Marstek
marstek.de
Marstek.de is a German ecommerce store selling advanced energy storage systems and solar power solutions for homes and apartments. The product lineup includes balcony solar systems (Balkonkraftwerk), AC-coupled energy storage systems, portable power stations, and related accessories under brands like Venus, Jupiter, and Saturn series.
Performance Needs Attention
This store scores 37/100 on PageSpeed, which is below the recommended threshold of 50. The Largest Contentful Paint (LCP) is particularly slow. Consider optimizing images, reducing JavaScript, and enabling better caching.
Products
22
Collections
26
Pages
50
Blog Posts
6
CommerceRank Score
Overall store health assessment based on 5 key factors
59/100
Top Recommendations
- Critical: PageSpeed below 50 is hurting conversions
- PageSpeed is 18 points below Electronics category average (55)
- Fix LCP: Largest Contentful Paint is poor - optimise hero images and fonts
PageSpeed Performance Analysis
Mobile performance from Google PageSpeed • 22 Feb 2026
Overall Ranking
#14661 / 16375
Faster than 10% of stores
Electronics Ranking
#203 / 233
Top 87% in category
Category Avg Performance
55
-18 below avg
Category Avg LCP
2.0s
Slower than avg
Performance
Accessibility
SEO
Core Web Vitals
6.2s
Largest Contentful Paint
0.010
Cumulative Layout Shift
103ms
Interaction to Next Paint
Additional Metrics
6.0s
First Contentful Paint
317ms
Time to First Byte
42.5s
Speed Index
Store Audit
Actionable insights compared to 345 Electronics stores
#235 in Electronics
Below 68% of stores
99% below average
22 products vs 1,637 avg
Slower than 87% of Electronics stores
PageSpeed score: 37/100
Category Benchmarks
Compared to 345 stores in Electronics
99% below average
avg
69% below average
avg
67% above average
avg
82% below average
avg
Theme & Design
Theme Name
BespokeType
Custom / Bespoke
Tech Stack
Platform
shopify
Reviews Platform
TrustPilot
Payment / Finance
Business Profile
Store maturity and operational indicators
Stable
4 months
Since Nov 2025
Below average catalog size
Top 68% by catalog size
medium
Above-average content investment
Tech Stack Maturity
Advanced stack
Business Sophistication
Developing
Store Timeline & History
Nov 2025
Similar Electronics Stores
Other electronics stores with similar size
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About Marstek
Marstek is a electronics ecommerce store built on shopify and operating in DE. The store currently offers 22 products organized across 26 collections, making it comparable in size for the electronics category.
Theme and Design
Marstek uses the Bespoke theme, a custom-built solution tailored specifically for this store. This theme choice provides the foundation for their online presence.
Performance Analysis
Based on Google PageSpeed Insights, Marstek achieves a performance score of 37/100 on mobile devices. This score indicates significant opportunities for performance optimization, which could improve conversions and search rankings. The store also scores 84/100 for accessibility and 92/100 for SEO optimization.
Tech Stack
Beyond the core Shopify platform, Marstek uses TrustPilot for customer reviews and offers PayPal, Klarna for payment flexibility.
Competitive Positioning
Within the Electronics category, Marstek ranks #235 out of 345 stores we track. This places them in the top 68% of electronics stores by product catalog size.
Last scanned
Feb 18, 2026
