winterthur.org

https://winterthur.org· First analyzed 02 May 2026· Updated 02 May 2026

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winterthur.org

Mobile

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Hosting Provider

The Constant Company, LLC

IP Address

64.176.204.8

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Piscataway, United States

ASN

AS20473

Organization

The Constant Company, LLC

Server

Nginx

Nameservers

ns3.lnhi.net.ns1.lnhi.net.ns2.lnhi.net.

Performance

Core Web Vitals

Weight

First Contentful Paint

930 ms10%

Speed Index

1.2 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

15 MB

232 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv5.9.13

cms

Winterthurv1Custom

by Trellist Marketing & Technology

View Theme

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

27 Technologies Detected

Plugins

Instagram Feed Events Calendar Pro Activecampaign Subscription Forms Accordion Blocks Grid Kit Premium Page List Simple Embed Code Hustle The Events Calendar

Yoast SEO

Libraries

jQueryv3.6.0

jQuery UI

Underscore.js Animate.css

Analytics

CSS Frameworks

UI Components

Icon Libraries

Fonts

Adobe Fonts (Typekit)

Tag Managers

Email Marketing

Advertising

Web Servers

SEO Analysis

A82/100

Meta Tags13/15

Content11/12

Headings8/8

Technical24/25

E-E-A-T0/7

Images2/7

Links5/5

URL5/5

Social4/5

Freshness4/4

Mobile3/4

Indexability3/3

winterthur.orgwinterthur.org

Home - Winterthur Museum, Garden & Library

Brandywine Valley Museum of American Decorative Arts and Gardens from home of Henry Francis du Pont (Wilmington, DE)

Title Length42 chars

Recommended: 50-60 chars (~267px / 580px)

Description Length116 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (6/8) — critical for accessibility and SEO

6 issues found

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Crawlability

Sitemap

Type: index

6 URLs

6 sub-sitemaps

robots.txt

5 rules

Local SEO

Local Search Readiness

26/100

Needs Work

9 8 1

Sponsored

AI & LLM Readiness

D52/100

Bot Access

20/25

Machine Read.

13/25

Schema Data

4/25

Citation

15/25

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:6%

Words:1,640

Token eff.:Optimal

Sections/1K:3.7

Depth:1/5

Structured Data

3 JSON-LD

WebSiteBreadcrumbListSearchAction

Citation Readiness

Opening Summary1144w

Descriptive Headingsavg 3.2w

Canonical URL

Open Graph2/3

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.

78/100

Passed

Critical

Warnings

Images & Alt Text

15/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

20/20

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

15/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

3/15

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.

18/100

1.90 g

CO₂e / view

15.0 MB

Page Weight

Cleaner Than

New Visitor

2.18 g

Returning (cached)

1.09 g

Annual (10K/mo)

228.6 kg

Emission Segments

Data Center

425 mg

Network

457 mg

Device

1.02 g

Resource Breakdown

JavaScript

466.8 KB

Images

561.0 KB

CSS

14.0 MB

Fonts

6.9 KB

HTML

25.2 KB

Other

307 B

Green Hosting Not Verified

The Constant Company, LLC

8 recommendations

•Carbon footprint recommendation preview...

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Security Score

86%Very Good

Interactive

HTTPS

No WAF

34d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

07.03.2026

Valid Until

05.06.2026

Subject Alternative Names (1)

www.winterthur.org

SHA-256 Fingerprint

B9:54:0C:C5:DA:DE:D7:CC:A4:97:59:8A:3B:AC:B3:CA:E0:9E:57:91...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

content-encoding

⚡ Brotli(br)

content-security-policy

form-action 'self'

content-type

text/html; charset=UTF-8

date

Sat, 02 May 2026 11:30:36 GMT

link

<https://www.winterthur.org/wp-json/>; rel="https://api.w.or...

permissions-policy

geolocation=*, private-state-token-redemption=(self "https:/...

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

winterthur-org.mail.protection.outlook.com

Domain Information

winterthur.org

Domain Age

28y 3m

Created

06.02.1998

Expires

05.02.2028

Last Updated

16.04.2026

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

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.

77/100

Mobile Friendly9 breakpoints

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

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

warnock-pro-display + lato

WCAG Partial

78/100

Readability

/30

24/30

16px · LH 1.55

Hierarchy

/20

16/20

1.56x ratio · ✓ H1→H6

WCAG

/25

18/25

1:1 min contrast

Performance

/25

20/25

2 fonts · 3 req

Heading Font

warnock-pro-display

Sans25px

Body Font

lato

Sans16px

Contrast Ratio

1:1

2 issues

Reading Comfort

~40 CPL

Narrow lines

25px

52px

40px

20px

16px

Major Second

Scale

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

✅ Optimal line spacing: 1.55 ratio (ideal range 1.4–1.6).

⚠️ Hard to read: Flesch score 40/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 1.0:1).

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

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

AAdobe Fonts Buy on MyFontsFlesch 40

Color Palette

12 unique colors

Light

#ffffff

Background· 19.7%

#646c30

Secondary· 12.899999999999999%

#010408

Primary· 12.4%

#424623

Secondary· 7.8%

#1c2313

Secondary· 7.8%

#959159

Secondary· 7.8%

#868143

Secondary· 7.3%

#213d36

Secondary· 3.6%

Business & Marketing Stack

6 Tools Detected

Enterprise

Marketing Automation

ActiveCampaignMid-Market

Email marketing and automation platforms

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

HotjarMid-Market

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Pinterest AdsMid-Market

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

connect.facebook.net(4)js.adsrvr.org(2)youtube.com(2)s.pinimg.com(2)static.hotjar.com(2)

Website Identity

Winterthur Museum, Garden & Library

Brandywine Valley Museum of American Decorative Arts and Gardens from home of Henry Francis du Pont (Wilmington, DE)

reference@winterthur.org

800.448.3883

www.winterthur.org/

28 years old

Location detected: 🇺🇸 United Statesvia ip

GoDaddy.com, LLC📧 Microsoft 365en-US

Social Profiles

Facebook X (Twitter)Instagram LinkedIn YouTube Pinterest

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Last analyzed: 02 May 2026 at 11:31

Historical Analysis & Change Tracking