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gchq.gov.uk

https://gchq.gov.uk· First analyzed 30 Apr 2026· Updated 30 Apr 2026
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gchq.gov.uk
Desktop screenshot of gchq.gov.uk
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Mobile

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Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

18.165.140.56

Site Location

🇬🇧 United Kingdomvia tld

Server Location

🇫🇮 Helsinki, Finland

ASN

AS16509

Organization

AWS CloudFront (GLOBAL)

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns-706.awsdns-24.net.ns-1184.awsdns-20.org.ns-1819.awsdns-35.co.uk.ns-6.awsdns-00.com.

Performance

92

Core Web Vitals

Weight

First Contentful Paint
1.4 s10%
Speed Index
1.8 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
450 KB
56 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Drupal

Technology Stack

6 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Other

1
GSAP

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

CDN

1
Cloudflare

SEO Analysis

C66/100
20
6
1
Meta Tags8/15
Content3/12
Headings8/8
Technical22/25
E-E-A-T2/7
Images4/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile3/4
Indexability3/3
G
gchq.gov.ukgchq.gov.uk

Welcome to GCHQ | GCHQ

We are the UK's intelligence, security and cyber agency. Our mission is to help keep the country safe.

Title Length22 chars

Recommended: 50-60 chars (~148px / 580px)

Description Length102 chars

Recommended: 120-160 chars

Issues (1)

  • • Very thin content (5 words). Search engines need substantial content for ranking.

7 issues found

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Crawlability

Sitemap

Type: standard

460 URLs

robots.txt

21 rules

Local SEO

Local Search Readiness

15/100
Poor
5 14

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

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AI & LLM Readiness

F31/100
Bot Access
15/25
Machine Read.
7/25
Schema Data
2/25
Citation
7/25

AI Bot Access

6/14 accessible
AI Search
OAI-SearchBot
PerplexityBot
Claude-SearchBot
Gemini-Deep-Research
DuckAssistBot
Training
GPTBot
ClaudeBot
Google-Extended
Meta-ExternalAgent
Bytespiderinfo
Amazonbot
Applebot-Extended
CCBotinfo
Fetch
ChatGPT-User

Machine Readability

llms.txt
llms-full.txt
Semantic HTML
Heading Hierarchy
Text ratio:2%
Words:1,189
Token eff.:Optimal

Structured Data

1 JSON-LD
Organization×1.1

Citation Readiness

Opening Summary
Descriptive Headings
Canonical URL
Open Graph2/3
Twitter Card2/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (12)
AI readiness recommendation preview...
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Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.
B
73/100
11
Passed
4
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
6/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
15/15
Verifies form fields have labels, error messages are clear, and inputs are properly associated.
Color & Contrast
15/15
Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
Keyboard & Focus
11/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
6/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
2 recommendations
  • •Accessibility recommendation preview...
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Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.
75/100
A
45 mg
CO₂e / view
449.6 KB
Page Weight
90%
Cleaner Than
New Visitor
52 mg
vs
Returning (cached)
26 mg
Annual (10K/mo)
5.4 kg
Emission Segments
Data Center
2 mg
Network
13 mg
Device
30 mg
Resource Breakdown
JavaScript
82.2 KB
Images
298.7 KB
CSS
30.7 KB
Fonts
16.0 KB
HTML
21.6 KB
Other
428 B
Green Hosting Verified
Amazon Web Services (AWS)
Provider Match
3 recommendations
  • •Carbon footprint recommendation preview...
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C

Security Score

66%Fair
Interactive

HTTPS

WAF

83d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

23.04.2026

Valid Until

22.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.gchq.gov.uk

SHA-256 Fingerprint

4D:1B:46:68:5F:88:35:60:95:94:4E:21:2C:09:4C:5B:A5:22:4C:C8...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

age
407
alt-svc
h3=":443"; ma=86400
cache-control
🟡 600s(max-age=600, public)
cf-cache-status
HIT
cf-ray
9f45dad47eaf77a8-SJC
content-encoding
📦 Gzip(gzip)
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

100

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

gchq-gov-uk.mail.protection.outlook.com

Domain Information

gchq.gov.uk

Domain Age
25y 12m

Created

10.05.2000

Expires

10.05.2026

Registrar

British Telecommunications Public Limited Company

DNSSEC
Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner
Cookiebot
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Cookiebot
Privacy policy page linked
Data Protection Officer mentioned
Legitimate interest basis mentioned

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.
B
74/100
Mobile Friendly25 breakpoints
Viewport Meta
The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.
Responsive Design
Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.
Touch Icons
Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.
Readable Font Size
Base font size should be at least 16px on mobile to ensure text is readable without zooming.
Relative Units
Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.
No H-Scroll Risk
No elements wider than the viewport that would cause horizontal scrolling on mobile devices.
Tap Targets OK
Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.
No Fixed Widths
No elements with fixed pixel widths that could overflow on smaller screens and break the layout.
Viewport
width=device-width, initial-scale=1.0
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Poppins

WCAG Partial
75/100
Readability
/30
20/30

16px · LH 1.40

Hierarchy
/20
20/20

2.89x ratio · ✓ H1→H6

WCAG
/25
17/25

1:1 min contrast

Performance
/25
18/25

1 font · 4 req

Heading Font

Poppins

Sans46px

Body Font

Poppins

Sans16px

Contrast Ratio

1:1

3 issues

Reading Comfort

~39 CPL

Narrow lines
46px
h1
29px
h2
20px
h3
16px
h4
16px
p

✅ Excellent readability: 16px body text is ideal for all devices.

✅ Optimal line spacing: 1.40 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 3 elements below WCAG AA threshold (min 1.0:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

✅ Strong hierarchy: Headlines are 2.9x larger than body text.

Buy on MyFontsFlesch 0

Color Palette

7 unique colors
17.59:1 AAA Light
#ffffff
Background· 40.2%
#191918
Text· 6.1%
#050b1e
Primary· 32.7%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

1
CookiebotMid-Market

Cookie consent and privacy compliance tools

2

Categories

3

Total Tools

0

Enterprise

1

Mid-Market

Assessment: Well-developed marketing technology stack

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Scripts & Styles

8 Resources

6
Scripts
2
Styles
2
Async
1
Defer

Top Script Sources

consent.cookiebot.com(2)local(2)googletagmanager.com(1)static.cloudflareinsights.com(1)

Website Identity

GCHQ

Organization
www.gchq.gov.uk/
25 years old
Location detected: 🇬🇧 United Kingdomvia tld
British Telecommunications Public Limited Company📧 Microsoft 365en

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Last analyzed: 30 Apr 2026 at 10:27

Historical Analysis & Change Tracking