tate.org.uk/

415 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://tate.org.uk301157 msHTTP/1.1Varnish
2https://www.tate.org.uk/200415 msHTTP/1.1gunicorn

See the visual redirect chain in the HTTP Probe tab →

A+
Crawlability
robots.txt present, sitemap with 30 URLs
PASS
robots.txt present, sitemap with 30 URLs
Info::
robots.txt is present
Got: 176 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 30 entries
Info::
Sitemap index with 30 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 176 B Sitemaps referenced 0 User-agents * Blocking No — crawling allowed
User-Agent: *
Disallow: /search
Disallow: /art/artworks/artworks-custom.xml
Disallow: /art/artists/artists-custom.xml
Disallow: /netart/mongrel/stives/information.htm
Allow: /
sitemap.xml 200 OK
Type Sitemap Index URLs 30 entries Valid XML Yes
Child Sitemaps:
A+
Domain Intelligence
tate.org.uk — via Total Web Solutions Ltd t/a Total Registrations, 30 years, 7 months old, hosted on Fastly
PASS
tate.org.uk — via Total Web Solutions Ltd t/a Total Registrations, 30 years, 7 months old, hosted on Fastly
Info::
Domain registered until Feb 27, 2027 (10 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: Total Web Solutions Ltd t/a Total Registrations
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

257 days

February 27, 2027

SSL certificate

289 days

Issued by Sectigo Limited

Domain age

30 years, 7 months

Registered February 27, 1996

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Fastly

ASN AS54113

151.101.193.91

Registrar

Total Web Solutions Ltd t/a Total Registrations

Unlocked 2 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 Total Web Solutions Ltd t/a Total Registrations
Created February 27, 1996 (30 years, 7 months ago)
Expires February 27, 2027 (10 months)
Last Updated January 5, 2026
Name Servers auth0.exponential-e.net., auth1.exponential-e.net.
DNSSEC Not enabled
Hosting
IP Address 151.101.193.91
ASN AS54113 (FASTLY - Fastly, Inc., US)
Provider Fastly
Data source: rdap (1.0s)

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

Connection waterfall

DNS Lookup 140 ms TCP Connect 2 ms TLS Handshake 8 ms Server Processing 2 ms Content Transfer 0 ms
A+
CDN & Delivery
Fastly (HIT)
PASS
Fastly (HIT)
Info::
Site is served via Fastly CDN
Got: x-served-by: cache-sjc1000129-SJC
Info::
CDN cache status: HIT
CDN Detected: Fastly
Provider Fastly Cache Status HIT Evidence x-served-by: cache-sjc1000129-SJC
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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