For SEO of any website, Image optimization play an important role. As images occupy a lot of space on your website, so it is essential ways to optimize images which increase better user experience and functionality and boost website ranks and traffic. A well-optimized image contains its visual quality with high-performance website.
In Some Picture where pixels are not clear and pictures have a bad-looking quality. These picture become blur when they compressed when there are lots of other ways to optimize images and still keep the visual aspect
There are lot of important tips that will help you not only optimize the images for SEO with speed up your website and help you in your SEO ranking.
NAME YOUR IMAGES PROPERLY
It could be more convenient to keep by default image filename. But in terms of SEO that is a terrible idea. It is essential to name your images with qualitative keywords to better rank your image on search engines. Crawlers do not only index your text but are also looking for keywords within your image filenames. English is the most common language used for search engines.
FILL OUT YOUR ALT TAGS
Alt tag is an alternative text that adds an extra value to your SEO. It actually attributes extra keywords to your images and can increase your ranking.
As your image name, fill your alt tag in in simple English text. If alt tag helps your SEO, do not stuff it with over-optimized keywords, it will be penalized.
REDUCE YOUR IMAGES SIZE
Average page load time is about 3 seconds on a laptop or desktop and about 5 seconds on mobile devices. Knowing that Google records the page speed of account to rank your website.
For Example - Amazon has facing this problem as they are losing 1.6 billion a year if their pages slow down by 1 second, which may result in revenue of business.
Loading your images depend on how large they are. If you have Photoshop, we can adjust the image for web resolution without cropping the image quality.
USE THE RIGHT FORMAT FOR THE RIGHT IMAGE
There are two common file types used for images on the Internet, JPEG and PNG. JPEG has become the file standard for the Internet. They offer a high rate of compression while keeping a good image quality. It provides low file size with a good image quality. PNG is preferred for smaller image with less details and colour like logo or small icons. It has the advantage to offer images with a very low file size.
USE UNIQUE IMAGES
Duplicate content is badly penalized by Google. And it works the same for images! If you are using stock images that have been seen multiple times on websites, Google will not take the time to rank them. Duplicate images will not be ranked or have a significant impact on your ranking. We should use unique pictures which show signal of quality.
BUILD YOUR IMAGE SITEMAP
Google offers new possibilities with site map by including support for images. We are now able to add a caption, geo location, title and license for each image. We can careful while use our thumbnail images.
Cookies are a small pieces of data sent from a website and kept in a user’s web browser while he is visiting the website. Cookies are often used to store session state, etc. Images also contain cookies and this is useless since it slows down the page load and lower the user experience. Images should be hosted on free domain website like Photobucket, Flickr, 500px etc. This is pretty accurate for mobile website where load time is higher.