glottolog.org

https://glottolog.org· First analyzed 13 May 2026· Updated 13 May 2026

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glottolog.org

Mobile

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Hosting Provider

Gesellschaft fuer wissenschaftliche Datenverarbeitung mbH

IP Address

134.76.24.195

Site Location

🇩🇪 Germanyvia ip

Server Location

🇩🇪 Göttingen, Germany

ASN

AS207592

Organization

Gesellschaft fuer wissenschaftliche Datenverarbeitung mbH

Server

Gunicorn

Nameservers

celsius.eva.mpg.de.dns.globvill.ruhr.dns.voerde.globvill.de.dns.globvill.de.

Performance

Core Web Vitals

Weight

First Contentful Paint

726 ms10%

Speed Index

944 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1.6 MB

14 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Gesellschaft fuer wissenschaftliche Datenverarbeitung mbH

Technology Stack

1 Technologies Detected

CSS Frameworks

Tailwind CSS

SEO Analysis

D49/100

Meta Tags4/15

Content9/12

Headings3/8

Technical15/25

E-E-A-T3/7

Images1/7

Links2/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

glottolog.orgglottolog.org

Glottolog 5.3 -

No description available for this page.

Title Length15 chars

Recommended: 50-60 chars (~89px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (3)

• Missing meta description — important for click-through rates in SERPs
• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (5/6) — critical for accessibility and SEO

12 issues found

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Crawlability

Sitemap

Type: index

robots.txt

9 rules

Sitemap reference found

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

F33/100

Bot Access

20/25

Machine Read.

9/25

Schema Data

0/25

Citation

4/25

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

blockquotes

Text ratio:21%

Words:418

Token eff.:Optimal

Sections/1K:14.4

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary12w

Descriptive Headingsavg 2.8w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (11)

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.

50/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

Semantic Structure

9/20

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

6/15

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

ARIA & Roles

5/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

5 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.

39/100

200 mg

CO₂e / view

1.6 MB

Page Weight

60%

Cleaner Than

New Visitor

228 mg

Returning (cached)

114 mg

Annual (10K/mo)

24.0 kg

Emission Segments

Data Center

45 mg

Network

48 mg

Device

107 mg

Resource Breakdown

JavaScript

679.4 KB

Images

490.0 KB

CSS

182.3 KB

HTML

4.4 KB

Other

258.4 KB

Green Hosting Not Verified

Gesellschaft fuer wissenschaftliche Datenverarbeitung mbH

6 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

45d

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/1.1

Valid From

29.03.2026

Valid Until

27.06.2026

Subject Alternative Names (1)

glottolog.org

SHA-256 Fingerprint

D2:72:E5:94:E6:68:88:A6:B2:35:FF:78:30:90:83:EA:71:3C:A6:67...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=utf-8

date

Wed, 13 May 2026 03:02:48 GMT

link

<https://glottolog.org/void.json>; rel="alternate"; type="ap...

server

gunicorn

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

glottolog.org

Domain Age

17 years

Created

21.04.2009

Expires

21.04.2027

Last Updated

02.04.2026

Registrar

Global Village GmbH

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

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.

55/100

Mobile Friendly

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

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Helvetica Neue

WCAG Partial

63/100

Readability

/30

19/30

14px · LH 1.43

Hierarchy

/20

8/20

WCAG

/25

16/25

1.36:1 min contrast

Performance

/25

20/25

System fonts

Heading Font

Helvetica Neue

Sans

Body Font

Helvetica Neue

Sans14px

Contrast Ratio

1.36:1

24 issues

Reading Comfort

~44 CPL

Narrow lines

28px

25px

18px

14px

⚠️ 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 25/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 24 elements below WCAG AA threshold (min 1.4:1).

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

✅ System fonts: Zero font loading delay — best possible LCP impact.

Flesch 25

Color Palette

7 unique colors

17.93:1 AAA Light

#ffffff

Background· 66.5%

#171717

Text· 7.7%

#beb6a7

Primary· 6.5%

#efeeea

Secondary· 3.1%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

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Scripts & Styles

3 Resources

Scripts

Styles

Async

Defer

Top Script Sources

glottolog.org(2)

Website Identity

glottolog.org

17 years old

Location detected: 🇩🇪 Germanyvia ip

Global Village GmbHen

Social Profiles

GitHub

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Last analyzed: 13 May 2026 at 03:03

Historical Analysis & Change Tracking