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HTML Optimization
HTML (HyperText Markup Language) is a markup language often used to structure content and create web pages.
Effective HTML optimisation can significantly improve the performance of a website, l'user experienceas well as search engine positioning such as Google.
In this article, we explore the 10 key points for successful HTML optimisation.
The use of semantic tags allows search engine spiders to better understand the structure and content of your page. Examples include:
It is important to organise your HTML code so that it is easier to read and analyse, both for developers and for search engine spiders. Well-structured code is also easier to maintain and update.
Reducing the size of your HTML code will reduce page load times and improve the user experience. Here are a few tips:
Images often account for most of the total weight of a web page. To optimise images, it is advisable to :
Sprites CSS are a technique that involves gathering several images into a single file, then using CSS properties to display only the desired portion. This reduces the number of HTTP requests and improves page load times.
CSS and JavaScript can also be optimised to improve the performance of your website. Here are a few tips:
Setting up a cache for static files (images, styles, scripts) speeds up their loading on subsequent visits. You can configure your server to define caching times and use tools such as mod_expires (Apache) or ngx_http_headers_module (Nginx).
A CDN is a network of servers spread around the world that store copies of your static files and distribute them to users according to their geographical location. This reduces latency and improves the loading speed pages.
Asynchronous and deferred loading allow certain resources (such as JavaScript scripts) to be loaded without blocking the display of the page's remaining content. You can add the attribute for asynchronous loading, or the attribute for delayed loading.
The last essential point of successful HTML optimisation is metadata. These elements of code provide important information about your content to search engines:
To sum up, effective HTML optimisation is based on a number of key elements: organisation and minification of code, image management, optimisation of CSS and JavaScript files, caching, use of CDNs, asynchronous or deferred loading and exploitation of metadata. By applying these best practices, you will improve the performance of your website and deliver an optimal user experience.
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