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cdtltd.co.uk

https://cdtltd.co.uk· First analyzed 04 Jun 2026· Updated 04 Jun 2026
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cdtltd.co.uk
Desktop screenshot of cdtltd.co.uk
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Mobile

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Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

18.133.47.181

Site Location

🇬🇧 United Kingdomvia tld

Server Location

🇬🇧 London, United Kingdom

ASN

AS16509

Organization

AWS EC2 (eu-west-2)

Server

Apache

Nameservers

ns5.ontinuity.co.uk.ns2.ontinuity.co.uk.ns1.ontinuity.co.uk.

Performance

88

Core Web Vitals

Weight

First Contentful Paint
1.6 s10%
Speed Index
2.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
3.8 MB
38 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Tailwind CSS
CMS
WordPress
Infrastructure
Hosting
Amazon Web Services (AWS)

Technology Stack

13 Technologies Detected

Plugins

3
Ninja Forms Style
Ninja Forms
Ninja Forms Conditionals

Libraries

2
jQueryv3.7.1
Underscore.js

Analytics

2
Google Analytics
Google Analytics 4

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Fonts

1
Google Fonts

Tag Managers

1
Google Tag Manager

Web Servers

1
Apache

Security

1
reCAPTCHA

SEO Analysis

A86/100
28
3
1
Meta Tags11/15
Content8/12
Headings8/8
Technical24/25
E-E-A-T7/7
Images3/7
Links4/5
URL5/5
Social5/5
Freshness4/4
Mobile4/4
Indexability3/3
C
cdtltd.co.ukcdtltd.co.uk

Homepage | Cambridge Display Technology

CDT is a leading research institution that provides the expertise to launch advanced materials into global markets.

Title Length39 chars

Recommended: 50-60 chars (~236px / 580px)

Description Length115 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (10/10) — critical for accessibility and SEO

4 issues found

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Crawlability

Sitemap

Type: index

2 URLs

2 sub-sitemaps

robots.txt

4 rules

Sitemap reference found

Local SEO

Local Search Readiness

14/100
Poor
4 13

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

C63/100
Bot Access
20/25
Machine Read.
13/25
Schema Data
13/25
Citation
17/25

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
header/footer
Text ratio:3%
Words:375
Token eff.:Optimal
Sections/1K:13.3
Depth:1/5

Structured Data

5 JSON-LD
Article×1.2Person×1.3Organization×1.1WebSiteSearchAction
sameAs entity links

Citation Readiness

Opening Summary35w
Descriptive Headingsavg 4w
Canonical URL
Open Graph2/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (6)
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.
A+
90/100
15
Passed
2
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
18/20
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
11/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
1 recommendation
  • •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.
30/100
F
389 mg
CO₂e / view
3.8 MB
Page Weight
15%
Cleaner Than
New Visitor
444 mg
vs
Returning (cached)
222 mg
Annual (10K/mo)
46.6 kg
Emission Segments
Data Center
19 mg
Network
114 mg
Device
255 mg
Resource Breakdown
JavaScript
470.8 KB
Images
2.2 MB
CSS
1.0 MB
Fonts
917 B
HTML
85.1 KB
Other
40.6 KB
Green Hosting Verified
Amazon Web Services (AWS)
Provider Match
7 recommendations
  • •Carbon footprint recommendation preview...
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F

Security Score

21%Critical
Interactive

HTTPS

No WAF

139d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

19.09.2025

Valid Until

21.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.cdtltd.co.ukcdtltd.co.uk

SHA-256 Fingerprint

B7:BF:60:7C:20:C7:3E:E7:96:5D:20:8F:0B:B0:C6:C2:79:C2:99:AF...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

connection
Keep-Alive
content-type
text/html; charset=UTF-8
date
Thu, 04 Jun 2026 06:11:18 GMT
keep-alive
timeout=5, max=100
link
<https://www.cdtltd.co.uk/wp-json/>; rel="https://api.w.org/...
server
Apache
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

98

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

cdtltd-co-uk.mail.protection.outlook.com

Domain Information

cdtltd.co.uk

DNSSEC
Not Enabled

Privacy & Compliance

CookieYes

Cookie Consent Banner
CookieYes
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: CookieYes
Privacy policy page linked

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
76/100
Mobile Friendly1 breakpoint
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
1 recommendation
  • •Mobile compatibility recommendation preview...
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Typography & Readability

Raleway

WCAG Partial
72/100
Readability
/30
21/30

16px · LH 1.50

Hierarchy
/20
17/20

2.5x ratio · ✓ H1→H6

WCAG
/25
14/25

1:1 min contrast

Performance
/25
20/25

1 font · 1 req

Heading Font

Raleway

Sans40px

Body Font

Raleway

Sans16px

Contrast Ratio

1:1

17 issues

Reading Comfort

~39 CPL

Narrow lines
40px
h1
29px
h2
29px
h3
16px
p

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

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

⚠️ Hard to read: Flesch score 34/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 17 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 2.5x larger than body text.

GGoogle FontsFlesch 35

Color Palette

9 unique colors
4.82:1 AA Light
#ffffff
Background· 47.599999999999994%
#6c7280
Border· 7%
#3c4d63
Primary· 18.900000000000002%
#2a3039
Secondary· 4.1%
#664847
Secondary· 1.8%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

1
CookieYesSMB

Cookie consent and privacy compliance tools

2

Categories

3

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Well-developed marketing technology stack

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Scripts & Styles

18 Resources

15
Scripts
3
Styles
3
Async
0
Defer

Top Script Sources

cdtltd.co.uk(11)googletagmanager.com(2)cdn-cookieyes.com(2)

Website Identity

Cambridge Display Technology

Cambridge Display Technology

Organization

CDT is a leading research institution that provides the expertise to launch advanced materials into global markets.

www.cdtltd.co.uk
Location detected: 🇬🇧 United Kingdomvia tld
📧 Microsoft 365en-GB

Social Profiles

LinkedIn

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Last analyzed: 04 Jun 2026 at 06:11

Historical Analysis & Change Tracking