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Resource Hints validation

Optimising the use of preload, prefetch, preconnect

How it works

Advantages

Faster page loading
Reduce load times by preloading resources.
Analyse current settings
Evaluate the effectiveness of existing Resource Hints.
Recommendations for improvement
Suggestions for implementing additional Resource Hints.
Improving site performance
Optimise resource loading for better UX and SEO.

Tools

Speed scanner
Resource Hints validation
INP Debugger
Test back / forward cache
Memory leaks

FAQ

Resource Hints are mechanisms that allow a browser to preload or establish connections to resources, thus speeding up page loads.

The main types include preload, prefetch, preconnect, and dns-prefetch, each of which has its own characteristics and uses.

Use the hints from the report: 1. Remove duplicate preloads 2. Add preconnect for third-party domains 3. Fix incorrect resource paths.

The report shows: 1. Critical errors (e.g. incorrect MIME types in preload) 2. Recommendations for adding new hints 3. Performance impact assessment.

The service scans your HTML code, looks for directives like '<link rel="preload"'> or '<link rel="preconnect"'>, checks if they are correct, and provides optimization recommendations.
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Optimising Site Resource Loading - Using Resource Hints | Milten