Some of a website's pages have source code that includes
img src="url_to_image" but the img is not requested by the page. Is there a way to crawl the website to programatically determine if images are in code but not requested?
I'm reasonably familiar with Screaming Frog and Python+Selenium but I don't know if I can make either do that job.
The images are in lazy load code that in turn is inside a div set to display:none. So am I correct in thinking that in those circumstances the browser will not request the images?