DevelopmentResources
Identifying font subsetting opportunities
The Web Font Analyzer can help you speed up font loading.
DevelopmentResources
Choosing between gzip, Brotli and zStandard compression
Which compression method is right for your content?
DevelopmentSamples
Discovering third-party performance risks
How to assess if a third-party script needs further review.
DevelopmentTrends
AI bots and robots.txt
How websites use robots.txt to set AI crawling rules.
DevelopmentSamples
Resource age and its impact on cacheability
The caching mistake slowing millions of websites.