Why Image Size is Crucial
Nothing slows down a website more than huge, unoptimized images straight from the camera or smartphone. Although Sitejet already does a lot of the work for you, correct media preparation provides the decisive edge in Core Web Vitals.
1. The Right Format (WebP is King)
Whenever possible, avoid heavy PNG files unless you need transparency. Use the modern WebP format for photos. It offers up to 80% smaller file sizes than JPEG with the same quality.
2. Adjust Dimensions
A Full HD screen has a width of 1920 pixels. There is no point in uploading an image 6000 pixels wide. Scale your images before uploading to the maximum width they will actually occupy on the website.
3. Using Sitejet Image Editing
Sitejet offers an integrated editor. Once you have clicked on an image, you can crop it and apply filters. The best part: Sitejet automatically generates different sizes of the image for mobile devices (Responsive Images). This way, a smartphone user doesn't download the large background image used for the desktop version.
4. Alt Texts for SEO
Don't forget to give every image an "Alt Text" (alternative text). Briefly describe what can be seen in the image. This not only helps visually impaired users but also tells Google what your page is about, improving your position in Image Search.
