Performance report for labo.docker.algoritmik.net

Your site contains images without alt tags. You should add alt tags to these images for better accessibility. Learn how to use images in your site.

Your page has images that are not properly sized. Consider serving appropriately-sized images to save cellular data and improve load time. You can save 900.54 KB. Learn how to use images in your site.

Your page has images that are not lazy loaded. Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. Learn how to use images in your site.

Your page has resources that are not using HTTP/2. HTTP/2 is a major revision of the HTTP network protocol used by the World Wide Web. You can contact your hosting provider or server administrator to enable HTTP/2.

Your page has elements with low contrast. This can make it difficult for people to read your content.

The length of your page's meta title is below the ideal range of 50-60 characters. You should detail your title a bit more.

Your sites javascript files takes 23.95 seconds to execute. This can cause slow page load times. You can consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this.

Your page has third-party resources that blocks load time 10700ms. Consider reducing the impact of third-party code and third-party code size.

Your page maximum DOM depth is 16. Consider reducing the number of nested DOM elements to improve performance.

Your site is missing some OG tags. Learn more.

Your page has unmified javascript files. Consider minifying them to reduce payload sizes and script parse time. You can save 3.22 KB.

Your page has unoptimized images. Consider optimizing them or convert images to formats like .webp to reduce payload sizes and page load time. You can save 2507.67 KB.

Your page has static assets that does not have long cache policy. Consider setting a longer cache policy for static assets to reduce network load and page peformance. You can configure your server to return the Cache-Control HTTP response header like below:

"Cache-Control: max-age=31536000"

This code tells to browser cache resource for 1 years. You will save 40309.45 KB. Be sure this static assets are not changing frequently, otherwise you may face with cache related issues, to prevent this, you can use versioning for your static assets.

Your page has large network payloads. Consider reducing the size of resources that are transferred over the network to improve page load times. You can save 41633.49 KB.