u-wert.net

https://u-wert.net· First analyzed 02 Jun 2026· Updated 02 Jun 2026

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u-wert.net

Mobile

Sponsored

Hosting Provider

Hetzner

hetzner.com

IP Address

136.243.160.120

Site Location

🇩🇪 Germanyvia ip

Server Location

🇩🇪 Nuremberg, Germany

ASN

AS24940

Organization

Hetzner

Server

Apache

Nameservers

ns2.goneo.de.ns1.goneo.de.

Performance

Core Web Vitals

Weight

First Contentful Paint

963 ms10%

Speed Index

1.3 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

428 KB

9 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

uwertxCustom

Technology Stack

5 Technologies Detected

Libraries

Analytics

Web Servers

Customer Support

SEO Analysis

D51/100

Meta Tags12/15

Content10/12

Headings3/8

Technical14/25

E-E-A-T0/7

Images2/7

Links4/5

URL5/5

Social0/5

Freshness0/4

Mobile1/4

Indexability0/3

u-wert.netu-wert.net

U-value calculator | ubakus.de

This RSI- and R-value calculator analyzes your component with regard to thermal insulation, moisture protection and heat protection

Title Length30 chars

Recommended: 50-60 chars (~175px / 580px)

Description Length131 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Page is set to noindex — will not appear in search results

15 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

4 URLs

4 sub-sitemaps

robots.txt

3 rules

Local SEO

Local Search Readiness

6/100

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

F34/100

Bot Access

20/25

Machine Read.

7/25

Schema Data

0/25

Citation

7/25

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

Text ratio:3%

Words:943

Token eff.:Optimal

Sections/1K:1.1

Structured Data

No Schema

Citation Readiness

Opening Summary74w

Descriptive Headingsavg 1w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (12)

AI readiness recommendation preview...

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Sponsored

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.

37/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

Semantic Structure

7/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

5/15

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

2/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

3/15

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

4 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.

65/100

43 mg

CO₂e / view

428.3 KB

Page Weight

90%

Cleaner Than

New Visitor

49 mg

Returning (cached)

25 mg

Annual (10K/mo)

5.2 kg

Emission Segments

Data Center

2 mg

Network

13 mg

Device

28 mg

Resource Breakdown

JavaScript

119.7 KB

Images

12.0 KB

CSS

92.7 KB

HTML

203.5 KB

Other

416 B

Green Hosting Verified

Hetzner Online GmbH

GWF Verified

3 recommendations

•Carbon footprint recommendation preview...

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Security Score

10%Critical

Critical / Transactional

HTTPS

No WAF

257d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (3072 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

06.02.2026

Valid Until

14.02.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.ubakus.deubakus.de

SHA-256 Fingerprint

6B:5E:42:74:D7:54:A2:A7:F7:2B:60:0E:CE:CF:FA:1B:65:DA:43:B0...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-store, no-cache, must-revalidate)

content-security-policy

frame-ancestors 'none'

content-type

text/html; charset=utf-8

date

Tue, 02 Jun 2026 20:19:39 GMT

expires

Thu, 19 Nov 1981 08:52:00 GMT

pragma

no-cache

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

mail.u-wert.net

Domain Information

u-wert.net

Domain Age

16y 11m

Created

14.06.2009

Expires

14.06.2026

Last Updated

13.07.2025

Registrar

EPAG Domainservices GmbH

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Data Protection Officer mentioned

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 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...

Upgrade to view recommendations

Typography & Readability

verdana

WCAG Partial

54/100

Readability

/30

16/30

16px · LH 1.15

Hierarchy

/20

8/20

WCAG

/25

16/25

1:1 min contrast

Performance

/25

14/25

1 font

Heading Font

verdana

Sans

Body Font

verdana

Sans16px

Contrast Ratio

1:1

4 issues

Reading Comfort

~36 CPL

Narrow lines

28px

18px

16px

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

⚠️ Tight line spacing (1.15). Increase to 1.4–1.6 for better readability.

⚠️ Hard to read: Flesch score 42/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 4 elements below WCAG AA threshold (min 1.0:1).

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

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

Buy on MyFontsFlesch 42

Color Palette

7 unique colors

9.39:1 AAA Light

#ffffff

Background· 43.8%

#46464a

Text· 15.9%

#f9e725

Primary· 5.7%

#f9f15e

Accent· 0%

Business & Marketing Stack

2 Tools Detected

Advanced

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Reviews & Social Proof

PowerReviewsEnterprise

Customer reviews and testimonials

Sponsored

Scripts & Styles

4 Resources

Scripts

Styles

Async

Defer

Top Script Sources

ubakus.de(1)

Website Identity

u-wert.net

16 years old

Location detected: 🇩🇪 Germanyvia ip

EPAG Domainservices GmbHen

Sponsored

Last analyzed: 02 Jun 2026 at 20:19

Historical Analysis & Change Tracking