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edwardtufte.com

https://edwardtufte.com· First analyzed 26 Apr 2026· Updated 26 Apr 2026
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edwardtufte.com
Desktop screenshot of edwardtufte.com
Mobile screenshot of edwardtufte.com
Mobile

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Hosting Provider

WP Engine
wpengine.com

IP Address

141.193.213.11

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Austin, United States

ASN

AS209242

Organization

WPEngine, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns26.worldnic.com.ns25.worldnic.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
284 ms10%
Speed Index
369 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
19 KB
61 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv6.9.4
cms
EdwardTuftev1.0Custom
by (W Thode)

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

20 Technologies Detected

Plugins

10
WooCommerce
Cookie Notice
Woocommerce Payments
Woocommerce Pixel Manager
Woocommerce Paypal Payments
Elex Woo Dhl Express Shipping
Wpforms User Journey
Google Listings And Ads
Yoast SEO
WP Rocket

Analytics

3
Google Analytics
Google Analytics 4
Facebook Pixel

Frameworks

1
Alpine.js

Libraries

1
jQueryv3.7.1

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Fonts

1
Google Fonts

Tag Managers

1
Google Tag Manager

CDN

1
Cloudflare

SEO Analysis

B78/100
22
7
1
Meta Tags14/15
Content11/12
Headings3/8
Technical22/25
E-E-A-T2/7
Images4/7
Links2/5
URL5/5
Social4/5
Freshness4/4
Mobile4/4
Indexability3/3
E
edwardtufte.comedwardtufte.com

The Work of Edward Tufte & Graphics Press

Explore the books, courses and original artworks created by renowned data visualization expert Edward Tufte and Graphics Press.

Title Length41 chars

Recommended: 50-60 chars (~260px / 580px)

Description Length127 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

Type: index

4 URLs

4 sub-sitemaps

robots.txt

15 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

17/100
Poor
5 12

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

D50/100
Bot Access
20/25
Machine Read.
8/25
Schema Data
8/25
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
Text ratio:13%
Words:1,493
Token eff.:Optimal
Sections/1K:1.3

Structured Data

5 JSON-LD
Organization×1.1WebSiteBreadcrumbListSearchAction
sameAs entity links

Citation Readiness

Opening Summary66w
Descriptive Headingsavg 10w
Canonical URL
Open Graph3/3
Twitter Card1/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (9)
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.
C
67/100
9
Passed
7
Critical
1
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
4/20
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
9/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
4 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.
79/100
A+
2 mg
CO₂e / view
19.0 KB
Page Weight
95%
Cleaner Than
New Visitor
2 mg
vs
Returning (cached)
1 mg
Annual (10K/mo)
228 g
Emission Segments
Data Center
<0.001 g
Network
<0.001 g
Device
1 mg
Resource Breakdown
CSS
360 B
HTML
18.7 KB
Green Hosting Verified
WP Engine
Provider Match
2 recommendations
  • •Carbon footprint recommendation preview...
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F

Security Score

31%Critical
Interactive

HTTPS

WAF

74d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

10.04.2026

Valid Until

09.07.2026

Subject Alternative Names (1)

www.edwardtufte.com

SHA-256 Fingerprint

8B:97:BE:0F:FB:8C:2C:4D:7C:3F:E1:07:0B:01:7F:9B:4D:53:59:A4...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc
h3=":443"; ma=86400
cache-control
🟡 600s(max-age=600, must-revalidate)
cf-cache-status
DYNAMIC
cf-ray🇮🇹 Milan
9f25fcf98b45edcf-MXP
content-encoding
⚡ Brotli(br)
content-type
text/html; charset=UTF-8
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

0

SPF
DKIM
DMARC

Domain Information

edwardtufte.com

Domain Age
26y 9m

Created

04.08.1999

Expires

04.08.2029

Last Updated

05.06.2024

Registrar

Network Solutions, LLC

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Notice (WP)

Cookie Consent Banner
Cookie Notice (WP)
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Cookie Notice (WP)
Privacy policy page linked
Data Protection Officer 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.
B
71/100
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

Lato

WCAG AA
70/100
Readability
/30
24/30

22px · LH 1.64

Hierarchy
/20
6/20
WCAG
/25
20/25

6.5:1 min contrast

Performance
/25
20/25

1 font · 1 req

Heading Font

Lato

Sans

Body Font

Lato

Sans22px

Contrast Ratio

6.5:1

WCAG AA (≥4.5:1)

Reading Comfort

~34 CPL

Narrow lines
34px
h2
22px
p

✅ Excellent readability: 22px body text is ideal for all devices.

❌ Very complex text: Flesch score 29/100. Consider shorter sentences and simpler words.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 6.5:1).

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

✅ Modern fluid typography: clamp() with rem units ensures zoom accessibility (WCAG 1.4.4).

✅ Lean font stack: 1 font families keeps load times fast.

GGoogle FontsFluid Type (rem)Flesch 29

Color Palette

5 unique colors
9.68:1 AAA Dark
#3b3131
Secondary· 9.3%
#e2e2dd
Secondary· 6.6%
#fffff3
Primary· 70.19999999999999%
#c6b5ad
Secondary· 7%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

2
Google AnalyticsFree
Google Tag ManagerFree

User behavior and product analytics

Advertising

1
Facebook PixelMid-Market

Ad platforms and retargeting pixels

2

Categories

3

Total Tools

0

Enterprise

1

Mid-Market

Assessment: Well-developed marketing technology stack

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Scripts & Styles

29 Resources

20
Scripts
9
Styles
7
Async
4
Defer

Top Script Sources

edwardtufte.com(14)googletagmanager.com(2)connect.facebook.net(2)kit.fontawesome.com(1)nbcconnecticut.com(1)

Website Identity

Edward Tufte & Graphics Press

Edward Tufte & Graphics Press

Organization

Explore the books, courses and original artworks created by renowned data visualization expert Edward Tufte and Graphics Press.

tufte@graphicspress.com
www.edwardtufte.com/
26 years old
Location detected: 🇺🇸 United Statesvia ip
Network Solutions, LLC

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Last analyzed: 26 Apr 2026 at 13:39

Historical Analysis & Change Tracking