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kermi.com

https://kermi.com· First analyzed 08 May 2026· Updated 08 May 2026
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kermi.com
Desktop screenshot of kermi.com
Mobile screenshot of kermi.com
Mobile

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Hosting Provider

eCommerce Hosting

IP Address

109.71.73.71

Site Location

🇩🇪 Germanyvia ip

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS47447

Organization

eCommerce Hosting

Server

Nginx

Nameservers

ns9.managed-ip.com.ns11.managed-ip.info.ns12.managed-ip.info.ns10.managed-ip.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
501 ms10%
Speed Index
651 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
620 KB
27 requests

Image Optimization

WebP
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
eCommerce Hosting

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

3 Technologies Detected

Analytics

1
Google Analytics

Tag Managers

1
Google Tag Manager

Web Servers

1
Nginx

SEO Analysis

D58/100
19
5
1
Meta Tags14/15
Content5/12
Headings0/8
Technical20/25
E-E-A-T2/7
Images0/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
K
kermi.comkermi.com

Intelligente Heizungsprodukte, Wärme- & Lüftungssysteme. | KERMI

Effektive Heizungs- und Lüftungsprodukte für Neubau & Renovierung. Für eine gesunde Umwelt und ein behagliches Raumklima in Räumen zum Wohnen und Arbeiten.

Title Length64 chars

Recommended: 50-60 chars (~388px / 580px)

Description Length155 chars

Recommended: 120-160 chars

Issues (1)

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

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

2 URLs

2 sub-sitemaps

robots.txt

30 rules

Sitemap reference found

Local SEO

Local Search Readiness

22/100
Needs Work
6 12

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AI & LLM Readiness

F30/100
Bot Access
20/25
Machine Read.
1/25
Schema Data
4/25
Citation
5/25

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
data-nosnippet

Machine Readability

llms.txt
llms-full.txt
Semantic HTML
Heading Hierarchy
Text ratio:4%
Words:59
Token eff.:Too Short

Structured Data

1 JSON-LD
Organization×1.1WebSite(min)microdata
sameAs entity links

Citation Readiness

Opening Summary
Descriptive Headings
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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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.
C
66/100
8
Passed
4
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
6/20
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.
2 recommendations
  • •Accessibility recommendation preview...
Upgrade to view recommendations

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
63 mg
CO₂e / view
620.2 KB
Page Weight
80%
Cleaner Than
New Visitor
72 mg
vs
Returning (cached)
36 mg
Annual (10K/mo)
7.5 kg
Emission Segments
Data Center
3 mg
Network
18 mg
Device
41 mg
Resource Breakdown
JavaScript
625 B
Images
420.0 KB
CSS
196.8 KB
HTML
2.8 KB
Green Hosting Verified
23M GmbH
GWF Verified
3 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
A

Security Score

86%Very Good
Interactive

HTTPS

No WAF

33d

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

13.03.2026

Valid Until

11.06.2026

Subject Alternative Names (20)

kermi.atkermi.bekermi.bykermi.chkermi.comkermi.czkermi.dekermi.fr+12 more

SHA-256 Fingerprint

73:2F:AC:50:07:C4:85:AF:39:16:6D:61:D3:0A:F6:62:A8:28:A3:F4...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🔴 No Cache(max-age=0, no-cache, must-revalidate)
content-encoding
⚡ Brotli(br)
content-security-policy
base-uri 'self';block-all-mixed-content; frame-ancestors 'se...
content-type
text/html;charset=UTF-8
date
Fri, 08 May 2026 08:20:34 GMT
permissions-policy
camera=(), geolocation=(), gyroscope=(), magnetometer=(), mi...
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

73

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

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

Domain Information

kermi.com

Domain Age
27y 1m

Created

17.03.1999

Expires

17.03.2027

Last Updated

21.10.2025

Registrar

InterNetX GmbH

DNSSEC
Not Enabled

Privacy & Compliance

Usercentrics

Cookie Consent Banner
Usercentrics
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
CMP: Usercentrics
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=1.0
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Matter

WCAG Partial
64/100
Readability
/30
22/30

20px · LH 1.40

Hierarchy
/20
10/20
WCAG
/25
14/25

1:1 min contrast

Performance
/25
18/25

1 font · 3 req

Heading Font

Matter

Body Font

Matter

Sans20px

Contrast Ratio

1:1

34 issues

Reading Comfort

Single Family

left aligned

✅ Excellent readability: 20px body text is ideal for all devices.

✅ Optimal line spacing: 1.40 ratio (ideal range 1.4–1.6).

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

⚠️ Partial contrast: 34 elements below WCAG AA threshold (min 1.0:1).

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

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

Buy on MyFontsFlesch 0

Color Palette

5 unique colors
12.23:1 AAA Dark
#373532
Other· 29.200000000000003%
#ffffff
Background· 21.7%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

12 Resources

10
Scripts
2
Styles
9
Async
0
Defer

Top Script Sources

web.cmp.usercentrics.eu(8)googletagmanager.com(1)local(1)

Website Identity

Kermi GmbH

Kermi GmbH

Organization
www.kermi.com
27 years old
Location detected: 🇩🇪 Germanyvia ip
InterNetX GmbHde

Sponsored

Last analyzed: 08 May 2026 at 08:20

Historical Analysis & Change Tracking

kermi.com Technology Stack - Built With Google Analytics, Google Tag Manager, Nginx | StackOptic | StackOptic