Cossac
cossac.co.uk
COSSAC is a sustainable fashion brand specializing in women's clothing including dresses, lightweight tailoring, tops, bodysuits, bottoms, and outerwear. The store emphasizes feminine minimal aesthetics and offers curated capsule wardrobe pieces with a commitment to sustainability and ethical manufacturing practices.
Performance Needs Attention
This store scores 43/100 on PageSpeed, which is below the recommended threshold of 50. Consider optimizing images, reducing JavaScript, and enabling better caching.
Products
52
Collections
8
Pages
20
Blog Posts
3
CommerceRank Score
Overall store health assessment based on 5 key factors
61/100
Top Recommendations
- Critical: PageSpeed below 50 is hurting conversions
- PageSpeed is 14 points below Fashion & Clothing category average (57)
PageSpeed Performance Analysis
Mobile performance from Google PageSpeed • 23 Feb 2026
Overall Ranking
#2 / 16375
Faster than 100% of stores
Fashion & Clothing Ranking
#2 / 2989
Top 0% in category
Category Avg Performance
57
-14 below avg
Category Avg LCP
1.9s
Faster than avg
Performance
Accessibility
SEO
Core Web Vitals
1.5s
Largest Contentful Paint
0.050
Cumulative Layout Shift
161ms
Interaction to Next Paint
Additional Metrics
Store Audit
Actionable insights compared to 4419 Fashion & Clothing stores
#3 in Fashion & Clothing
Top 0% of stores
94% below average
52 products vs 819 avg
Faster than 100% of Fashion & Clothing stores
PageSpeed score: 43/100
Category Benchmarks
Compared to 4419 stores in Fashion & Clothing
94% below average
avg
91% below average
avg
51% below average
avg
91% below average
avg
Theme & Design
Tech Stack
Platform
shopify
Reviews Platform
judge.me
Payment / Finance
Business Profile
Store maturity and operational indicators
Stable
NaN+ year
Since Invalid Date
Top 10% largest catalog
Top 0% by catalog size
low
Basic content (20 pages)
Tech Stack Maturity
Advanced stack
Business Sophistication
Developing
Store Timeline & History
Feb 2026
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About Cossac
Cossac is a fashion & clothing ecommerce store built on shopify and operating in ES. The store currently offers 52 products organized across 8 collections, making it comparable in size for the fashion & clothing category.
Theme and Design
Cossac uses the Dawn theme from the Shopify Theme Store. This theme choice is used by 11% of fashion & clothing stores.
Performance Analysis
Based on Google PageSpeed Insights, Cossac achieves a performance score of 43/100 on mobile devices. This score indicates significant opportunities for performance optimization, which could improve conversions and search rankings. The store also scores 94/100 for accessibility and 100/100 for SEO optimization.
Tech Stack
Beyond the core Shopify platform, Cossac uses judge.me for customer reviews and offers Payoneer Capital Advance, PayPal, Klarna, Affirm for payment flexibility.
Competitive Positioning
Within the Fashion & Clothing category, Cossac ranks #3 out of 4419 stores we track. This places them in the top 0% of fashion & clothing stores by product catalog size.
Last scanned
Feb 23, 2026
