metabrainz.org

https://metabrainz.org· First analyzed 22 May 2026· Updated 22 May 2026

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metabrainz.org

Mobile

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Hosting Provider

Hetzner

hetzner.com

IP Address

142.132.241.153

Site Location

🇩🇪 Germanyvia ip

Server Location

🇩🇪 Falkenstein, Germany

ASN

AS24940

Organization

Hetzner Online GmbH

Server

OpenResty

Nameservers

ns-229-a.gandi.net.ns-136-c.gandi.net.ns-131-b.gandi.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

510 ms10%

Speed Index

663 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

113 KB

18 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

Infrastructure

Hosting

Hetzner

Technology Stack

4 Technologies Detected

CSS Frameworks

Libraries

Web Servers

SEO Analysis

D48/100

Meta Tags4/15

Content10/12

Headings3/8

Technical13/25

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

metabrainz.orgmetabrainz.org

MetaBrainz Foundation

No description available for this page.

Title Length21 chars

Recommended: 50-60 chars (~128px / 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 (9/10) — critical for accessibility and SEO

11 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

10 rules

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

F39/100

Bot Access

20/25

Machine Read.

9/25

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

nav

Text ratio:17%

Words:317

Token eff.:Optimal

Sections/1K:3.2

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary37w

Descriptive Headingsavg 3w

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.

56/100

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

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

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.

69/100

A+

11 mg

CO₂e / view

113.2 KB

Page Weight

95%

Cleaner Than

New Visitor

13 mg

Returning (cached)

7 mg

Annual (10K/mo)

1.4 kg

Emission Segments

Data Center

<0.001 g

Network

3 mg

Device

8 mg

Resource Breakdown

JavaScript

36.9 KB

Images

51.3 KB

CSS

21.9 KB

HTML

3.1 KB

Green Hosting Verified

Hetzner Online GmbH

GWF Verified

3 recommendations

•Carbon footprint recommendation preview...

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Security Score

71%Good

Static / Informational

HTTPS

No WAF

146d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Gandi SAS

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

31.03.2026

Valid Until

15.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (3)

metabrainz.orgcommunity.metabrainz.orgtest.metabrainz.org

SHA-256 Fingerprint

52:B7:AE:94:CC:52:0B:17:A6:79:CD:3B:F1:03:10:0C:75:39:13:5C...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=utf-8

date

Fri, 22 May 2026 16:27:35 GMT

server

openresty

vary

Accept-Encoding, Cookie

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (5)

alt4.aspmx.l.google.com

alt2.aspmx.l.google.com

alt3.aspmx.l.google.com

alt1.aspmx.l.google.com

+1 more

Domain Information

metabrainz.org

Domain Age

22y 8m

Created

19.09.2003

Expires

19.09.2029

Last Updated

31.05.2025

Registrar

Gandi SAS

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.

58/100

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

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Roboto + Sintony

WCAG Partial

67/100

Readability

/30

26/30

16px · LH 1.43

Hierarchy

/20

7/20

WCAG

/25

17/25

4.13:1 min contrast

Performance

/25

17/25

System fonts

Heading Font

Roboto

Sans

Body Font

Sintony

Sans16px

Contrast Ratio

4.13:1

26 issues

Reading Comfort

~39 CPL

Narrow lines

34px

16px

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

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

⚠️ Hard to read: Flesch score 43/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 26 elements below WCAG AA threshold (min 4.1:1).

❌ 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 43

Color Palette

9 unique colors

3.25:1 AA Large Light

#ffffff

Background· 87.9%

#899092

Other· 2%

#cfd8cf

Primary· 2%

#91616a

Secondary· 1.7%

#e1e8e7

Border· 1.7%

#d1c5bf

Secondary· 0.8%

#98b8b9

Secondary· 0.7%

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Scripts & Styles

3 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(2)

Website Identity

metabrainz.org

22 years old

Location detected: 🇩🇪 Germanyvia ip

Gandi SAS📧 Google Workspaceen

Social Profiles

X (Twitter)Instagram Mastodon Bluesky

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Last analyzed: 22 May 2026 at 16:27

Historical Analysis & Change Tracking