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rbb888.de

https://rbb888.de· First analyzed 21 May 2026· Updated 21 May 2026
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rbb888.de
Desktop screenshot of rbb888.de
Mobile screenshot of rbb888.de
Mobile

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Hosting Provider

IP Network RBB Berlin Potsdam

IP Address

192.108.72.56

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Berlin, Germany

ASN

AS41969

Nameservers

auth2.dns.cogentco.com.ns1.vodafone-ip.de.ns2.vodafone-ip.de.auth1.dns.cogentco.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
563 ms10%
Speed Index
732 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.9 MB
86 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Adobe Experience Manager

Technology Stack

4 Technologies Detected

CSS Frameworks

2
Tailwind CSS
Foundation

Icon Libraries

1
Font Awesome

Customer Support

1
Zendesk

SEO Analysis

B74/100
20
6
1
Meta Tags10/15
Content11/12
Headings3/8
Technical21/25
E-E-A-T0/7
Images5/7
Links5/5
URL5/5
Social5/5
Freshness2/4
Mobile4/4
Indexability3/3
R
rbb888.derbb888.de

80er, 90er, 100% Berlin | rbb 88.8

80er, 90er, 100 % Berlin! Das ist rbb 88.8 vom Rundfunk Berlin-Brandenburg.

Title Length35 chars

Recommended: 50-60 chars (~204px / 580px)

Description Length75 chars

Recommended: 120-160 chars

Issues (1)

  • • Missing H1 tag — every page should have exactly one H1

7 issues found

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Crawlability

Sitemap
robots.txt

97 rules

Local SEO

Local Search Readiness

8/100
Poor
3 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

F34/100
Bot Access
5/25
Machine Read.
12/25
Schema Data
1/25
Citation
16/25

AI Bot Access

1/14 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
blockquotesdef. listsnav
Text ratio:12%
Words:2,885
Token eff.:Optimal
Sections/1K:13.5
Depth:3/5

Structured Data

1 JSON-LD
BreadcrumbList

Citation Readiness

Opening Summary200w
Descriptive Headingsavg 4.8w
Canonical URL
Open Graph3/3
Twitter Card3/3
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.
A
81/100
15
Passed
4
Critical
2
Warnings
Images & Alt Text
18/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
13/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
12/15
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
15/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
8/15
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.
37/100
D
241 mg
CO₂e / view
1.9 MB
Page Weight
50%
Cleaner Than
New Visitor
275 mg
vs
Returning (cached)
138 mg
Annual (10K/mo)
28.9 kg
Emission Segments
Data Center
54 mg
Network
58 mg
Device
129 mg
Resource Breakdown
JavaScript
753.2 KB
Images
677.5 KB
CSS
479.4 KB
HTML
25.6 KB
Other
11.4 KB
Green Hosting Not Verified
IP Network RBB Berlin Potsdam
7 recommendations
  • •Carbon footprint recommendation preview...
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D

Security Score

46%Poor
Interactive

HTTPS

No WAF

25d

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+H3

Valid From

18.03.2026

Valid Until

16.06.2026

Subject Alternative Names (10)

www.antennebrandenburg.dewww.fritz.dewww.inforadio.dewww.ohrenbaer.dewww.radiodrei.dewww.radioeins.dewww.rbb-online.dewww.rbb24.de+2 more

SHA-256 Fingerprint

87:E5:36:8D:A7:90:19:80:DF:2B:37:40:8F:2B:0C:D5:68:53:97:B5...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges
bytes
alt-svc
h3=":443"; ma=93600
content-encoding
📦 Gzip(gzip)
content-length
25895
content-type
text/html;charset=utf-8
date
Thu, 21 May 2026 11:02:57 GMT
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

100

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

rbb888-de.mail.protection.outlook.com

Domain Information

rbb888.de

Last Updated

05.05.2023

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
68/100
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
1 recommendation
  • •Mobile compatibility recommendation preview...
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Typography & Readability

Interstate

WCAG Partial
52/100
Readability
/30
20/30

14px · LH 1.43

Hierarchy
/20
8/20
WCAG
/25
13/25

4.34:1 min contrast

Performance
/25
11/25

1 font · 6 req

Heading Font

Interstate

Sans

Body Font

Interstate

Sans14px

Contrast Ratio

4.34:1

18 issues

Reading Comfort

~47 CPL

Optimal (45–75)
14px
h2
14px
h3
14px
h4
14px
p
Minor Second
Scale

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

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

✅ Optimal line length: ~47 chars/line (ideal 45–75 CPL).

⚠️ Partial contrast: 18 elements below WCAG AA threshold (min 4.3:1).

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

⚠️ Fluid type without rem: clamp() detected but missing rem units. May fail WCAG 1.4.4 zoom test.

Buy on MyFontsFluid TypeFlesch 52

Color Palette

10 unique colors
Light
#ffffff
Background· 27.099999999999998%
#1ccac6
Primary· 15.2%
#1dab9f
Accent· 15.1%
#00aca8
Accent· 14.2%
#a31219
Accent· 11.6%
#afd8d7
Secondary· 7%
#bb4445
Secondary· 6.2%
#4cada6
Secondary· 1.7%

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

25 Resources

20
Scripts
5
Styles
13
Async
0
Defer

Top Script Sources

local(17)gstatic.com(1)pkedcjkdefgpdelpbcmbmeomcjbeemfm(1)enhhojjnijigcajfphajepfemndkmdlo(1)

Website Identity

rbb888.de

studio@rbb888.de
Location detected: 🇩🇪 Germanyvia tld
📧 Microsoft 365de

Social Profiles

Facebook

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Last analyzed: 21 May 2026 at 11:03

Historical Analysis & Change Tracking