Our great sponsors
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fontaine
Discontinued Automatic font fallback based on font metrics [Moved to: https://github.com/unjs/fontaine]
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SurveyJS
Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
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Fonts are one of the biggest pain points in the context of performance optimization. I have decided to not use any CDN like Google Fonts but instead, I'm serving them myself. Also, I have used a cool package called Fontaine which reduces CLS by using local font fallbacks with crafted font metrics.
This may sound a bit general but we can't forget about well-tought code. If we are using a lot of external dependencies, we can check if there aren't many lighter alternatives. Example? Some people are still using moment.js for date formatting. Why not use a lightweight 2kb alternative instead? Writing clean, organized and maintainable code won't give us a huge score boost but we are trying to save every byte of data, right? 😉
This may sound a bit general but we can't forget about well-tought code. If we are using a lot of external dependencies, we can check if there aren't many lighter alternatives. Example? Some people are still using moment.js for date formatting. Why not use a lightweight 2kb alternative instead? Writing clean, organized and maintainable code won't give us a huge score boost but we are trying to save every byte of data, right? 😉
Lately, there has been a rise in popularity of frameworks like Astro, which introduce the "Islands architecture." As a result, many tech "influencers" are now flexing with their Lighthouse scores and screaming, "You don't need JS! Look at my perfect 100% score!"