Wayback Machine

The Wayback Machine is part of archive.org, a non-profit library of millions of free books, movies, software, music, websites, etc., and has accumulated hundreds of billions of snapshots of web site pages over the last twenty-plus years.  It provides a historical look back at how things have changed over time, for example as shown below, the home page for whitehouse.gov back in 1999.  Just enter a URL and select a date when a capture occurred.  They might seem silly today, but remember that high-speed Internet service was not the norm not that long ago.

https://archive.org/web/