Here’s a cool little website. It’s called Is It WordPress? and the concept is simple. If you’re browsing the Internet, and you want to find out if a site has been made with WordPress, simply copy the url, paste it into the form on Is It WordPress? and submit it. Bang! You’ll find out if the website is using WordPress and which company is hosting the site.
Of course I had to find out if Is It WordPress? is using WordPress, so I pasted the url https://www.isitwp.com/ into the form and, not surprisingly, found out that Is It WordPress? is indeed using WordPress!