gchq.gov.uk
Welcome to GCHQ | GCHQ
Last scanned Aug 24, 2026, 1:22 PM · 1 view
Overall score
Excellent
Summary
We are the UK's intelligence, security and cyber agency. This website uses Drupal behind Cloudflare CDN. SEO is excellent (90/100) and accessibility is good (85/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: robots.txt not found.
We are the UK's intelligence, security and cyber agency. Our mission is to help keep the country safe.
Top issues to fix
5 issues found · 1 high priority
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
More than 20% of images are missing alt text
AccessibilityAdd alt attributes to the remaining images (use alt="" for purely decorative ones).
1 broken link on the page
SEOFix or remove broken links — they waste crawl budget and erode user trust.
SEO
2 issue(s) found
Performance
546 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Organization
Company details published in this site's own structured data.
We are the UK's intelligence, security and cyber agency. Our mission is to help keep the country safe.
Meta tags
- Title
- Welcome to GCHQ | GCHQ
- Description
- We are the UK's intelligence, security and cyber agency. Our mission is to help keep the country safe.
- Canonical
- https://www.gchq.gov.uk/
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1.0
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- Cloudflare
- 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
- Google Trust Services
- Subject
- www.gchq.gov.uk
- Valid from
- Aug 20, 2026
- Valid to
- Nov 18, 2026
- Days until expiry
- 84
- SAN domains
- www.gchq.gov.uk
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyEnabled
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 13 · H3 8
Links
49 internal · 22 external · 1 broken
Images
29 total · 9 missing alt
Scripts / Styles
8 scripts · 3 stylesheets
JS / CSS size
1.3 KB · 350 B
Page size
109 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- More than 20% of images are missing alt text
Scan details
- Requested URL
- https://gchq.gov.uk
- Final URL
- https://www.gchq.gov.uk/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 544 ms
- HTML size
- 109 KB
- Redirect chain
- https://gchq.gov.uk → https://www.gchq.gov.uk/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does gchq.gov.uk use?
- gchq.gov.uk is built with Vue.js, Drupal, Cloudflare Analytics.
- Is gchq.gov.uk secure (HTTPS)?
- Yes. gchq.gov.uk uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Nov 18, 2026.
- Who hosts gchq.gov.uk?
- Hosting provider information for gchq.gov.uk is not available yet.
- What is gchq.gov.uk's SEO score?
- gchq.gov.uk scored 90/100 for SEO in the latest analysis (excellent).
- What is gchq.gov.uk's overall website score?
- gchq.gov.uk has an overall SiteGraph score of 92/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card