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clld.org

https://clld.org· First analyzed 21 May 2026· Updated 21 May 2026
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clld.org
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Mobile screenshot of clld.org
Mobile

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Hosting Provider

GitHub Pages
pages.github.com

IP Address

185.199.109.153

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 San Francisco, United States

ASN

AS54113

Organization

GitHub, Inc

Server

GitHub.com

CDN

Fastly

Nameservers

cns2.alfahosting.info.cns1.alfahosting.info.cns3.alfahosting.info.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
515 ms10%
Speed Index
670 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
66 KB
11 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Frontend
Styling
Bootstrap
Infrastructure
Platform
GitHub Pages
CDN
Fastly

Technology Stack

3 Technologies Detected

CSS Frameworks

2
Bootstrap
Tailwind CSS

Libraries

1
jQueryv1.8.3

SEO Analysis

D53/100
15
8
2
Meta Tags7/15
Content9/12
Headings5/8
Technical11/21
E-E-A-T3/7
Images1/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
C
clld.orgclld.org

CLLD - Cross-Linguistic Linked Data

No description available for this page.

Title Length35 chars

Recommended: 50-60 chars (~208px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing meta description — important for click-through rates in SERPs
  • • Most images missing alt text (2/3) — critical for accessibility and SEO

10 issues found

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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

D43/100
Bot Access
20/25
Machine Read.
13/25
Schema Data
0/25
Citation
10/25

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:31%
Words:361
Token eff.:Optimal
Sections/1K:5.5

Structured Data

No Schema

Citation Readiness

Opening Summary38w
Descriptive Headingsavg 2w
Canonical URL
Open Graph0/3
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.
D
59/100
9
Passed
4
Critical
0
Warnings
Images & Alt Text
5/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
14/20
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
1/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
2 recommendations
  • •Accessibility recommendation preview...
Upgrade to view recommendations

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.
65/100
A+
8 mg
CO₂e / view
65.7 KB
Page Weight
95%
Cleaner Than
New Visitor
9 mg
vs
Returning (cached)
5 mg
Annual (10K/mo)
972 g
Emission Segments
Data Center
2 mg
Network
2 mg
Device
4 mg
Resource Breakdown
JavaScript
7.7 KB
Images
20.2 KB
CSS
34.5 KB
HTML
3.3 KB
Green Hosting Not Verified
GitHub Pages
2 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
B

Security Score

71%Good
Static / Informational

HTTPS

No WAF

68d

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

29.04.2026

Valid Until

28.07.2026

Subject Alternative Names (1)

clld.org

SHA-256 Fingerprint

F8:FA:69:66:D6:1D:49:71:AA:3B:A8:D1:C2:2A:08:7C:52:D4:F5:E4...

Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges
bytes
access-control-allow-origin
*
age
0
cache-control
🟡 600s(max-age=600)
content-encoding
📦 Gzip(gzip)
content-length
3054
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

20

SPF
DKIM
DMARC

MX Records (1)

mail.clld.org

Domain Information

clld.org

Domain Age
12y 7m

Created

13.10.2013

Expires

13.10.2026

Last Updated

04.04.2026

Registrar

united-domains GmbH

DNSSEC
Not Enabled

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.
D
56/100
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=1.0
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Helvetica Neue

WCAG Partial
72/100
Readability
/30
19/30

14px · LH 1.43

Hierarchy
/20
17/20

2.75x ratio

WCAG
/25
16/25

2.85:1 min contrast

Performance
/25
20/25

System fonts

Heading Font

Helvetica Neue

Sans39px

Body Font

Helvetica Neue

Sans14px

Contrast Ratio

2.85:1

15 issues

Reading Comfort

~44 CPL

Narrow lines
39px
h1
25px
h3
14px
p

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

✅ Optimal line spacing: 1.43 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 22/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 15 elements below WCAG AA threshold (min 2.9:1).

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

✅ Strong hierarchy: Headlines are 2.8x larger than body text.

Flesch 23

Color Palette

5 unique colors
2.75:1 Fail Light
#ffffff
Background· 83.99999999999999%
#9c9c9c
Other· 4%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

Social Media

1
Twitter/X WidgetsFree

Social widgets and sharing tools

2

Categories

2

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

5 Resources

3
Scripts
2
Styles
0
Async
0
Defer

Top Script Sources

platform.twitter.com(1)code.jquery.com(1)local(1)

Website Identity

clld.org

12 years old
Location detected: 🇺🇸 United Statesvia ip
united-domains GmbHen

Social Profiles

GitHub

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Last analyzed: 21 May 2026 at 00:58

Historical Analysis & Change Tracking