Batch URL Analysis
Analyze multiple websites at once and compare their performance side by side
Many websites block iframe analysis due to CORS restrictions
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Enter URLs to Analyze
One URL per line, up to 10 websites
0 URLs
🧪 BETA FEATURE - CORS Limitations
This batch analysis feature performs real iframe-based performance testing. However, most external websites block iframe embedding using X-Frame-Options or CORS security headers, which will cause analysis to fail for those sites. This feature works best for analyzing websites you own and control. For reliable testing of external sites, use the bookmarklet instead, which bypasses these restrictions.