Free proxy service called TheOldNet brings back the beginning of the Internet by allowing you to specify a connection port between 1996 and 2012, representing the year you would like to display all web pages. This causes the proxy server to return archived copies of any site you visit from Archive.org for the specified year and the current month. The OldNet is a fun service that allows you to get lost for hours as you see how websites looked in the past. While using this service, we recommend using it in incognito mode so cookies for existing domains are not sent with requests to a website through the proxy.
Source: https://www.bleepingcomputer.com/news/software/browse-the-web-like-its-the-90s-with-this-free-service/