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rockarch.org

https://rockarch.org· First analyzed 11 May 2026· Updated 11 May 2026
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rockarch.org
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Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

18.160.46.89

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Seattle, United States

ASN

AS16509

Organization

AWS CloudFront (GLOBAL)

Server

AmazonS3

CDN

CloudFront

Nameservers

ns3.dnsmadeeasy.com.ns2.dnsmadeeasy.com.ns4.dnsmadeeasy.com.ns1.dnsmadeeasy.com.+1 more

Performance

100

Core Web Vitals

Weight

First Contentful Paint
592 ms10%
Speed Index
770 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
4.2 MB
21 requests
0–49
50–89
90–100

Architecture Stack

JAMstack
⚡ SSG
Frontend
Framework
Jekyllv4.4.1
Infrastructure
Platform
AWS CloudFront
CDN
CloudFront

Technology Stack

3 Technologies Detected

Libraries

1
jQueryv3.3.1

CSS Frameworks

1
Tailwind CSS

Analytics

1
Matomo

SEO Analysis

C63/100
17
6
2
Meta Tags9/15
Content12/12
Headings8/8
Technical13/21
E-E-A-T0/7
Images1/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
R
rockarch.orgrockarch.org

Rockefeller Archive Center | The Rockefeller Archive Center is a ma...

The Rockefeller Archive Center is a major repository and research center for the study of philanthropy and its impact throughout the world.

Title truncated.
Title Length168 chars

Recommended: 50-60 chars (~1017px / 580px)

Description Length139 chars

Recommended: 120-160 chars

Issues (2)

  • • Title is too long (168 chars, ~1017px). Will be truncated in search results.
  • • Most images missing alt text (5/5) — critical for accessibility and SEO

8 issues found

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Local SEO

Local Search Readiness

17/100
Poor
5 11 1

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

D44/100
Bot Access
20/25
Machine Read.
14/25
Schema Data
2/25
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:12%
Words:474
Token eff.:Optimal
Sections/1K:42.2
Depth:2/5

Structured Data

1 JSON-LD
WebSite

Citation Readiness

Opening Summary11w
Descriptive Headingsavg 2.5w
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.
A
89/100
14
Passed
0
Critical
0
Warnings
Images & Alt Text
20/20
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
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
6/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

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.
40/100
F
430 mg
CO₂e / view
4.2 MB
Page Weight
15%
Cleaner Than
New Visitor
491 mg
vs
Returning (cached)
245 mg
Annual (10K/mo)
51.5 kg
Emission Segments
Data Center
21 mg
Network
126 mg
Device
282 mg
Resource Breakdown
JavaScript
2.8 KB
Images
5.8 KB
CSS
4.1 MB
HTML
5.7 KB
Green Hosting Verified
Amazon Web Services (AWS)
Provider Match
2 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
B

Security Score

71%Good
Static / Informational

HTTPS

WAF

206d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Amazon

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

04.11.2025

Valid Until

03.12.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

rockarch.org

SHA-256 Fingerprint

CD:A6:BF:75:E7:7D:9D:5F:CB:67:17:FE:DE:68:56:CF:46:DC:85:E3...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

age
72119
alt-svc
h3=":443"; ma=86400
cache-control
🟡 0s(public, max-age=0, s-maxage=31536000)
content-encoding
⚡ Brotli(br)
content-type
text/html
date
Sun, 10 May 2026 04:47:49 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

100

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

mx1-us1.ppe-hosted.com
mx2-us1.ppe-hosted.com

Domain Information

rockarch.org

Domain Age
17y 10m

Created

24.06.2008

Expires

24.06.2028

Last Updated

12.04.2023

Registrar

Network Solutions, 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.
C
60/100
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
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Manuale

WCAG Partial
73/100
Readability
/30
22/30

15px · LH 1.40

Hierarchy
/20
17/20

1.6x ratio · ✓ H1→H6

WCAG
/25
18/25

1:1 min contrast

Performance
/25
16/25

2 fonts

Heading Font

Manuale

Sans24px

Body Font

Manuale

Sans15px

Contrast Ratio

1:1

1 issue

Reading Comfort

~39 CPL

Narrow lines
24px
h1
30px
h2
17px
h3
15px
p

⚠️ Small text: 15px may strain on mobile. Use ≥16px for WCAG compliance.

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

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

⚠️ Partial contrast: 1 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.

Buy on MyFontsFlesch 40

Color Palette

9 unique colors
3.16:1 AA Large Light
#ffffff
Background· 20.500000000000004%
#9b8e8d
Other· 3.7%
#31435b
Secondary· 44.69999999999999%
#b53c0d
Primary· 10.6%
#d0d4da
Secondary· 9.4%
#b6bfc9
Secondary· 7.1%
#e6ecf0
Secondary· 2.6%
#92503c
Secondary· 1.1%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
Matomo (Piwik)Mid-Market
Google AnalyticsFree

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

1

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

8 Resources

6
Scripts
2
Styles
1
Async
0
Defer

Top Script Sources

local(3)cdn.matomo.cloud(1)cdn.lightwidget.com(1)code.jquery.com(1)

Website Identity

Rockefeller Archive Center

The Rockefeller Archive Center is a major repository and research center for the study of philanthropy and its impact throughout the world.

archive@rockarch.org
/
17 years old
Location detected: 🇺🇸 United Statesvia ip
Network Solutions, LLCen

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Last analyzed: 11 May 2026 at 00:50

Historical Analysis & Change Tracking