Visit the Wayback Machine website. In the box that says "Enter a URL..." type in the exact URL of the missing page. To do that, copy and paste the URL from your address bar.
Below I'm searching for a website that leads to a "Not found" message:
Hit the Enter button on your keyboard and you'll see a calendar appear:
You can navigate to a specific year. The days on the calendar that are highlighted with a bubble are days when a backup of the website was captured. A larger bubble means the website was captured multiple times. In other words, the large green bubble on January 29th in the image above means that four snapshots of the website were taken, whereas only one snapshot was taken on February 24th.
Click the day you would like (oftentimes that would be the most recent capture). If more than one snapshot was taken that day, you can pick the last one by seeing what time it was taken. The format is hour : minute : seconds. A link labeled 12:31:01, for example, was captured at 12:31.
We're now viewing an archived version of the website. If you would like a link to this version, copy and paste the link in your address bar which will be prefaced by https://web.archive.org