Semilac
semilac.co.uk
Semilac is a UK-based beauty cosmetics retailer specializing in professional-grade UV gel nail polish, extension liquids, oils, and manicure accessories. The brand offers cruelty-free, vegan products with over 350 gel polish colors, lamps, drills, and nail art supplies, targeting both professional and at-home manicure enthusiasts.
Performance Needs Attention
This store scores 47/100 on PageSpeed, which is below the recommended threshold of 50. Consider optimizing images, reducing JavaScript, and enabling better caching.
Products
692
Collections
148
Pages
51
Blog Posts
408
CommerceRank Score
Overall store health assessment based on 5 key factors
72/100
Top Recommendations
- Critical: PageSpeed below 50 is hurting conversions
PageSpeed Performance Analysis
Mobile performance from Google PageSpeed • 22 Feb 2026
Overall Ranking
#2 / 16375
Faster than 100% of stores
Beauty & Cosmetics Ranking
#1 / 403
Top 0% in category
Category Avg Performance
56
-9 below avg
Category Avg LCP
1.9s
Faster than avg
Performance
Accessibility
SEO
Core Web Vitals
1.2s
Largest Contentful Paint
0.000
Cumulative Layout Shift
131ms
Interaction to Next Paint
Additional Metrics
Store Audit
Actionable insights compared to 572 Beauty & Cosmetics stores
#3 in Beauty & Cosmetics
Top 1% of stores
120% above average
692 products vs 315 avg
Faster than 100% of Beauty & Cosmetics stores
PageSpeed score: 47/100
Category Benchmarks
Compared to 572 stores in Beauty & Cosmetics
120% above average
avg
185% above average
avg
168% above average
avg
1411% above average
avg
Theme & Design
Tech Stack
Platform
shopify
Reviews Platform
TrustPilot
Payment / Finance
Business Profile
Store maturity and operational indicators
Stable
NaN+ year
Since Invalid Date
Top 10% largest catalog
Top 1% by catalog size
high
Strong content (408 blogs, 51 pages)
Tech Stack Maturity
Advanced stack
Business Sophistication
Mature
Store Timeline & History
Feb 2026
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About Semilac
Semilac is a beauty & cosmetics ecommerce store built on shopify and operating in GB. The store currently offers 692 products organized across 148 collections, making it larger than average for the beauty & cosmetics category.
Theme and Design
Semilac uses the Warehouse theme from the Shopify Theme Store. This theme choice provides the foundation for their online presence.
Performance Analysis
Based on Google PageSpeed Insights, Semilac achieves a performance score of 47/100 on mobile devices. This score indicates significant opportunities for performance optimization, which could improve conversions and search rankings. The store also scores 80/100 for accessibility and 92/100 for SEO optimization.
Tech Stack
Beyond the core Shopify platform, Semilac uses TrustPilot for customer reviews and offers PayPal, Klarna for payment flexibility.
Competitive Positioning
Within the Beauty & Cosmetics category, Semilac ranks #3 out of 572 stores we track. This places them in the top 1% of beauty & cosmetics stores by product catalog size.
Last scanned
Feb 22, 2026
