Comprehensive guide to corporate website design and web front-end optimization
The Importance of Web Front-end Optimization
In today’s digital age, the performance of a company’s website is crucial. Optimizing the web front-end is of great significance. On the one hand, it can improve the user experience. According to statistics, every 1-second reduction in page load time can increase user satisfaction by about 16%. By optimizing page loading speed, responsive design, etc., users can access website content more quickly and have a good browsing experience on different devices. On the other hand, front-end optimization helps improve search engine rankings. Search engines tend to recommend websites with fast loading speed and clear structure, which can bring more traffic and potential customers to enterprises.
II. Optimizing the page loading of the scheme
(1) CSS should be placed at the top of the page to allow the browser to obtain style information as early as possible, while JS should be placed at the bottom to avoid blocking DOM parsing. (2) Localizing remote resources referenced by plug-ins can avoid slow page loading. (3) Merging resource files to reduce the number of HTTP requests and limit the frequency of sending some functions to the backend. (4) Enable GZIP compression of text resources to improve page loading speed.
III. Optimizing the page content of the scheme
(1) Reducing the number of HTTP requests can speed up page loading, such as merging CSS and JS files. (2) Reduce page jumps and redirects to avoid extending loading time and reducing search engine trust. (3) Loading and preloading resources as needed can reduce loading time and bandwidth costs. (4) Reduce the number of DOM and iframe, reduce page complexity and improve loading speed.
IV. CSS Optimization of Optimization Scheme
(1) By placing CSS style sheets at the top, page loading speed can be accelerated, preventing a white screen of waiting, which is crucial for web pages with a lot of content. (2) Avoid CSS expressions and filters, some browsers do not support them and there is performance loss. IE9 does not support the AlphaImageLoad filter. (3) Use link instead of @import. Linking CSS files can load in parallel, without blocking document rendering and has powerful functionality. (4) Compressing and merging CSS files can reduce HTTP requests and file size, improve loading speed, and can be used with tools such as fisp and webpack to improve website performance.
V. Image optimization of optimization scheme
(1) Optimizing the size of images can reduce the negative impact on page loading speed. You can compress images online and choose the appropriate format. Over 70% of user browsers support WebP. (2) Use CSS Sprite to reduce HTTP requests and improve loading speed. You can do this yourself with Photoshop or during UI design, and use CSS positioning when using it. (3) Not scaling images in HTML is an important principle for front-end performance optimization. You should use images of appropriate size and set the width and height to avoid browser repainting.
VI. Summary and Outlook
Web front-end optimization is very important for enterprise website design, and various solutions can be used to improve page loading speed. Image optimization, CSS and JavaScript optimization
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