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haustec.de

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

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Hosting Provider

Krauthosting

IP Address

212.224.92.149

Site Location

🇩🇪 Germanyvia tld

Server Location

🇩🇪 Neu-Isenburg, Germany

ASN

AS44066

Organization

Krauthosting

Server

Nginx

Nameservers

ns73.domaincontrol.com.ns74.domaincontrol.com.

Performance

99

Core Web Vitals

Weight

First Contentful Paint
756 ms10%
Speed Index
983 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
3.5 MB
250 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Drupal

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

13 Technologies Detected

Analytics

3
Google Analytics
Google Analytics 4
Facebook Pixel

UI Components

2
SwiperFancybox

Icon Libraries

2
Font AwesomeMaterial Icons

Advertising

2
Google AdsGoogle AdSense

Libraries

1
jQuery

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Web Servers

1
Nginx

SEO Analysis

B75/100
22
6
1
Meta Tags14/15
Content10/12
Headings3/8
Technical21/25
E-E-A-T0/7
Images6/7
Links5/5
URL5/5
Social2/5
Freshness2/4
Mobile4/4
Indexability3/3
H
haustec.dehaustec.de

haustec.de | Fachportal für Gebäudetechnik

Das Portal für Fachhandwerker: Branchennews, Fachwissen und jede Menge Tipps und Tricks aus der Praxis rund um die Gebäude- und Fassadentechnik.

Title Length42 chars

Recommended: 50-60 chars (~254px / 580px)

Description Length144 chars

Recommended: 120-160 chars

Issues (1)

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

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

5 URLs

5 sub-sitemaps

robots.txt

60 rules

Sitemap reference found

Local SEO

Local Search Readiness

9/100
Poor
3 13 1

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

D45/100
Bot Access
20/25
Machine Read.
8/25
Schema Data
2/25
Citation
15/25

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
nav
Text ratio:5%
Words:3,931
Token eff.:Good
Sections/1K:4.6
Depth:1/5

Structured Data

1 JSON-LD
WebSite

Citation Readiness

Opening Summary29w
Descriptive Headingsavg 6.1w
Canonical URL
Open Graph1/3
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.
A
81/100
12
Passed
3
Critical
0
Warnings
Images & Alt Text
20/20
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
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
9/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
2 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.
48/100
E
357 mg
CO₂e / view
3.5 MB
Page Weight
15%
Cleaner Than
New Visitor
408 mg
vs
Returning (cached)
204 mg
Annual (10K/mo)
42.8 kg
Emission Segments
Data Center
18 mg
Network
105 mg
Device
235 mg
Resource Breakdown
JavaScript
686.1 KB
Images
1.7 MB
CSS
410.0 KB
Fonts
618.3 KB
HTML
72.7 KB
Other
627 B
Green Hosting Verified
firstcolo
GWF Verified
7 recommendations
  • •Carbon footprint recommendation preview...
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C

Security Score

61%Fair
Interactive

HTTPS

No WAF

52d

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

14.04.2026

Valid Until

13.07.2026

Subject Alternative Names (3)

gentner-haustec.prd.migrate.arocom.kraut.cloudhaustec.dewww.haustec.de

SHA-256 Fingerprint

51:D9:99:27:9E:56:B9:FE:68:F3:24:12:D2:01:FD:8C:01:AB:E0:24...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control
🔵 1 Days(max-age=86400, public)
content-encoding
📦 Gzip(gzip)
content-language
de
content-type
text/html; charset=UTF-8
date
Thu, 21 May 2026 21:04:06 GMT
etag
W/"1779372870"
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

70

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

mx-02-eu-central-1.prod.hydra.sophos.com
mx-01-eu-central-1.prod.hydra.sophos.com

Domain Information

haustec.de

Last Updated

18.01.2021

DNSSEC
Not Enabled

Privacy & Compliance

Quantcast Choice

Cookie Consent Banner
Quantcast Choice
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Quantcast Choice
Privacy policy page linked
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.
B
79/100
Mobile Friendly17 breakpoints
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...
Upgrade to view recommendations

Typography & Readability

Source Sans Pro

WCAG Partial
65/100
Readability
/30
22/30

18px · LH 1.33

Hierarchy
/20
8/20
WCAG
/25
19/25

2.85:1 min contrast

Performance
/25
16/25

1 font · 7 req

Heading Font

Source Sans Pro

Sans

Body Font

Source Sans Pro

Sans18px

Contrast Ratio

2.85:1

1 issue

Reading Comfort

~35 CPL

Narrow lines
30px
h2
36px
h3
18px
p
Minor Third
Scale

✅ Excellent readability: 18px body text is ideal for all devices.

⚠️ Tight line spacing (1.33). Increase to 1.4–1.6 for better readability.

⚠️ Partial contrast: 1 elements below WCAG AA threshold (min 2.9:1).

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

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

✅ Smart font loading: font-display: swap prevents invisible text during load (FOIT).

Buy on MyFonts

Color Palette

9 unique colors
Light
#ffffff
Primary· 79.19999999999999%
#0b86d1
Accent· 8.1%
#81523c
Secondary· 2.9%
#3d2d28
Secondary· 2.4%
#c9a38f
Secondary· 2.1%
#8d7b72
Secondary· 2.1%
#e2ac8a
Accent· 2%
#f0e4db
Secondary· 1%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

Advertising

1
Google AdsEnterprise

Ad platforms and retargeting pixels

2

Categories

3

Total Tools

1

Enterprise

0

Mid-Market

Assessment: Well-developed marketing technology stack

Ad Networks

Google AdSense

Sponsored

Scripts & Styles

26 Resources

20
Scripts
6
Styles
6
Async
1
Defer

Top Script Sources

local(9)pagead2.googlesyndication.com(2)googletagmanager.com(2)sdk.mrf.io(2)cdn.privacy-mgmt.com(2)

Website Identity

Haustec

www.haustec.de/
Location detected: 🇩🇪 Germanyvia tld
de

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Last analyzed: 21 May 2026 at 21:04

Historical Analysis & Change Tracking