What is Image Optimization?
Image optimization is reducing the image file size without sacrificing quality so that your web page load times remain low. So you can rank images on search engines result pages.
Optimizing images means use of high-quality images in the right format, dimension, size, and resolution while keeping the smallest possible size. Image optimization can be done by resizing the images, caching, or by compressing the size.
Balance between the lowest file size and an acceptable quality
- Eliminate unnecessary image resources
- Leverage CSS3 effects where possible
- Use web fonts do not use of encoding text in image
You can reduce your image’s file sizes to help improve your website’s performance.
Large images slow down your web pages. Optimizing images is the decrease the image file size, by using a plug-in or script, which in turn speeds up the load time of the page. Lossy and lossless compressions are two methods commonly used.
Here is a look at the main benefits.
- It will improve your page loading speed (check how much it affects your speed). If your page takes too long time to load then your visitors may get tired of waiting and close your website the they will move on to some other website it may affect on Bounce rate.
- Large files slow down your website.
- Optimized images: Search engine will easily crawl and indexed.
- Creating backups will be faster.
- Smaller image file sizes use less bandwidth.
- Requires less storage space on your server (it’s totally depends on used thumbnails)
Tools and programs to optimize images:
- Adobe Photoshop
- JPEG Mini
- Resizing Images to Scale
- Very important to upload images to scale and not let CSS resize them.
- The WordPress media library creates thumbnails based on your settings
- You can use a plug-in Imsanity.
Imsanity used to set a data storage limit for all uploaded images. Imsanity workds immediately after the image will be uploaded, but before WordPress processing occurs. So WordPress works for scaled their image to a reasonable size before uploading.
Make sure you could not be upload 2 MB images to your WordPress media library
Photo editing Tool to compress images:
- Imagify Image Optimizer
- ShortPixel Image Optimizer
- EWWW Image Optimizer Cloud
- Optimus Image Optimizer
- WP Smush
- WordPress plugin will help to use compresses and optimizes images on their servers so that it will reduce the load on your website.
- Use vector images, PNGs and JPGs
- Use a content delivery networks (CDN) to serve up your images fast to visitors across the globe
- Remove unnecessary image data
- reduce the white space and recreate it by using CSS to provide the padding
- Use CSS3 effects as much as possible
- Save your images in the proper dimensions.
- Use web fonts don’t use text within images. It look good, scaled and take less space
- Use lossy compression where possible
- Experiment to find the best settings for each format
- Use GIF when you require animation
- PNG : if you require high resolutions
- JPG: general photos and screenshots
- Remove any unneeded image metadata
- Automate the process as much as possible
- Optimize your alt attributes carefully.
- Reduce the file size of your images.
- Choose the right file type.
- Optimize your thumbnails.
- Use image sitemaps.
- Beware of decorative images.
- Use caution when using content delivery networks (CDNs).
- Test your images.