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nabu.de

https://nabu.de· First analyzed 15 Feb 2026· Updated 15 Feb 2026
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nabu.de
Desktop screenshot of nabu.de
Mobile screenshot of nabu.de
Mobile

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Hosting Provider

IP Address

89.146.224.244

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS8495

Organization

INTERNET AG Global Network

Server

Apache

Nameservers

d.inet.ns01.eu.b.inet.ns01.eu.c.inet.ns01.eu.a.inet.ns01.eu.

Performance

Page Speed

10.7 MB
79 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPress
cms

Technology Stack

8 Technologies Detected

CSS Frameworks

1

Icon Libraries

1

Tag Managers

1

Advertising

1

Web Servers

1

SEO Analysis

B70/100
11
2
1
N
nabu.denabu.de

Wir sind die Naturschutzmacher*innen!

Der NABU ist seit 125 Jahren ein Zuhause für alle, die sich für unsere Natur und Umwelt engagieren. Egal ob im Pulli oder Anzug – Naturschutz kann jede*r.

Title Length37 chars

Recommended: 50-60 chars

Description Length154 chars

Recommended: 120-160 chars

Issues (1)

  • Many images missing alt text (59/90)

Crawlability

Sitemap

Type: standard

6,153 URLs

robots.txt

20 rules

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F

Security Score

21%Critical
Interactive

HTTPS

No WAF

160d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

03.07.2025

Valid Until

25.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.nabu.denabu.de

SHA-256 Fingerprint

37:9C:85:55:49:2C:06:FD:FC:18:AC:79:C6:EA:CF:BE:92:AE:5F:70...

Top Recommendations

Security recommendation preview

HTTP Headers

Developer Console

access-control-allow-headers
origin, x-requested-with, content-type, authorization, accep...
access-control-allow-methods
PUT, GET, POST, DELETE, OPTIONS
cache-control
🔴 No Cache(no-store, no-cache, must-revalidate, post-check=0, pre-check...)
content-encoding
📦 Gzip(gzip)
content-length
20187
content-type
text/html; charset=UTF-8
Good Warning Issue

Email Infrastructure

Microsoft 365

Score

90

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

nabu-de.mail.eo.outlook.com

Domain Information

nabu.de

Last Updated

10.03.2022

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
Privacy policy page linked

Typography & Readability

Source Sans Pro

50/100
Readability
/30
22/40

14px · LH --

Hierarchy
/20
25/25

2.57x ratio

WCAG
/25
5/15

Contrast: undefined

Performance
/25
13/20

1 font

Heading Font

Source Sans Pro

Sans36px

Body Font

Source Sans Pro

Sans14px

Contrast Ratio

--

Reading Comfort

~39 CPL

Needs attention
36px
h1
32px
h2
24px
h3
20px
h4
14px
p

⚠️ Small text: 14px may be hard to read on mobile. Consider 16px+.

✅ Strong hierarchy: Headlines are 2.6x larger than body text.

✅ Good performance: Using 1 font families keeps load times fast.

✅ Consistent design: Single font family with weight variations is a modern best practice.

✅ Smart font loading: Using font-display: swap prevents invisible text during load.

⚠️ Risky: Text appears on background images without overlay protection.

Business & Marketing Stack

3 Tools Detected

Growing

Behavior Analytics

3

User behavior and product analytics

1

Categories

3

Total Tools

0

Enterprise

1

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

18 Resources

14
Scripts
4
Styles
9
Async
2
Defer

Top Script Sources

local(12)stats.nabu.de(2)

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Last analyzed: 15 Feb 2026 at 07:23

Historical Analysis & Change Tracking