nibis.de

https://nibis.de· First analyzed 30 Apr 2026· Updated 30 Apr 2026

Export

nibis.de

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

104.18.18.218

Site Location

🇩🇪 Germanyvia tld

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

heather.ns.cloudflare.com.brian.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

463 ms10%

Speed Index

602 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

73 KB

6 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Cloudflare

CDN

Cloudflare

Technology Stack

2 Technologies Detected

CSS Frameworks

Tailwind CSS

CDN

Cloudflare

SEO Analysis

D56/100

Meta Tags9/15

Content11/12

Headings8/8

Technical10/21

E-E-A-T0/7

Images4/7

Links2/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

nibis.denibis.de

nibis – Das Niedersächsische Bildungsportal

No description available for this page.

Title Length43 chars

Recommended: 50-60 chars (~251px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

• Missing meta description — important for click-through rates in SERPs

9 issues found

Upgrade to view details

Local SEO

Local Search Readiness

5/100

Poor

2 13 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

D40/100

Bot Access

20/25

Machine Read.

14/25

Schema Data

0/25

Citation

6/25

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:38%

Words:554

Token eff.:Optimal

Sections/1K:18.1

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary37w

Descriptive Headingsavg 1.7w

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.

77/100

Passed

Critical

Warnings

Images & Alt Text

20/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

17/20

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

1/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

1 recommendation

•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.

74/100

A+

7 mg

CO₂e / view

73.0 KB

Page Weight

95%

Cleaner Than

New Visitor

8 mg

Returning (cached)

4 mg

Annual (10K/mo)

888 g

Emission Segments

Data Center

<0.001 g

Network

2 mg

Device

5 mg

Resource Breakdown

JavaScript

956 B

Images

17.4 KB

CSS

50.0 KB

HTML

4.6 KB

Green Hosting Verified

Cloudflare

GWF Verified

3 recommendations

•Carbon footprint recommendation preview...

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Security Score

71%Good

Static / Informational

HTTPS

WAF

76d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

17.04.2026

Valid Until

16.07.2026

Subject Alternative Names (19)

*.aba-stage.nibis.de*.aba.nibis.de*.abschluss.nibis.de*.austausch-stage.nibis.de*.austausch.nibis.de*.eval-bbs.nibis.de*.eval-portal.nibis.de*.eval.nibis.de+11 more

SHA-256 Fingerprint

55:B3:24:2D:D1:2E:51:6F:4D:BF:5A:0D:1F:B3:55:72:C6:62:67:CC...

Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cf-cache-status

DYNAMIC

cf-ray🇮🇹 Milan

9f496e2ebbcc6d36-MXP

content-encoding

📦 Gzip(gzip)

content-type

text/html

date

Thu, 30 Apr 2026 20:52:28 GMT

last-modified

Wed, 18 Feb 2026 14:45:22 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

mail.nibis.de

Domain Information

nibis.de

Last Updated

16.08.2024

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.

56/100

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

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Open Sans

WCAG AA

75/100

Readability

/30

22/30

16px · LH 1.50

Hierarchy

/20

13/20

1.88x ratio

WCAG

/25

22/25

5.5:1 min contrast

Performance

/25

18/25

1 font · 1 req

Heading Font

Open Sans

Sans30px

Body Font

Open Sans

Sans16px

Contrast Ratio

5.5:1

WCAG AA (≥4.5:1)

Reading Comfort

~33 CPL

Narrow lines

30px

21px

18px

16px

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

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

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 5.5:1).

⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

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

Buy on MyFontsFlesch 0

Color Palette

4 unique colors

2.83:1 Fail Light

#ffffff

Background· 85%

#a2979a

Other· 3.6%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

1 Resources

Scripts

Styles

Async

Defer

Top Script Sources

Website Identity

nibis.de

service@nibis.de

Location detected: 🇩🇪 Germanyvia tld

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Last analyzed: 30 Apr 2026 at 20:52

Historical Analysis & Change Tracking