kostal-solar-electric.com

https://kostal-solar-electric.com· First analyzed 22 May 2026· Updated 22 May 2026

Export

Mobile

Sponsored

Hosting Provider

Microsoft Azure

azure.microsoft.com

IP Address

150.171.109.196

Site Location

🇰🇪 Kenyavia ip

Server Location

🇰🇪 Nairobi, Kenya

ASN

AS8075

Organization

Microsoft Corporation

CDN

Nameservers

ns4.eurodns.com.ns1.eurodns.com.ns2.eurodns.com.ns3.eurodns.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

731 ms10%

Speed Index

950 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

2.1 MB

59 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

TYPO3

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

6 Technologies Detected

Analytics

UI Components

CSS Frameworks

Tag Managers

SEO Analysis

A81/100

Meta Tags14/15

Content12/12

Headings8/8

Technical24/25

E-E-A-T2/7

Images2/7

Links5/5

URL5/5

Social3/5

Freshness2/4

Mobile1/4

Indexability3/3

kostal-solar-electric.comkostal-solar-electric.com

KOSTAL Solar Electric | Photovoltaik-Produkte| Made in Germany

KOSTAL: Wechselrichter, Energiemanagement & Speicher – innovative, effiziente & nachhaltige Lösungen für PV-Anlagen aus deutscher Produktion.

Title Length62 chars

Recommended: 50-60 chars (~378px / 580px)

Description Length142 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (20/23) — critical for accessibility and SEO

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

2 URLs

2 sub-sitemaps

robots.txt

18 rules

Sitemap reference found

Local SEO

Local Search Readiness

14/100

Poor

4 13 1

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

Sponsored

AI & LLM Readiness

D50/100

Bot Access

20/25

Machine Read.

13/25

Schema Data

4/25

Citation

13/25

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

navheader/footer

Text ratio:9%

Words:1,512

Token eff.:Optimal

Sections/1K:12.6

Depth:2/5

Structured Data

Microdata

Article×1.2microdataOrganization×1.1microdata

Citation Readiness

Opening Summary17w

Descriptive Headingsavg 4.7w

Canonical URL

Open Graph2/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

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.

A+

90/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

20/20

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

13/15

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

ARIA & Roles

7/15

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

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.

54/100

220 mg

CO₂e / view

2.1 MB

Page Weight

50%

Cleaner Than

New Visitor

251 mg

Returning (cached)

126 mg

Annual (10K/mo)

26.4 kg

Emission Segments

Data Center

11 mg

Network

65 mg

Device

145 mg

Resource Breakdown

JavaScript

184.8 KB

Images

739.9 KB

CSS

1.2 MB

HTML

14.0 KB

Green Hosting Verified

Microsoft Azure

Provider Match

4 recommendations

•Carbon footprint recommendation preview...

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A+

Security Score

95%Excellent

Static / Informational

HTTPS

No WAF

174d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

12.10.2025

Valid Until

12.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.kostal-solar-electric.comkostal-solar-electric.com

SHA-256 Fingerprint

0C:76:00:30:8D:B2:A9:0F:DC:35:E2:7E:84:F9:AF:E0:CA:A8:49:1B...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

cache-control

🟡 22 Hours(max-age=82380)

content-encoding

📦 Gzip(gzip)

content-language

de-DE

content-length

14042

content-type

text/html; charset=utf-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

kostal-solar-electric.com

Domain Age

19y 4m

Created

26.01.2007

Expires

26.01.2027

Last Updated

20.01.2026

Registrar

EuroDNS S.A.

DNSSEC

Not Enabled

Privacy & Compliance

Usercentrics

Cookie Consent Banner

Usercentrics

GDPR Indicators

Cookie consent banner detected

CMP: Usercentrics

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.

78/100

Mobile Friendly11 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

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

NeueHelvetica

WCAG Partial

76/100

Readability

/30

24/30

17px · LH 1.59

Hierarchy

/20

16/20

2.94x ratio · ✓ H1→H6

WCAG

/25

18/25

2.02:1 min contrast

Performance

/25

18/25

1 font · 4 req

Heading Font

NeueHelvetica

Sans50px

Body Font

NeueHelvetica

Sans17px

Contrast Ratio

2.02:1

22 issues

Reading Comfort

~43 CPL

Narrow lines

50px

40px

26px

20px

17px

✅ Excellent readability: 17px body text is ideal for all devices.

✅ Optimal line spacing: 1.59 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 4/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 22 elements below WCAG AA threshold (min 2.0:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

✅ Strong hierarchy: Headlines are 2.9x larger than body text.

Buy on MyFontsFluid Type (rem)Flesch 4

Color Palette

6 unique colors

4.95:1 AA Dark

#707070

Other· 40.900000000000006%

#ffffff

Background· 37.699999999999996%

#2c3745

Primary· 7.3%

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Social Media

Facebook SDKFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

17 Resources

Scripts

Styles

Async

Defer

Top Script Sources

web.cmp.usercentrics.eu(8)local(2)connect.facebook.net(1)googletagmanager.com(1)privacy-proxy.usercentrics.eu(1)

Website Identity

kostal-solar-electric.com

19 years old

Location detected: 🇰🇪 Kenyavia ip

EuroDNS S.A.de

Sponsored

Last analyzed: 22 May 2026 at 14:00

Historical Analysis & Change Tracking