--- title: Best ITNEXT posts — December 2020 | daily.dev description: The most upvoted ITNEXT posts from December 2020, curated by the daily.dev community. canonical: https://daily.dev/sources/itnext/best-of/2020/12 twitter:card: summary_large_image twitter:site: @dailydotdev og:url: https://daily.dev/sources/itnext/best-of/2020/12 og:type: website og:site_name: daily.dev og:title: Best ITNEXT posts — December 2020 | daily.dev og:description: The most upvoted ITNEXT posts from December 2020, curated by the daily.dev community. og:image: https://media.daily.dev/image/upload/s--VAY5ToZt--/f_auto/v1724209435/public/daily.dev%20-%20open%20graph --- # Best of ITNEXT — December 2020 1. 1 [](https://daily.dev/posts/we-rendered-a-million-web-pages-to-find-out-what-makes-the-web-slow-aojalovoi "We rendered a million web pages to find out what makes the web slow") Article ITNEXT · 6y We rendered a million web pages to find out what makes the web slow We rendered a million web pages to find out what makes the web slow. To our knowledge, this produces the first dataset that connects performance, errors, and library use on the web. We published the dataset to Kaggle, so you can crunch the numbers yourself. 44 2 2. 2 [](https://daily.dev/posts/how-to-increase-css-in-js-performance-by-175x-96ntq6thl "How to increase CSS-in-JS performance by 175x") Article ITNEXT · 6y How to increase CSS-in-JS performance by 175x How to increase CSS-in-JS performance by 175x. How to make your existing styling more dynamic by making your static styling more static. Using HOC wrappers instead of litters for your application with HOCs. Using CSS Variables instead of namespaced classes. 21 2 3. 3 [](https://daily.dev/posts/build-an-app-that-books-vacations-to-the-moon-with-graphql-lambda-dynamodb-serverless-framework--r8urgqcql "Build An App That Books Vacations To The Moon with GraphQL, Lambda, DynamoDB, Serverless Framework…") Article ITNEXT · 6y Build An App That Books Vacations To The Moon with GraphQL, Lambda, DynamoDB, Serverless Framework… Learn how to make a bleeding edge fullstack application with the following toys: AWS Lambda, DynamoDB, Serverless Framework, Vue, React and Tailwind CSS. This project was hugely inspired by the folks over at Anomaly Innovations who created the Serverless Stack. The wait is over! Get it for Free! 17 6 [See all ITNEXT archives](/sources/itnext/best-of) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@graph":[{"@type":"CollectionPage","@id":"https://daily.dev/sources/itnext/best-of/2020/12#page","url":"https://daily.dev/sources/itnext/best-of/2020/12","name":"Best ITNEXT Posts — December 2020","description":"The most upvoted ITNEXT posts from December 2020, curated by the daily.dev community.","isPartOf":{"@type":"WebSite","url":"https://daily.dev"}},{"@type":"ItemList","@id":"https://daily.dev/sources/itnext/best-of/2020/12#items","numberOfItems":3,"itemListElement":[{"@type":"ListItem","position":1,"url":"https://daily.dev/posts/we-rendered-a-million-web-pages-to-find-out-what-makes-the-web-slow-aojalovoi","name":"We rendered a million web pages to find out what makes the web slow"},{"@type":"ListItem","position":2,"url":"https://daily.dev/posts/how-to-increase-css-in-js-performance-by-175x-96ntq6thl","name":"How to increase CSS-in-JS performance by 175x"},{"@type":"ListItem","position":3,"url":"https://daily.dev/posts/build-an-app-that-books-vacations-to-the-moon-with-graphql-lambda-dynamodb-serverless-framework--r8urgqcql","name":"Build An App That Books Vacations To The Moon with GraphQL, Lambda, DynamoDB, Serverless Framework…"}]},{"@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Sources","item":"https://daily.dev/sources"},{"@type":"ListItem","position":3,"name":"ITNEXT","item":"https://daily.dev/sources/itnext"},{"@type":"ListItem","position":4,"name":"Best of","item":"https://daily.dev/sources/itnext/best-of"},{"@type":"ListItem","position":5,"name":"December 2020"}]}]} ```