As an experienced website operations expert, I know the importance of website performance for user experience and search engine ranking.English CMS (EnglishCMS) provides a solid foundation for website operators with its high efficiency, lightweight design, and SEO-friendly features.However, even the most efficient systems cannot do without refined operational strategies to continuously optimize.Today, let's explore a crucial aspect of website performance optimization - how to implement image lazy loading (Lazy Load) in the home page Banner list.
Home page banner, as the 'face' of the website, usually carries the brand image and core promotion information, often composed of high-resolution, large-sized images.These images consume a large amount of bandwidth and computational resources when the page loads, directly affecting the page loading speed when the user first visits.While image lazy loading is an effective solution to this pain point.
Understanding Image Lazy Loading: Why Is It Crucial?
In simple terms, lazy loading of images is an optimization strategy, with the core idea of 'loading on demand'.This means that, when the page is initially loaded, it will not load all images immediately, but only load the images in the visible area of the user's current screen (i.e., the first screen).When the user scrolls down the page and the image enters the visible area, the corresponding image resource starts to load.
Home Page Banner: Ideal Application Scenarios for Lazy Loading
Home page banner area, especially those lists that use carousels or multi-image displays, usually contain multiple images.These images are often large in size and the file volume is not small either.If loaded all at once, it would undoubtedly impose a heavy burden on website performance.Even if some banners may not be immediately visible to users when they first visit, their loading still consumes valuable resources.Therefore, implementing lazy loading for the homepage Banner list is an excellent entry point for improving website performance.
Implementing Home Page Banner Image Lazy Loading in Anqi CMS
The template system of AnQi CMS is flexible and easy to customize, and we can implement lazy loading of images by making simple modifications at the template level. We will mainly take advantage of the native support of modern browsers.loading="lazy"Property, or combinedata-srcProperty and a small amount of JavaScript code to achieve the purpose.
1. Locate and modify the template file
Firstly, you need to log in to the Anqi CMS backend, find your current theme template file. The homepage Banner list is usually located under the theme root directory,index/index.htmlfile, or aincludeEnter the local template file of the home page, for examplepartial/header.htmlorpartial/banner.html.
Open the directory under your themeconfig.jsonfile, confirmtemplate_typeField, this will help you understand the organization pattern of the template (adaptive, code adaptation, PC+mobile independent). According todesign-director.mdthe instructions, you can find the corresponding template file path.
In these files, you will find using{% bannerList banners %}tags to cyclically output Banner image blocks. A typical template code for outputting a Banner may look like this:
{% bannerList banners %}
{% for item in banners %}
<a href="{{item.Link}}" target="_blank">
<img src="{{item.Logo}}" alt="{{item.Alt}}" />
<h5>{{item.Title}}</h5>
</a>
{% endfor %}
{% endbannerList %}
Our goal is