How to Get a Website's Last Update Date

The Internet Archive contains copies of websites dating back to the 1990s. Some of the information on these archived sites is still relevant. Other data, such as news facts and technology breakthroughs, may be obsolete. If you need to determine how old a website's information is, you can use JavaScript. This Web programming language allows you to get a website's last update date in seconds.

• 1

  Visit a website.

• 2

  Type the following into your browser's address bar:

  javascript:alert(document.lastModified)

• 3

  Press "Enter." A pop-up message box will display the last update date.