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https://english-heritage.org.uk

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
85
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.english-heritage.org.uk/
200https://english-heritage.org.uk/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://english-heritage.org.uk/ https://www.english-heritage.org.uk/

Consistent

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

Certificate validity

338
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
Cloudflare
REVIEW
Cloudflare
Info::
Site is served via Cloudflare CDN (edge: MAD)
Got: cf-ray: 9f079987dd950cdb-MAD
CDN Detected: Cloudflare
Provider Cloudflare Evidence cf-ray: 9f079987dd950cdb-MAD
A+
DNS Records
1 A records, 69 ms lookup
PASS
1 A records, 69 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 217.114.94.2
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
No IPv6 (AAAA) records
Info::
4 nameserver(s) configured
Got: ns1-05.azure-dns.com, ns3-05.azure-dns.org, ns2-05.azure-dns.net, ns4-05.azure-dns.info
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: 69 ms
Got: 69 ms
A217.114.94.2
AAAA
CNAME
NSns1-05.azure-dns.com, ns3-05.azure-dns.org, ns2-05.azure-dns.net, ns4-05.azure-dns.info
MX
10 englishheritage-org-uk01i.mail.protection.outlook.com
TXT
SPF v=spf1 mx include:spf.protection.outlook.com include:spf.amris.com ip4:194.62.32...
facebook-domain-verification=52ttf3ph3issbd8o63u46olahgnzow
MS=ms95978956
CAALookup not available with standard resolver
Resolved in 69 ms

Multiple A records provide failover if one server goes down.

Why this matters

Single A record means a single point of failure — if that IP goes down, your site is unreachable until DNS TTL expires.

Learn more

Add multiple A records for round-robin failover, or use a managed DNS provider with health-checked failover (Route 53, Cloudflare, NS1). Short TTL (60-300s) lets clients recover faster on outages.

Source: SRE practice / DNS architecture

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), 298 ms total
PASS
1 redirect(s), 298 ms total
Info::
Single redirect
Got: https://english-heritage.org.uk → https://www.english-heritage.org.uk/ (301)
Info::
WWW normalization redirect

https://english-heritage.org.uk

27 ms · HTTP/1.1

301

https://www.english-heritage.org.uk/

271 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://english-heritage.org.uk30127 msHTTP/1.1cloudflare
2https://www.english-heritage.org.uk/200271 msHTTP/1.1cloudflare

See the visual redirect chain in the HTTP Probe tab →

A+
Crawlability
robots.txt present, sitemap with 7070 URLs
PASS
robots.txt present, sitemap with 7070 URLs
Info::
robots.txt is present
Got: 1941 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 7070 entries
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 1941 B Sitemaps referenced 0 User-agents * Blocking No — crawling allowed
#                     
# EH Robots.txt
# 
##############################################
#          .----------.
#          :`.---------`.          .-----------.
#          '.|_.------..'          :`.----------`.  .-----.._
#           | ||    | ||           `.|__.------..' |`--..__.'|
#           | ||__..| ||-._ ___    | | |.... | ||-.|`--.._ |.'----.
#    _ .:::/ / |    | ||   ___  `--| | |  _  | ||  | | | | |\      `.
#  .` `.  -'.|_|    `.||  /`.  `.  '.|_\     `.|/  | | | | ||`.      `.
# / `. _`.  `-   _     _  |  `.__`   _           _ `.|.' | || |\       \
# \   /   \ _            _ `. |   |     `--   _          '.|| | `.______.
# /`. |   |  .'`---...____   `'---' _       _          _    | | |'------'
# | /`.-_.' |`---...___ . |  `--      ______________________`.|_| |  ` |
# | | | '|  `---...____|.'    _     |`._-_______-______-_____`. | |    |
#.| | |  | _ |  .---. | '| `-       '.|  ' ' '  '  '  '  ' ' ' || |    |  
#' `| |  |   /  ||  |'|  |      _    |'.__.-------.__.-----.__.'| | .- | \
#|  | |' |   |  ||  | |  |   `--     | |..|    |  |''|   | |::| `.|____| |
#\   `|__| _ |  || _| '. | .`-._     | |  |    |  |  |   | |  | `--     .'
# '.         |  ||  |  | | |`.  `. _ | |  |    |  |  |   | |  |   _    `.
#   '-. _    \__|   |  | | |  `.__`. | |  | __ |  |  |___| |  |  `-- _  |
#      `''''.    _  `-.|.' '.  |   |  `|__| ___ `.|__| _ `.|__|        /
#           :    _    _      `.|_.-'   `-             _          _   .'
#            `-._______.::.__     `-     _      _       ___.:::.__.-'
#                            `----.....__..------------`
#
#     "We are not makers of history. We are made by history." Martin Luther King
#
##############################################
User-agent: *
Disallow : /archived-for-delete/
Disallow : /commerce/checkout/
Disallow : /commerce/basket/
Disallow : /administration/
#
# Last updated 26/02/2018
# Please contact the Digital Marketing Team before editing. 
#
A+
Domain Intelligence
english-heritage.org.uk — via Ionos SE [Tag = 1AND1], 29 years, 10 months old, hosted on EPISERVER_AS, SE
PASS
english-heritage.org.uk — via Ionos SE [Tag = 1AND1], 29 years, 10 months old, hosted on EPISERVER_AS, SE
Info::
Domain registered until Nov 13, 2026 (6 months remaining)
Info::
Registrar: Ionos SE [Tag = 1AND1]
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: EPISERVER_AS, SE
Got: AS30811
Domain expiry

152 days

November 13, 2026

SSL certificate

338 days

Issued by DigiCert Inc

Domain age

29 years, 10 months

Registered November 13, 1996

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

EPISERVER_AS, SE

ASN AS30811

217.114.94.2

Registrar

Ionos SE [Tag = 1AND1]

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 Ionos SE [Tag = 1AND1]
Created November 13, 1996 (29 years, 10 months ago)
Expires November 13, 2026 (6 months)
Last Updated November 12, 2025
Name Servers ns1-05.azure-dns.com, ns2-05.azure-dns.net, ns3-05.azure-dns.org, ns4-05.azure-dns.info
Hosting
IP Address 217.114.94.2
ASN AS30811 (EPISERVER_AS, SE)
Provider EPISERVER_AS, SE
Data source: whois (1.1s)

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 76 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
59 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.
9 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
77 ms
Total Time Total request time from DNS lookup through full response.
77 ms

Connection waterfall

DNS Lookup 59 ms TCP Connect 1 ms TLS Handshake 9 ms Server Processing 7 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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