Shopify vs BigCommerce

Head-to-head SEO performance comparison based on real data

vs

Based on 4,569 pages across 10 websites

Overall Winner
Shopify
Wins 6 of 10 dimensions (4 tied)
Dimension Shopify BigCommerce
Overall SEO Score
Average SEO score across all pages
64.3/100 63.7/100
Core Web Vitals (LCP)
Largest Contentful Paint — lower is faster
3.42s 8.94s
Core Web Vitals (CLS)
Cumulative Layout Shift — lower means less visual jank
0.00 0.07
Content Readability
AI-assessed readability score
75.7/100 70.3/100
Alt Text Compliance
Percentage of images with alt text
100.0% 100.0%
Structured Data Adoption
Percentage of pages with structured data
78.2% 17.9%
Title-Content Consistency
How well page titles match content
0.0/100 0.0/100
Internal Link Density
Average incoming internal links per page
96 49
Broken Link Rate
Average on-page errors per page — lower is better
N/A N/A
Page Speed
Average page load time — lower is faster
0.83s 1.74s
Average Content Length
Average word count across all pages
678 words 313 words

Visual Comparison

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