It will be very useful for us to know when the website is last updated,that is whether new posts are posted ,content of the page is updated .We can find webpage recently updated date,time with a simple trick.

1. Just open any  website in the Firefox and paste below JavaScript code in the address bar by replacing website URL

javascript:alert(document.lastModified)

an press enter to to know last  updated date and time of website.

This will give you a quick view of when the page was last updated. It’s especially helpful if you want to see when the content or posts on a page were last refreshed.