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lba.de

https://lba.de· First analyzed 01 May 2026· Updated 01 May 2026
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lba.de
Desktop screenshot of lba.de
Mobile screenshot of lba.de
Mobile

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Hosting Provider

Deutscher Wetterdienst

IP Address

141.38.3.30

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Offenbach, Germany

ASN

AS41289

Organization

Deutscher Wetterdienst

Server

Apache

Nameservers

dns-3.dfn.de.dnsisp2.dwd.de.dnsisp1.dwd.de.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
658 ms10%
Speed Index
855 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
2.6 MB
44 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Deutscher Wetterdienst

Technology Stack

4 Technologies Detected

CSS Frameworks

2
Tailwind CSS
Normalize.css

Icon Libraries

1
Font Awesome

Web Servers

1
Apache

SEO Analysis

D59/100
17
8
1
Meta Tags5/15
Content12/12
Headings6/8
Technical18/25
E-E-A-T0/7
Images1/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
L
lba.delba.de

Luftfahrt Bundesamt - LBA

Homepage des deutschsprachigen Auftritts

Title Length27 chars

Recommended: 50-60 chars (~170px / 580px)

Description Length40 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (12/14) — critical for accessibility and SEO

9 issues found

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Crawlability

Sitemap

Type: index

1 URLs

1 sub-sitemaps

robots.txt

9 rules

Sitemap reference found

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
header/footer
Text ratio:9%
Words:721
Token eff.:Optimal
Sections/1K:23.6
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary21w
Descriptive Headingsavg 2.3w
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.
B
71/100
12
Passed
3
Critical
2
Warnings
Images & Alt Text
10/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
18/20
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.
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.
27/100
E
323 mg
CO₂e / view
2.6 MB
Page Weight
30%
Cleaner Than
New Visitor
369 mg
vs
Returning (cached)
185 mg
Annual (10K/mo)
38.8 kg
Emission Segments
Data Center
72 mg
Network
78 mg
Device
174 mg
Resource Breakdown
JavaScript
212.8 KB
Images
2.1 MB
CSS
236.3 KB
HTML
8.7 KB
Other
19.6 KB
Green Hosting Not Verified
Deutscher Wetterdienst
5 recommendations
  • •Carbon footprint recommendation preview...
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A

Security Score

81%Very Good
Interactive

HTTPS

No WAF

92d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

01.08.2025

Valid Until

01.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (3)

lbaweb.mandant.dwd.delba.dewww.lba.de

SHA-256 Fingerprint

16:48:01:13:D4:4D:46:03:E3:A4:3D:1F:3C:96:D4:25:62:B3:19:5D...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control
🟡 0s(max-age=0)
content-encoding
📦 Gzip(gzip)
content-language
de
content-security-policy
default-src 'self' www.lba.de www2.lba.de nl-prox.dwd.de; sc...
content-type
text/html;charset=utf-8
date
Fri, 01 May 2026 22:07:22 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

65

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

ofcsgbbm.gbbmvi-wan.de
zbcsgbbm.gbbmvi-wan.de

Domain Information

lba.de

Last Updated

19.06.2017

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.
D
57/100
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, maximum-scale=1.5, user-scalable=1
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

bundessansweb

WCAG Partial
60/100
Readability
/30
18/30

15px · LH 1.50

Hierarchy
/20
15/20

1.73x ratio

WCAG
/25
14/25

1.37:1 min contrast

Performance
/25
13/25

1 font · 3 req

Heading Font

bundessansweb

Sans26px

Body Font

bundessansweb

Sans15px

Contrast Ratio

1.37:1

6 issues

Reading Comfort

~42 CPL

Narrow lines
26px
h1
18px
h2
25px
h3
15px
p
Minor Second
Scale

⚠️ Small text: 15px may strain on mobile. Use ≥16px for WCAG compliance.

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

❌ Very complex text: Flesch score 2/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 6 elements below WCAG AA threshold (min 1.4:1).

⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

✅ Lean font stack: 1 font families keeps load times fast.

Buy on MyFontsFlesch 2

Color Palette

6 unique colors
7.97:1 AAA Light
#ffffff
Background· 34.3%
#4b534a
Other· 11.8%
#011576
Primary· 23.5%
#9e9671
Secondary· 11.4%
#0f1c57
Accent· 2.6%

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

11 Resources

2
Scripts
9
Styles
0
Async
0
Defer

Top Script Sources

SiteGlobals(2)

Website Identity

lba.de

Location detected: 🇩🇪 Germanyvia tld
de

Social Profiles

FacebookX (Twitter)

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Last analyzed: 01 May 2026 at 22:07

Historical Analysis & Change Tracking