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bgbm.org

https://bgbm.org· First analyzed 03 May 2026· Updated 03 May 2026
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bgbm.org
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Mobile

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Hosting Provider

Freie Universitaet Berlin

IP Address

160.45.63.13

Site Location

🇩🇪 Germanyvia ip

Server Location

🇩🇪 Berlin, Germany

ASN

AS680

Organization

Freie Universitaet Berlin

Server

Apache

Nameservers

ns3.fu-berlin.de.dns-2.dfn.de.ns2.fu-berlin.de.ns1.fu-berlin.de.

Performance

98

Core Web Vitals

Weight

First Contentful Paint
883 ms10%
Speed Index
1.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
22.3 MB
29 requests

Image Optimization

Responsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Freie Universitaet Berlin

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

5 Technologies Detected

Fonts

2
Adobe Fonts (Typekit)Adobe Fonts

CSS Frameworks

1
Tailwind CSS

Analytics

1
Matomo

Web Servers

1
Apachev2.4.38

SEO Analysis

C60/100
17
7
2
Meta Tags9/15
Content11/12
Headings8/8
Technical15/25
E-E-A-T0/7
Images1/7
Links2/5
URL5/5
Social0/5
Freshness2/4
Mobile4/4
Indexability3/3
B
bgbm.orgbgbm.org

Botanischer Garten und Botanisches Museum Berlin

No description available for this page.

Title Length48 chars

Recommended: 50-60 chars (~297px / 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 (14/14) — critical for accessibility and SEO

9 issues found

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Crawlability

Sitemap

Type: standard

1,971 URLs

robots.txt

53 rules

Local SEO

Local Search Readiness

3/100
Poor
1 14 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

D42/100
Bot Access
20/25
Machine Read.
13/25
Schema Data
0/25
Citation
9/25

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:4%
Words:773
Token eff.:Optimal
Sections/1K:23.3
Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary67w
Descriptive Headingsavg 3.8w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (8)
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
83/100
13
Passed
2
Critical
1
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
9/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
4/15
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.
23/100
F
2.83 g
CO₂e / view
22.3 MB
Page Weight
5%
Cleaner Than
New Visitor
3.23 g
vs
Returning (cached)
1.61 g
Annual (10K/mo)
339.1 kg
Emission Segments
Data Center
631 mg
Network
678 mg
Device
1.52 g
Resource Breakdown
JavaScript
10.1 KB
Images
22.2 MB
CSS
78.3 KB
HTML
46.3 KB
Green Hosting Not Verified
Freie Universitaet Berlin
7 recommendations
  • •Carbon footprint recommendation preview...
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F

Security Score

21%Critical
Interactive

HTTPS

No WAF

164d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Hellenic Academic and Research Institutions CA

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

14.10.2025

Valid Until

14.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (8)

bgbm-bo.bgbm.fu-berlin.dewww.bo.berlintickets.bgbm.orgbgbm.orgwww.bgbm.orgstart.bo.berlinbo.berlintickets.bo.berlin

SHA-256 Fingerprint

45:A6:2A:D7:37:C5:90:5B:ED:70:8B:B1:9C:04:FC:78:C7:93:E9:46...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control
🔴 No Cache(no-store, no-cache, must-revalidate)
connection
Keep-Alive
content-encoding
📦 Gzip(gzip)
content-length
47069
content-type
text/html; charset=UTF-8
date
Sun, 03 May 2026 02:11:55 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

70

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

relay2.zedat.fu-berlin.de

Domain Information

bgbm.org

Domain Age
24y 8m

Created

29.08.2001

Expires

29.08.2026

Last Updated

13.10.2025

Registrar

COREhub, S.R.L.

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
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
3 recommendations
  • •Mobile compatibility recommendation preview...
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Typography & Readability

-apple-system + MarkW02-Narrow

WCAG Partial
66/100
Readability
/30
14/30

13px · LH 1.50

Hierarchy
/20
20/20

7.69x ratio · ✓ H1→H6

WCAG
/25
16/25

1:1 min contrast

Performance
/25
16/25

System fonts

Heading Font

-apple-system

Sans100px

Body Font

MarkW02-Narrow

Sans13px

Contrast Ratio

1:1

25 issues

Reading Comfort

~35 CPL

Narrow lines
100px
h1
80px
h2
42px
h3
13px
p

❌ Critical: 13px body text is too small. Minimum 14px, recommend 16px+.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 20/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 25 elements below WCAG AA threshold (min 1.0:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

✅ Strong hierarchy: Headlines are 7.7x larger than body text.

AAdobe FontsFlesch 20

Color Palette

7 unique colors
16.63:1 AAA Light
#ffffff
Primary· 46.00000000000001%
#201e1b
Secondary· 16.299999999999997%
#0a0a08
Background· 21.4%

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

3 Resources

1
Scripts
2
Styles
0
Async
1
Defer

Top Script Sources

local(1)

Website Identity

bgbm.org

24 years old
Location detected: 🇩🇪 Germanyvia ip
COREhub, S.R.L.de

Social Profiles

FacebookInstagram

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Last analyzed: 03 May 2026 at 02:12

Historical Analysis & Change Tracking