Sisterjane
sisterjane.com
Sister Jane is an elevated London fashion label specializing in romantic and nostalgic women's and men's clothing, including dresses, tops, bottoms, jackets, and accessories. The brand also offers a curated pre-loved collection and operates a repair studio.
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
584
Collections
147
Pages
53
Blog Posts
146
CommerceRank Score
Overall store health assessment based on 5 key factors
60/100
Top Recommendations
- Critical: PageSpeed below 50 is hurting conversions
- PageSpeed is 10 points below Fashion & Clothing category average (57)
- Add a reviews platform to build customer trust
PageSpeed Performance Analysis
Mobile performance from Google PageSpeed • 22 Feb 2026
Overall Ranking
#12416 / 16375
Faster than 24% of stores
Fashion & Clothing Ranking
#2254 / 2989
Top 75% in category
Category Avg Performance
57
-10 below avg
Category Avg LCP
1.9s
Slower than avg
Performance
Accessibility
SEO
Core Web Vitals
3.2s
Largest Contentful Paint
0.000
Cumulative Layout Shift
92ms
Interaction to Next Paint
Additional Metrics
2.5s
First Contentful Paint
411ms
Time to First Byte
7.9s
Speed Index
Store Audit
Actionable insights compared to 4419 Fashion & Clothing stores
#922 in Fashion & Clothing
Top 21% of stores
29% below average
584 products vs 819 avg
Slower than 75% of Fashion & Clothing stores
PageSpeed score: 47/100
Category Benchmarks
Compared to 4419 stores in Fashion & Clothing
29% below average
avg
58% above average
avg
29% above average
avg
356% above average
avg
Theme & Design
Theme Name
BespokeType
Custom / Bespoke
Tech Stack
Platform
shopify
Payment / Finance
Business Profile
Store maturity and operational indicators
Stable
NaN+ year
Since Invalid Date
Larger than 75% of category
Top 21% by catalog size
high
Strong content (146 blogs, 53 pages)
Tech Stack Maturity
Developing stack
Business Sophistication
Established
Store Timeline & History
Feb 2026
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About Sisterjane
Sisterjane is a fashion & clothing ecommerce store built on shopify and operating in GB. The store currently offers 584 products organized across 147 collections, making it comparable in size for the fashion & clothing category.
Theme and Design
Sisterjane 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, Sisterjane 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 77/100 for accessibility and 85/100 for SEO optimization.
Tech Stack
Beyond the core Shopify platform, Sisterjane has not implemented a third-party review platform and offers PayPal for payment flexibility.
Competitive Positioning
Within the Fashion & Clothing category, Sisterjane ranks #922 out of 4419 stores we track. This places them in the top 21% of fashion & clothing stores by product catalog size.
Last scanned
Feb 19, 2026
