What technology does admiralty.co.uk use?

admiralty.co.uk is built with PHP, Apache.

Is admiralty.co.uk secure (HTTPS)?

Yes. admiralty.co.uk uses TLS 1.3 with a certificate issued by Amazon, valid until Jan 24, 2027.

Who hosts admiralty.co.uk?

Hosting provider information for admiralty.co.uk is not available yet.

What is admiralty.co.uk's SEO score?

admiralty.co.uk scored 80/100 for SEO in the latest analysis (great).

What is admiralty.co.uk's overall website score?

admiralty.co.uk has an overall SiteGraph score of 89/100, combining SEO, performance, security, and accessibility.

admiralty.co.uk

UK Hydrographic Office

Last scanned Jul 26, 2026, 4:17 PM · 2 views

Overall score

Great

Summary

For over 225 years, the UK Hydrographic Office (UKHO) has delivered accurate and timely navigational information that supports decision making for safe, compliant and efficient maritime navigation. This website uses PHP behind CloudFront CDN. SEO is good (80/100) and accessibility is excellent (100/100). Security scores good (80/100) and performance excellent (100/100). Top issue: Meta description longer than 160 characters.

For over 225 years, the UK Hydrographic Office (UKHO) has delivered accurate and timely navigational information that supports decision making for safe, compliant and efficient maritime navigation.

Top issues to fix

7 issues found · 2 high priority

Missing Strict-Transport-Security header
Security
Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
Security
Add a CSP to control which sources can run scripts — the strongest single defense against XSS.
Meta description longer than 160 characters
SEO
Trim the meta description to under 160 characters to avoid truncation in search results.
Multiple H1 headings found
SEO
Keep a single H1 per page and demote the others to H2/H3.
robots.txt not found
SEO
Publish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEO
Publish an XML sitemap and reference it from robots.txt to speed up page discovery.

+1 more issue — details in the sections below.

SEO

4 issue(s) found

100

Performance

365 ms

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Organization

Company details published in this site's own structured data.

For over 225 years, the UK Hydrographic Office (UKHO) has delivered accurate and timely navigational information that supports decision making for safe, compliant and efficient maritime navigation.

LinkedIn YouTube Facebook

Contact

Email, phone, and address published on this site's own pages.

Email: customerservices@ukho.gov.uk
Phone: +44 (0)1823 484444

Meta tags

Title: UK Hydrographic Office
Description: For over 225 years, the UK Hydrographic Office (UKHO) has delivered accurate and timely navigational information that supports decision making for safe, compliant and efficient maritime navigation.
Canonical: https://www.admiralty.co.uk/
Language: en
Charset: utf-8
Viewport: width=device-width, initial-scale=1.0
Robots meta
Manifest: https://www.admiralty.co.uk/site.webmanifest

Technologies

Detected frameworks, languages, and tools.

PHP Apache

Hosting & CDN

Hosting provider: —
CDN provider: CloudFront
IP address: —
ASN: —

DNS records

Type	Value
A	—
AAAA	—
MX	—
TXT	—
NS	—
CAA	—
CNAME	—
IPv6 support	No

TLS / SSL certificate

Version: TLS 1.3
Issuer: Amazon
Subject: www.admiralty.co.uk
Valid from: Jul 11, 2026
Valid to: Jan 24, 2027
Days until expiry: 179
SAN domains: www.admiralty.co.uk, admiralty.co.uk

Security headers

Strict-Transport-SecurityMissing
Content-Security-PolicyMissing
X-Frame-OptionsEnabled
X-Content-Type-OptionsEnabled
Referrer-PolicyMissing
Permissions-PolicyMissing

Compression: none · 0 cookie(s) observed

Content & assets

Headings

H1 2 · H2 20 · H3 0

Links

77 internal · 8 external · 20 broken

Images

12 total · 0 missing alt

Scripts / Styles

9 scripts · 2 stylesheets

JS / CSS size

31.9 KB · 0 B

Page size

123 KB

Robots.txt & Sitemap

robots.txt: Not found
Disallow rules: 0
sitemap.xml: Not found
URLs in sitemap: 0

SEO issues

Meta description longer than 160 characters
Multiple H1 headings found
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://admiralty.co.uk
Final URL: https://www.admiralty.co.uk/
HTTP status: 200
HTTP version: HTTP/2
Response time: 363 ms
HTML size: 123 KB
Redirect chain: https://admiralty.co.uk → https://www.admiralty.co.uk/

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