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chapter.org

https://chapter.org· First analyzed 24 May 2026· Updated 24 May 2026
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chapter.org
Desktop screenshot of chapter.org
Mobile screenshot of chapter.org
Mobile

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Hosting Provider

Cloudflare
cloudflare.com

IP Address

104.21.34.5

Site Location

🇬🇧 Cardiff, United Kingdomvia schema

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

garret.ns.cloudflare.com.isla.ns.cloudflare.com.

Performance

97

Core Web Vitals

Weight

First Contentful Paint
1.0 s10%
Speed Index
1.3 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
336 KB
30 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Tailwind CSS
CMS
Craft CMS
Infrastructure
Hosting
Cloudflare
CDN
Cloudflare

Technology Stack

8 Technologies Detected

Fonts

2
Adobe Fonts (Typekit)Adobe Fonts

Analytics

2
Google Analytics
Google Analytics 4

Libraries

1
HTMX

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

CDN

1
Cloudflare

SEO Analysis

B78/100
25
4
1
Meta Tags9/15
Content12/12
Headings8/8
Technical23/25
E-E-A-T2/7
Images3/7
Links2/5
URL5/5
Social5/5
Freshness2/4
Mobile4/4
Indexability3/3
C
chapter.orgchapter.org

Chapter | Caerdydd | Cardiff

Chapter is a centre for the production and presentation of world-class, inventive and compelling work that is open and accessible to all.

Title Length28 chars

Recommended: 50-60 chars (~167px / 580px)

Description Length137 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (10/12) — critical for accessibility and SEO

5 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

12 URLs

12 sub-sitemaps

robots.txt

Local SEO

Local Search Readiness

71/100
Good
17 6

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AI & LLM Readiness

D55/100
Bot Access
20/25
Machine Read.
11/25
Schema Data
10/25
Citation
14/25

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
nav
Text ratio:3%
Words:634
Token eff.:Optimal
Sections/1K:3.2
Depth:1/5

Structured Data

4 JSON-LD
Person×1.3(min)Organization×1.1microdataWebSiteLocalBusiness×1.1BreadcrumbList
sameAs entity links

Citation Readiness

Opening Summary252w
Descriptive Headingsavg 2.2w
Canonical URL
Open Graph3/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (8)
AI readiness recommendation preview...
Upgrade to view recommendations

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.
B
77/100
11
Passed
2
Critical
1
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
17/20
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
9/15
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.
78/100
A+
34 mg
CO₂e / view
336.0 KB
Page Weight
90%
Cleaner Than
New Visitor
39 mg
vs
Returning (cached)
19 mg
Annual (10K/mo)
4.1 kg
Emission Segments
Data Center
2 mg
Network
10 mg
Device
22 mg
Resource Breakdown
JavaScript
178.0 KB
Images
100.8 KB
CSS
17.1 KB
Fonts
23.0 KB
HTML
17.1 KB
Green Hosting Verified
Cloudflare
GWF Verified
4 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
D

Security Score

51%Poor
Interactive

HTTPS

WAF

86d

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

21.05.2026

Valid Until

19.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

chapter.org*.chapter.org

SHA-256 Fingerprint

A7:0F:4C:A5:93:30:77:3F:FE:1C:6C:19:9B:42:0B:1A:D1:07:74:99...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

alt-svc
h3=":443"; ma=86400
cf-cache-status
DYNAMIC
cf-ray🇫🇷 Paris
a00a277889ea9ae1-CDG
content-encoding
zstd
content-type
text/html; charset=UTF-8
date
Sun, 24 May 2026 06:13:25 GMT
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

90

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

chapter-org.mail.protection.outlook.com

Domain Information

chapter.org

Domain Age
29y 1m

Created

07.04.1997

Expires

08.04.2027

Last Updated

08.06.2024

Registrar

Mesh Digital Limited

DNSSEC
Not Enabled

Privacy & Compliance

Civic Cookie Control

Cookie Consent Banner
Civic Cookie Control
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Civic Cookie Control

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
81/100
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

Typography & Readability

supply + -apple-system

WCAG Partial
71/100
Readability
/30
22/30

18px · LH 1.50

Hierarchy
/20
17/20

4.21x ratio · ✓ H1→H6

WCAG
/25
17/25

2.16:1 min contrast

Performance
/25
15/25

System fonts

Heading Font

supply

Sans76px

Body Font

-apple-system

Sans18px

Contrast Ratio

2.16:1

4 issues

Reading Comfort

~34 CPL

Narrow lines
76px
h1
57px
h2
43px
h3
18px
p

✅ Excellent readability: 18px body text is ideal for all devices.

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

⚠️ Hard to read: Flesch score 41/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 4 elements below WCAG AA threshold (min 2.2:1).

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

✅ Strong hierarchy: Headlines are 4.2x larger than body text.

AAdobe FontsBuy on MyFontsFluid Type (rem)Flesch 41

Color Palette

10 unique colors
Dark
#232023
Other· 12.6%
#0f1219
Primary· 34.70000000000001%
#2c3d5e
Secondary· 10.5%
#676f8b
Secondary· 7.9%
#bc7574
Secondary· 7.7%
#f0cbb8
Accent· 7.4%
#8e4b4b
Secondary· 5.2%
#51222c
Secondary· 4.4%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

3
Google Tag ManagerFree
Google AnalyticsFree
ContentsquareEnterprise

User behavior and product analytics

1

Categories

3

Total Tools

1

Enterprise

0

Mid-Market

Assessment: Well-developed marketing technology stack

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Scripts & Styles

8 Resources

6
Scripts
2
Styles
2
Async
0
Defer

Top Script Sources

googletagmanager.com(2)chapter.org(2)cc.cdn.civiccomputing.com(1)t.contentsquare.net(1)

Website Identity

Chapter

Chapter

LocalBusiness

Set up in 1971, we're an international centre for contemporary arts and culture | Sefydlwyd Chapter yn 1971, ac mae’n ganolfan rhwngwladol ar gyfer y celfyddydau cyfoes a diwylliant.

enquiry@chapter.cymru
+442920311050
www.chapter.org/
29 years old

Chapter Arts Centre, Market Road, Cardiff

CF5 1QE, Cardiff, Wales

United Kingdom

Location detected: 🇬🇧 United Kingdom, Cardiffvia schema
Mesh Digital Limited📧 Microsoft 365en-GBEst. 1971

Sponsored

Last analyzed: 24 May 2026 at 06:13

Historical Analysis & Change Tracking