Image optimization is reducing the file size of website images for faster loading meanwhile you keep their quality unchanged (means quality will be reduced as a percentage but the image must be clearly visible to the end user) In Google's words they always consider about user experience so they give high value on faster loading websites, so if your website is loading faster it gives user friendly experience meanwhile your web pages will rank well.
To optimize your image, you need focus on few things Alt tag Title tag Image file name Share your image to social media , classified and so on .
Image optimization is the term which used to explain the procedure of image cutting and resolution decrease. Generally this procedure is done to make file styles smaller sized so image will load quicker.
Image optimization means reducing the size of the image without loosing the quality so that it loads faster. Also adding: Alt tag Tittle tag Image name
I've noticed that Google takes into account the name of the blog post in which an image is used, as well as the content of the post. Sometimes images rank for keywords not mentioned in the alt text, or the image's title, or anywhere else in the image itself. Also, the more times the image has been embedded and linked to, the better. As far as image size and load speed are concerned, I don't think it's much of an issue. Anyway, you can always use a google rank checker that also tracks rankings in image search to see where the page with your image shows up on Google.
Image optimization is the process by which one can reduce its size without decaying its quality & visual clarity. With this process you can reduce page size which will help to load it faster.
Google cannot read image, so we can put information about image in Alt tag. It can be helpful to think of optimizing images like optimizing a tiny webpage within your page. Things like URL structure, anchor text and descriptive tagging are factors for optimizing images for search engines, just like regular webpages.
Image optimization is necessary for website speed performance if your websites have a good speed then it will easy to help crawl search engines.
You need to optimize your images so your website will load fast, but be careful not losing the quality. Also you need to use alt tag, title tag, a relevant image file name so search engines will know how to classify your image. You can also promote your website by sharing your image on Social networks.
Image optimization is using the most compressed (smallest file size) yet visually acceptable image in the proper file format for the specific role of the image.
and if you consider optimizing images.. best tool i found for lossles image optimization is bytesbites.com.. it has best optimization i have tested... even better than smush.it, and google page speed reports that all my images are totaly optimized..it kinda matters when you have a lot of images on portal..
Google crawlers unable for crawling the image with out alt tag. Alt tag is very strong point in SEO because without it you can't get benefit of images. if you want to rank your image in SERP then you must use of Alt tag. There are no need codding knowledge for use alt tag, it is quite easy (<img src="image url" alt="image name" title="title" /> ). Alt tags help in your SERP as well as increase the traffic so don't forget use alt tags in your post.
Yes it plays a major role in performance of a website. If the image size is large then it will takes too large time for loading. So we should make sure of image optimization while design a website
Image optimization means to use image in such size, name, title that is understandable for search engine and easy to load and give you benefits by making it visible in search engine result..
Sometimes when it is difficult to rank for some keywords... you could actually get the ranking through the images on that particular page. The important thing to do is, Put your keyword in the Alt Text, A phrase along with the keyword in it will look more natural. Have proper meta tags for the page.