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davidchipperfield.com

https://davidchipperfield.com· First analyzed 12 May 2026· Updated 12 May 2026
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davidchipperfield.com
Desktop screenshot of davidchipperfield.com
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Mobile

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Hosting Provider

Cloudflare
cloudflare.com

IP Address

104.21.30.20

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

sage.ns.cloudflare.com.connie.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
584 ms10%
Speed Index
759 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1 MB
17 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Cloudflare
CDN
Cloudflare

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

4 Technologies Detected

Frameworks

1
Angular

CSS Frameworks

1
Tailwind CSS

Analytics

1
Plausible Analytics

CDN

1
Cloudflare

SEO Analysis

B70/100
22
5
1
Meta Tags12/15
Content8/12
Headings5/8
Technical21/25
E-E-A-T0/7
Images3/7
Links4/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
D
davidchipperfield.comdavidchipperfield.com

Home • David Chipperfield Architects

David Chipperfield Architects is an international practice founded in 1985 with offices in London, Berlin, Milan, Shanghai and Santiago de Compostela.

Title Length36 chars

Recommended: 50-60 chars (~215px / 580px)

Description Length150 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (31/31) — critical for accessibility and SEO

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

21 URLs

21 sub-sitemaps

robots.txt

2 rules

Local SEO

Local Search Readiness

6/100
Poor
2 13 2

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

D42/100
Bot Access
20/25
Machine Read.
13/25
Schema Data
0/25
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
nav
Text ratio:2%
Words:312
Token eff.:Optimal
Depth:1/5

Structured Data

Microdata

Citation Readiness

Opening Summary221w
Descriptive Headingsavg 2w
Canonical URL
Open Graph3/3
Twitter Card2/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (10)
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
84/100
13
Passed
1
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
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
13/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
4/15
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.
75/100
B
108 mg
CO₂e / view
1.0 MB
Page Weight
70%
Cleaner Than
New Visitor
123 mg
vs
Returning (cached)
62 mg
Annual (10K/mo)
12.9 kg
Emission Segments
Data Center
5 mg
Network
32 mg
Device
71 mg
Resource Breakdown
JavaScript
208.2 KB
Images
768.3 KB
CSS
48.5 KB
Fonts
28.1 KB
HTML
11.9 KB
Green Hosting Verified
Cloudflare
GWF Verified
3 recommendations
  • •Carbon footprint recommendation preview...
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F

Security Score

36%Critical
Interactive

HTTPS

WAF

47d

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

30.03.2026

Valid Until

28.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

davidchipperfield.com*.davidchipperfield.com

SHA-256 Fingerprint

F6:D3:C7:15:FE:73:4F:52:49:94:C9:BE:58:22:EF:E6:76:1D:94:14...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

age
371675
alt-svc
h3=":443"; ma=86400
cache-control
🟡 0s(public, s-maxage=31536000, max-age=0, max-age=0)
cf-cache-status
HIT
cf-ray🇫🇷 Paris
9fa59005b99bbb72-CDG
content-encoding
zstd
Good Warning Issue

Email Infrastructure

Mimecast

Score

75

SPF
DKIM
DMARC

MX Records (2)

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

Domain Information

davidchipperfield.com

Domain Age
24y 11m

Created

12.06.2001

Expires

12.06.2027

Last Updated

13.06.2025

Registrar

GoDaddy.com, LLC

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

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
79/100
Mobile Friendly
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

DCA Monument Grotesk + DCA

WCAG AA
80/100
Readability
/30
22/30

20px · LH 1.37

Hierarchy
/20
16/20

2.4x ratio

WCAG
/25
22/25

4.52:1 min contrast

Performance
/25
20/25

2 fonts · 2 req

Heading Font

DCA Monument Grotesk

Sans48px

Body Font

DCA

Sans20px

Contrast Ratio

4.52:1

WCAG AA (≥4.5:1)

Reading Comfort

Dual Sans-Serif

left aligned
48px
h1
20px
h3
20px
p

✅ Excellent readability: 20px body text is ideal for all devices.

⚠️ Tight line spacing (1.37). Increase to 1.4–1.6 for better readability.

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

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 4.5:1).

⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

✅ Strong hierarchy: Headlines are 2.4x larger than body text.

Buy on MyFontsFlesch 0

Color Palette

10 unique colors
6.35:1 AA Light
#ffffff
Primary· 49.300000000000004%
#5f5f64
Other· 3.8%
#232830
Secondary· 5.4%
#475057
Secondary· 3.5%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
PlausibleSMB
Google AnalyticsFree

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

5 Resources

4
Scripts
1
Styles
0
Async
1
Defer

Top Script Sources

davidchipperfield.com(3)plausible.io(1)

Website Identity

davidchipperfield.com

24 years old
Location detected: 🇨🇦 Canadavia ip
GoDaddy.com, LLC📧 Mimecasten-GB

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Last analyzed: 12 May 2026 at 01:13

Historical Analysis & Change Tracking