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Get the web's modern capabilities on your own sites and apps with useful guidance and analysis from web.dev.
As the web advances, users' expectations grow. With web.dev's guidance, you can give your users the best experience, wherever they are.
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Explore topics
Learn more about a topic, and practice your skills with a hands-on codelab.
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- 19 resources
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Web Vitals
Essential metrics for a healthy site.
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- 32 resources
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Progressive Web Apps
Websites that took all the right vitamins.
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- 13 resources
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Accessible to all
Build a site that works for all of your users.
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- 60 resources
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Fast load times
Techniques for improving site performance.
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- 23 resources
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Network reliability
See consistent, reliable performance regardless of network quality.
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- 27 resources
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Safe and secure
Ensure your site and your users' data is secure.