37 Audits
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Large Resource Checker

Performance Checker

Detects oversized resources affecting page performance

GeneralPerformanceSEOResilience
100 credits
Per check
~30 seconds
Average runtime
Active
Status

How it works

This checker identifies resources (images, scripts, stylesheets) that exceed size thresholds and may impact page loading performance. The checker uses Playwright to load the page and extract resource URLs, checks content length of all resources (images, scripts, CSS, videos), identifies resources exceeding 500KB threshold, and provides detailed reporting of large resources.

What this checker validates

This checker identifies resources (images, scripts, stylesheets) that exceed size thresholds and may impact page loading performance. It uses Playwright to load the page and extract resource URLs, checks content length of all resources (images, scripts, CSS, videos), identifies resources exceeding 500KB threshold, and provides detailed reporting of large resources.

Output Documentation

StatusConditionTest Logic
SUCCESSAll resources under thresholdNo resources larger than 500KB found
FAILLarge resources detectedFound resources exceeding 500KB size limit

Risks and Considerations

Poor Performance: Large resources slow down page loading, leading to increased bounce rates and poor user experience. SEO Penalties: Page speed is a ranking factor, and slow sites may rank lower in search results. Increased Costs: Large resources consume more bandwidth and hosting resources.

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