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bletchleypark.org.uk

https://bletchleypark.org.uk· First analyzed 30 Apr 2026· Updated 30 Apr 2026
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bletchleypark.org.uk
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Mobile

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Hosting Provider

cloudflare.com

IP Address

188.114.97.3

Site Location

🇬🇧 United Kingdomvia phone

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

CloudFlare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

rick.ns.cloudflare.com.sue.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
520 ms10%
Speed Index
676 ms10%
Largest Contentful Paint
25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
526 KB
78 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv6.1.5
cms
Cygnus Bletchleyv2.10.4Custom
by Ole Fredrik Lie

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

10 Technologies Detected

Libraries

1

UI Components

1

CSS Frameworks

1

Icon Libraries

1

Tag Managers

1

Security

1

SEO Analysis

B74/100
21
5
1
Meta Tags9/15
Content10/12
Headings8/8
Technical22/25
E-E-A-T2/7
Images1/7
Links4/5
URL5/5
Social5/5
Freshness2/4
Mobile3/4
Indexability3/3
B
bletchleypark.org.ukbletchleypark.org.uk

Bletchley Park | Home

Bletchley Park, once the top-secret home of the World War Two Codebreakers, is now a vibrant heritage attraction in Milton Keynes, open daily to visitors.

Title Length21 chars

Recommended: 50-60 chars (~126px / 580px)

Description Length154 chars

Recommended: 120-160 chars

Issues (1)

  • Most images missing alt text (21/34) — critical for accessibility and SEO

Crawlability

Sitemap
robots.txt

4 rules

Sitemap reference found

Local SEO

Local Search Readiness

21/100
Needs Work
6 11

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AI & LLM Readiness

F37/100
Bot Access
20/25
Machine Read.
1/25
Schema Data
7/25
Citation
9/25

AI Bot Access

14/14 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:7%
Words:4,006
Token eff.:Poor Structure

Structured Data

3 JSON-LD
Organization×1.1WebSiteBreadcrumbListSearchAction

Citation Readiness

Opening Summary175w
Descriptive Headings
Canonical URL
Open Graph3/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (12)
AI readiness recommendation preview...

Sponsored

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.
C
60/100
11
Passed
5
Critical
2
Warnings
Images & Alt Text
3/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
15/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
10/15
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.
4 recommendations
  • Accessibility recommendation preview...

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.
52/100
A
53 mg
CO₂e / view
526.5 KB
Page Weight
80%
Cleaner Than
New Visitor
61 mg
vs
Returning (cached)
30 mg
Annual (10K/mo)
6.4 kg
Emission Segments
Data Center
3 mg
Network
16 mg
Device
35 mg
Resource Breakdown
CSS
495.9 KB
HTML
30.5 KB
Green Hosting Verified
Cloudflare
GWF Verified
5 recommendations
  • Carbon footprint recommendation preview...
D

Security Score

46%Poor
Interactive

HTTPS

WAF

53d

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

24.03.2026

Valid Until

22.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

bletchleypark.org.uk*.bletchleypark.org.uk

SHA-256 Fingerprint

95:D7:11:9B:62:17:8A:45:33:A0:CD:2F:3F:5B:B8:37:EC:2D:DC:E1...

Top Recommendations

Security recommendation preview

HTTP Headers

Developer Console

alt-svc
h3=":443"; ma=86400
cache-control
🔴 No Cache(no-store, no-cache, must-revalidate)
cf-cache-status
DYNAMIC
cf-ray
9f424fa80844b5f2-SJC
content-encoding
zstd
content-security-policy
upgrade-insecure-requests
Good Warning Issue

Email Infrastructure

Mimecast

Score

95

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

eu-smtp-inbound-2.mimecast.com
eu-smtp-inbound-1.mimecast.com

Domain Information

bletchleypark.org.uk

Domain Age
27y 4m

Created

16.12.1998

Expires

16.12.2026

Last Updated

17.10.2025

Registrar

ANS Group Ltd

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
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.
A
80/100
Mobile Friendly26 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...

Typography & Readability

Verlag

WCAG Partial
71/100
Readability
/30
23/30

16px · LH 1.20

Hierarchy
/20
16/20

2.06x ratio · ✓ H1→H6

WCAG
/25
14/25

1.39:1 min contrast

Performance
/25
18/25

1 font · 6 req

Heading Font

Verlag

Sans33px

Body Font

Verlag

Sans16px

Contrast Ratio

1.39:1

4 issues

Reading Comfort

~35 CPL

Narrow lines
33px
h1
28px
h2
90px
h3
36px
h4
16px
p
Perfect Fourth
Scale

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

⚠️ Tight line spacing (1.20). Increase to 1.4–1.6 for better readability.

⚠️ Hard to read: Flesch score 46/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 4 elements below WCAG AA threshold (min 1.4:1).

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

✅ Strong hierarchy: Headlines are 2.1x larger than body text.

Color Palette

8 unique colors
6.88:1 AA Dark
#161716
Text· 11.7%
#a79f95
Secondary· 7.1%
#273642
Primary· 31.599999999999998%
#f4f4ec
Background· 26.599999999999994%
#85786d
Secondary· 5.4%
#d3cfc7
Secondary· 4.4%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

2

User behavior and product analytics

Privacy & Cookies

1

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

21 Resources

18
Scripts
3
Styles
4
Async
1
Defer

Top Script Sources

bletchleypark.org.uk(9)googletagmanager.com(2)consent.cookiebot.com(2)gstatic.com(1)consentcdn.cookiebot.com(1)

Website Identity

Bletchley Park

Organization

Bletchley Park, once the top-secret home of the World War Two Codebreakers, is now a vibrant heritage attraction in Milton Keynes, open daily to visitors.

Location detected: 🇬🇧 United Kingdomvia phone
ANS Group Ltd📧 Mimecasten-GB

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Last analyzed: 30 Apr 2026 at 00:09

Historical Analysis & Change Tracking