Fast load times are critical to the success of your site. Slow websites may alienate readers and damage search engine rankings. Fortunately, there are several ways to speed up your site, such as using lossy compression on images. In this post, we will learn more about loss compression and how it can improve site performance. It also introduces how to apply loss compression to images, as well as the advantages and disadvantages of this technology. Let’s go! What is loss compression? Compression reduces the file size. Compressed images can effectively reduce files. There are many types of compression, one of which is called \
Loss compression can significantly reduce file size. However, this process may degrade the image quality. Because compression will delete some pixels that make up the image. It can be seen that the compressed photos are not as good as the original photos. Depending on the compression level used, the image quality may be degraded. Let’s look at a few examples. This is an original image with a file size of 2 Mb. The following is the same image after 50% compression. The file size is reduced to 806kb. But there is no significant difference in quality. Finally, the image is compressed to 10% and the file size is 329kb.
As you can see, the decline in quality is now obvious. This is because a large amount of data is deleted from the image. As mentioned earlier, the compressed image helps speed up the site. To illustrate this, we used lighthouse to run page speed tests at various image sizes. Lighthouse tests are separated by color, and green numbers are suitable for loading performance. When using the original image, the page performance score is: Then compress the image to 50% and rerun the speed test. As you can see, the performance has improved. Finally, we tested the same page with photos compressed to 10%.
As you can see, Peggy has got full marks now. This test shows that small image files can greatly improve site performance. Compressing too many graphics can bring amazing results to the site speed, but low quality will have a negative impact on the brand. Therefore, unless absolutely necessary, it is best not to reduce the image by more than 50%. Why use loss compression? The more data on the website, the longer it takes to load the page. Files such as plug-ins, images, audio and video may burden the loading time of the site.
Loss compression helps speed up your site, especially when there is a large amount of image content. This compression type can be used for various file formats, including JPEG (Joint Photographic Experts Group) and GIF (Graphics Interchange Format). Loss compression can also be applied to video and audio files. As mentioned earlier, loss compression works by deleting data from the image, so the size and quality will be reduced. Compared with lossless compression, this method can reduce the image file without affecting the quality.
However, loss compression may be more effective than lossless compression. This is because more data can be deleted from the image. This will ensure some space for storage and speed up the site. If you have websites with more images (such as online stores or large blogs), you can consider using loss compression. Using this compression method, you can optimize product images, thumbnails, banner ads, and other JPEG files on your website. As a result, pages load faster, reducing failure rates and allowing users to make more transformations. Loss compression can also control the quality and size of the image to a certain extent. In fact, you can use many image optimization tools
You can select the compression level. This can help improve the performance of the site by taking a balanced approach without compromising the graphics quality.
WordPress applies loss compression to images and automatically compresses JPEG files by up to 82%. Therefore, every time the image is uploaded to the website, it will go through the loss compression process. functions. You can edit the PHP file to adjust this automatic compression level. However, this method can be tricky and does not compress photos that have been uploaded to the site. In addition, there are simpler (more efficient) ways to optimize images. Let’s look at a few options! 1. Use a picture editor and a picture editing software that likes to compress pictures, which can easily compress pictures. You can apply quality levels to images using popular tools such as Adobe Photoshop and GIMP.
Male or computer operating system built-in picture editor. If you are a Windows user, open the image in Microsoft photos. Then click the three points in the upper right corner and choose zoom from the drop-down menu. Male select custom measurement standard definition in the next pop-up window. You can then use the slider to set the image quality. When you are ready, click Save resized copy. It is recommended that you save this compressed image as a separate file. Compression cannot be recovered due to loss. If you overwrite the original drawing, you cannot undo the changes.
2. Another way to compress images using the word press plug-in is to use the image optimization plug-in. This method can automatically optimize all photos uploaded by the plug-in to the site, so as to save time. Imageify is one of the powerful optimization plug-ins. After installing and activating the plug-in on the website, a message will be displayed asking you to create a free account and enter the API key. When finished, you can go to Settings > imagine to set compression preferences. As you can see, there are three options available.
If male normal is selected, the plug-in will perform lossless compression on the image. This method may not speed up the site. On the other hand, the type of attack will lead to loss compression. But there is no significant difference in quality. Finally, ultra is the most powerful loss compression level. This setting may greatly change the image quality. For best compression results, it is recommended to select aggressive. Imageify automatically optimizes the source size of all images uploaded to WordPress. As you scroll down, an option is displayed that allows you to select other image sizes to compress, such as thumbnails.
When you are ready, click save changes. All images uploaded to the site will now be automatically compressed to the required level. Just as we have seen the benefits of loss compression so far, loss compression can improve site performance and page load time. Therefore, the improvement of performance will bring a better user experience. It can also help improve the site’s search engine optimization (SEO). Even if disk space and bandwidth are limited, loss compression is useful. Reduce the amount of data stored on the website. Fortunately, compressing graphics does not require much effort. Just install the free plug-in to automatically reduce the size of all uploaded images. Therefore, loss compression can quickly and easily improve the performance of the whole website. Disadvantages of loss compression unfortunately, using loss compression has several disadvantages. First, the compressed image cannot be restored to its original state. Source files are not ignored when optimizing drawings
