What is the reason why the website opens slowly? How to make the website open faster?
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The speed at which a website opens is directly related to the visitor's user experience. The speed at which a website is loaded is related to many factors, such as the quality of the server, the network bandwidth, the complexity of the page code, etc. If you are limited by funds, then optimizing the web page code to speed up the website opening speed is a very effective method. What is the reason why the website opens slowly? How to make the website open faster? Let’s learn more about it with Dongguan SEO Feng Chao! What is the reason why the website opens slowly? How to make the website open faster? 1: Compress or minify Javascript code and css code. Regardless of the type of website, when a user clicks on the website for the first time, the website's Javascript and CSS codes will be loaded. If these codes are redundant, it will inevitably slow down the website's opening speed. If there is such a problem, the code needs to be compressed or streamlined. In terms of compression, there are a large number of third-party tools such as the CSS\JS compression tool of Webmaster Home that are available for free trial. The compressed code can generally be reduced by 40% to 65%. In terms of simplicity, if one style controller can be used, then don't use two. The idea is to satisfy the page layout of the website while minimizing the amount of code. 2. Reduce HTTP requests. Statistics show that traffic servers spend 80% of their time loading scripts, CSS style sheets, images and other website elements, and only about 20% of their time loading other main text content of the website. The problem is that each website will have HTTP requests, and there can only be 2 HTTP requests at the same time. In this case, if there are more than 2 HTTP requests at the same time, it will inevitably slow down the website opening speed. As shown in the figure: After finding out the impact of HTTP requests on web page speed, the next solution is to reduce the number of HTTP requests. 3: Set up server-side cache for Javascript code, CSS code, and images. Everyone has discovered that if a user visits your website for the first time, the next time the user visits your site, the speed will be faster. What is the reason for this? The reason is browser cache. Most servers or spaces have already set up the cache function by default. All the webmaster or SEOer has to do is set the corresponding file type and expiration time in the background. Here, the recommendation is: if it is a Windows host, set the cache time of images, CSS and Javascript files to 30 days; if it is an Apache Web server, use the mod_cache module to enable the cache function. 4: Optimize the referenced images in CSS. Suppose a page requires a large number of surrounding images, such as the following icons, if these images are called separately, the number of requests will increase, which means: if there are too many cssimages, the number of requests will increase, and the website opening speed will slow down. If we merge all the images needed for the page into one image, the number of image requests will become 1, and the page speed will be relatively faster. How to put the required pictures on a picture and call them at the corresponding position? The method lies in coordinate positioning. That is: get the image path through CSS coordinates, and reference the corresponding coordinates in the tag. If you understand the front-end, then these are not big problems. If you don’t understand CSS, then CSS image merger generator tools (just search on Baidu) can directly provide the corresponding content: merge CSS images and generate corresponding codes at the same time. 5: Jump code location, jump code loading order. When a website is clicked, the page code is loaded from top to bottom. For this reason, we can adjust the script code in the <head> section accordingly. It is relatively simple. We look at the code between <head> and </head>, mainly the Javascript script code, and adjust the unimportant and non-essential ones to the bottom of the page. As long as the page can be displayed normally, the rest of the statistical code can be loaded later. For example, on this site, buttons such as share are placed at the bottom. 6: Compress the image. Statistics show that image loading time is the biggest factor affecting website speed. If you can solve the image loading speed problem, you will solve most of the page speed problem. Assuming that the website has a large number of pictures in jpg and other formats, it is necessary to compress them as much as possible without affecting the visual effect to reduce the size of the pictures themselves. Similar to compressing Javascript files, there are a large number of online tools that provide corresponding compression services, and a large number of image editing software such as Meitu XiuXiu have compression functions. 7: Enable gzip compression function on the server. Gzip compression is a more efficient data compression format. If gzip compression is turned on, the compression rate can generally reach about 75%, and the effect is very obvious. Most servers such as virtual hosts, VPS, etc. have this function enabled by default. If it is not enabled and you do not know how to set it up, it is recommended that you contact the hosting provider directly and let them resolve the issue. |
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