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tuc.org.uk

https://tuc.org.uk· First analyzed 25 Apr 2026· Updated 25 Apr 2026
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tuc.org.uk
Desktop screenshot of tuc.org.uk
Mobile screenshot of tuc.org.uk
Mobile

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Hosting Provider

ONYX

IP Address

194.176.69.78

Site Location

🇬🇧 United Kingdomvia tld

Server Location

🇬🇧 Maidenhead, United Kingdom

ASN

AS12703

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

matt.ns.cloudflare.com.mary.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
261 ms10%
Speed Index
339 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
300 KB
31 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Drupal

Technology Stack

6 Technologies Detected

Analytics

2
Google Analytics
Facebook Pixel

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

CDN

1
Cloudflare

Customer Support

1
Zendesk

SEO Analysis

C60/100
18
7
1
Meta Tags7/15
Content10/12
Headings3/8
Technical17/25
E-E-A-T0/7
Images6/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
T
tuc.org.uktuc.org.uk

TUC: Trades Union Congress

The TUC is the voice of Britain at work. We support trade unions to grow and thrive, and we stand up for everyone who works for a living. Every day, we campa...

Description truncated.
Title Length26 chars

Recommended: 50-60 chars (~156px / 580px)

Description Length229 chars

Recommended: 120-160 chars

Issues (1)

  • • Missing H1 tag — every page should have exactly one H1

8 issues found

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Crawlability

Sitemap
robots.txt

46 rules

Local SEO

Local Search Readiness

22/100
Needs Work
6 9 2

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AI & LLM Readiness

F36/100
Bot Access
20/25
Machine Read.
8/25
Schema Data
0/25
Citation
8/25

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
navheader/footer
Text ratio:4%
Words:719
Token eff.:Optimal
Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary862w
Descriptive Headingsavg 2w
Canonical URL
Open Graph0/3
Twitter Card0/3
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
77/100
12
Passed
3
Critical
2
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
13/20
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
13/15
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.
3 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.
69/100
A+
37 mg
CO₂e / view
300.4 KB
Page Weight
90%
Cleaner Than
New Visitor
43 mg
vs
Returning (cached)
21 mg
Annual (10K/mo)
4.5 kg
Emission Segments
Data Center
8 mg
Network
9 mg
Device
20 mg
Resource Breakdown
Images
276.0 KB
HTML
24.5 KB
Green Hosting Not Verified
ONYX
4 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
D

Security Score

46%Poor
Interactive

HTTPS

WAF

81d

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

16.04.2026

Valid Until

15.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

tuc.org.uk*.tuc.org.uk

SHA-256 Fingerprint

B1:A9:16:E3:79:23:7E:15:BF:6F:76:0D:7E:B5:7C:50:0F:0B:CA:15...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc
h3=":443"; ma=86400
cache-control
🔴 No Cache(must-revalidate, no-cache, private)
cf-cache-status
DYNAMIC
cf-ray🇮🇹 Milan
9f1e051be8e3edd6-MXP
content-encoding
⚡ Brotli(br)
content-language
en
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

93

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

tuc-org-uk.mail.protection.outlook.com

Domain Information

tuc.org.uk

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
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.
C
67/100
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, initial-scale=1.0
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Hepta Slab + Red Hat Text

WCAG Partial
64/100
Readability
/30
22/30

16px · LH 1.40

Hierarchy
/20
8/20
WCAG
/25
16/25

4.32:1 min contrast

Performance
/25
18/25

2 fonts · 3 req

Heading Font

Hepta Slab

Sans

Body Font

Red Hat Text

Sans16px

Contrast Ratio

4.32:1

13 issues

Reading Comfort

Dual Sans-Serif

left aligned
22px
h2
16px
p

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

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

⚠️ Partial contrast: 13 elements below WCAG AA threshold (min 4.3:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

✅ Lean font stack: 2 font families keeps load times fast.

✅ Smart font loading: font-display: swap prevents invisible text during load (FOIT).

Buy on MyFonts

Color Palette

13 unique colors
15.59:1 AAA Dark
#242329
Secondary· 13.1%
#ffffff
Text· 10.8%
#36b1b6
Accent· 15.4%
#c2a130
Accent· 10.1%
#080710
Primary· 7.2%
#6ec3d1
Accent· 6.5%
#d05935
Accent· 6.3%
#ccd8c9
Secondary· 4.8%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
Google AnalyticsFree
Google Tag ManagerFree

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

11 Resources

9
Scripts
2
Styles
2
Async
1
Defer

Top Script Sources

local(4)static.addtoany.com(3)google-analytics.com(1)googletagmanager.com(1)

Website Identity

tuc.org.uk

info@tuc.org.uk
02076364030
Location detected: 🇬🇧 United Kingdomvia tld
📧 Microsoft 365en

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Last analyzed: 25 Apr 2026 at 14:26

Historical Analysis & Change Tracking