In addition to the size, you must take into account the weight of the image. This means that your images must also look equally good on computers, tablets and phones. The content of your site must, therefore, be responsive so that it adapts to navigation from any device. For this reason, it would not make sense to insert larger images that would be scaled to fit within the limits of the section in which you insert them.Īt the same time, you have to take into account that your site will be viewed on displays of different sizes. At the same time, however, none of your users will appreciate seeing images of excessively low quality.Īs far as the size is concerned, you have to take into consideration the fact that the images will almost never be displayed on full screen. The size of the photos you show on your site has a major impact on the loading time of your site. If you want to improve the speed of your site and therefore your ranking on search engines you have to make sure that images are loaded quickly. You also have to consider that Google likes fast sites and that on a page the content that tends to increase loading time is often due to images. This is why image optimization for SEO should not be underestimated. In reality, however, search engines take into consideration not only text but also images. When talking about optimizing a website and the best practices to put in place to improve On Page SEO we often focus on content and especially text.
The best-positioned results are those that are displayed first and receive, therefore, the greatest number of visits.Ī better ranking translates, therefore, into greater visibility for your site and potentially more earnings. Optimizing images for SEO means improving your website’s ranking on search engines. Image optimization SEO: the definitive guide – what to consider Automated optimization of title and alt text.Optimize images for SEO: image attributes.Image optimization SEO: the definitive guide – what to consider.For more advanced optimization you will have to save specific files in Photoshop, Illustrator, or Fireworks. For basic compression, you can use a simple editing program such as GIMP. To resize your images you will have to use some form of program. Save the image in the desired size to reduce the file size. If you are having to use HTML or CSS to resize your images, stop right there.
Save your images in the proper dimensions. If you have more detailed graphics then use JPG file format to save your images and reduce the quality. If you have icons, bullets, or any graphics that don’t have too many colors use a format such as GIF and save the file with lower amounts of colors. Crop your images to remove any whitespace around the image and use CSS to provide padding. Reduce the white space around images – some developers use whitespace for padding which is a big no-no. Here are the most common ways to optimize your images for the web. Optimizing images for the web can reduce your total page load size by up to 80%.įull optimization of images can be quite an art to perfect as there are such a wide variety of images you might be dealing with. In simple terms optimizing your image works by removing all the unnecessary data that is saved within the image to reduce the file size of the image based on where it is being used in your website. Resizing the image on the webpage itself using CSS is helpful but the issue is the web browser will still download the entire original file, then resize it and display it.Ĭan you imagine taking a poster size image and using it as a thumbnail? The little 20px by 20px image would take as long to load as the original poster when we could just be loading a 20px image the whole time. We also can optimize images for the web by saving them as the appropriate dimensions. For this reason, these images carry a lot more data and in return are a much large file size. Images saved in lossless format retain all the information needed to produce the original image. Lossy compression is good for web, because images use a small amount of memory, but can be sufficiently like the original image. Keep in mind that this is only visible at a very close look. Images saved in a lossy format will look slightly different than the original image when uncompressed.
There are two forms of compression that we need to understand, Lossy and Lossless. Optimizing your images for the web means saving or compiling your images in a web-friendly format depending on what the image contains. If you put these files on your website it would be very slow to load. This is because the images are made in a format that makes them easier to manipulate in different ways.
The images you create in programs like Photoshop and Illustrator look amazing but often the file sizes are very large.
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