RE: Google search goggle logo keeps on change so how to verify that log changed or not?
There are two ways to solve this problem.
1. Do a bit by bit image comparison of the logo image with your base line. If it fails it is a different image.
2. You can check the name of the image as shown below.
The logo part of the HTML on google.com is
<div title=”Google” align=”left” id=”hplogo” style=’background: url(“/images/srpr/logo11w.png”) no-repeat 0% 0% / 269px 95px; width: 269px; height: 95px;’ onload=”window.lol&&lol()”><div nowrap=”” style=”left: 218px; top: 70px; color: rgb(119, 119, 119); font-size: 16px; font-weight: bold; position: relative;”>India</div></div>
you can see that the style property has [ style=’background: url(“/images/srpr/logo11w.png”) ] has the path of a .png file. Just extract the url of the image and compare it with your baseline URL.