How do I get a Web site the last date of update

Internet Archive contains copies of sites dating back to the 1990s.

Some of the information on these archived sites is still valid. Other data such as news and technological advances, facts may be outdated. If you need to determine how old is the information of a Web site, you can use JavaScript. The Web programming language allows for last date of update a Web site in a few seconds. Difficulty: easy

Instructions

1. 1

   Visit a Web site.

2

In your browser address bar, type:



JavaScript: Alert (document.lastModified)

3

Press "enter".

A pop-up message box shows the last date of update.