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leventhalmap.org

https://leventhalmap.org· First analyzed 14 May 2026· Updated 14 May 2026
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leventhalmap.org
Desktop screenshot of leventhalmap.org
Mobile screenshot of leventhalmap.org
Mobile

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Hosting Provider

Boston Public Library

IP Address

192.80.65.45

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Boston, United States

ASN

AS27370

Organization

Boston Public Library

Server

Apache

Nameservers

ns2.dnsmadeeasy.com.ns4.dnsmadeeasy.com.ns0.dnsmadeeasy.com.ns3.dnsmadeeasy.com.+1 more

Performance

98

Core Web Vitals

Weight

First Contentful Paint
941 ms10%
Speed Index
1.2 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
272 KB
39 requests

Image Optimization

Lazy LoadWebPUploadcare
0–49
50–89
90–100

Architecture Stack

JAMstack
⚡ SSG
Decoupled
Frontend
Framework
Astrov5.18.1
Styling
Tailwind CSS
API
Data Source
Headless CMS
Storyblok
Infrastructure
Hosting
Boston Public Library

Detected API Sources

https://app.storyblok.com/f/st...

Technology Stack

7 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Meta Frameworks

1
Astro

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Tag Managers

1
Google Tag Manager

Web Servers

1
Apachev2.4.52

SEO Analysis

C65/100
17
6
1
Meta Tags10/15
Content11/12
Headings6/8
Technical15/21
E-E-A-T0/7
Images3/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
L
leventhalmap.orgleventhalmap.org

Home - Leventhal Map & Education Center at the Boston Public Library

We use maps, geography, and history to explore the connections between places and people in Boston, New England, and beyond. Our collection of a quarter mill...

Description truncated.
Title Length68 chars

Recommended: 50-60 chars (~416px / 580px)

Description Length280 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (6/7) — critical for accessibility and SEO

7 issues found

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Local SEO

Local Search Readiness

9/100
Poor
4 12 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

D46/100
Bot Access
20/25
Machine Read.
13/25
Schema Data
0/25
Citation
13/25

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:9%
Words:604
Token eff.:Optimal
Sections/1K:19.9
Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary19w
Descriptive Headingsavg 3.9w
Canonical URL
Open Graph2/3
Twitter Card0/3
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
68/100
11
Passed
3
Critical
0
Warnings
Images & Alt Text
5/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
18/20
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
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.
67/100
A+
34 mg
CO₂e / view
271.9 KB
Page Weight
90%
Cleaner Than
New Visitor
38 mg
vs
Returning (cached)
19 mg
Annual (10K/mo)
4.0 kg
Emission Segments
Data Center
8 mg
Network
8 mg
Device
18 mg
Resource Breakdown
JavaScript
165.0 KB
Images
52.2 KB
CSS
46.1 KB
HTML
8.6 KB
Green Hosting Not Verified
Boston Public Library
4 recommendations
  • •Carbon footprint recommendation preview...
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F

Security Score

21%Critical
Interactive

HTTPS

No WAF

298d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

GoDaddy.com, Inc.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

04.02.2026

Valid Until

08.03.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.leventhalmap.orgleventhalmap.org

SHA-256 Fingerprint

C3:CD:8C:7B:AD:5E:10:CE:88:D9:C3:3E:96:6C:F3:C8:2A:DF:BB:33...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges
bytes
connection
Keep-Alive
content-encoding
📦 Gzip(gzip)
content-length
8481
content-type
text/html
date
Thu, 14 May 2026 12:30:13 GMT
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

100

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

leventhalmap-org.mail.protection.outlook.com

Domain Information

leventhalmap.org

Domain Age
9y 9m

Created

22.07.2016

Expires

22.07.2027

Last Updated

05.09.2024

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.
C
63/100
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, maximum-scale=1
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

hero-new + freight-micro-pro

WCAG Partial
65/100
Readability
/30
22/30

18px · LH 1.65

Hierarchy
/20
17/20

3.06x ratio

WCAG
/25
10/25

1:1 min contrast

Performance
/25
16/25

2 fonts

Heading Font

hero-new

Sans55px

Body Font

freight-micro-pro

Sans18px

Contrast Ratio

1:1

8 issues

Reading Comfort

~38 CPL

Narrow lines
55px
h1
40px
h2
25px
h3
20px
h4
18px
p

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

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

⚠️ Partial contrast: 8 elements below WCAG AA threshold (min 1.0:1).

⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

✅ Strong hierarchy: Headlines are 3.1x larger than body text.

❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

Buy on MyFontsFlesch 0

Color Palette

9 unique colors
12.61:1 AAA Light
#ffffff
Background· 15.600000000000001%
#34323b
Text· 10.899999999999999%
#3b4758
Secondary· 25.7%
#20384d
Secondary· 22%
#1b1527
Secondary· 8.4%
#054571
Primary· 6.9%
#4a5565
Secondary· 6.4%
#a7b1b9
Secondary· 3%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

13 Resources

11
Scripts
2
Styles
8
Async
0
Defer

Top Script Sources

static.fundraiseup.com(5)local(3)cdn.fundraiseup.com(1)app.storyblok.com(1)googletagmanager.com(1)

Website Identity

leventhalmap.org

info@leventhalmap.org
9 years old
Location detected: 🇺🇸 United Statesvia ip
GoDaddy.com, LLC📧 Microsoft 365en

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Last analyzed: 14 May 2026 at 12:30

Historical Analysis & Change Tracking