The Wayback Machine is a free tool by the Internet Archive that stores snapshots of websites over time. It's been crawling and archiving the web since 1996. As of 2025, it holds over 900 billion web pages. You can type any URL and see what it looked like years or even decades ago.
How the Wayback Machine works
The Internet Archive runs crawlers that visit websites and save copies of their HTML and images. These snapshots are timestamped and stored in the Wayback Machine's CDX index. Not every page gets crawled at the same frequency. Popular sites might have daily snapshots. Smaller sites might only show up a few times per year.
The CDX API lets you query the archive programmatically. You can find out how many snapshots exist for a domain and when the first and last captures happened. This data is public and free to access, though rate limits apply.
Why the Wayback Machine matters for expired domains
The Wayback Machine is the single most important due diligence tool for expired domains. How old is this domain really? The first snapshot date gives you a reliable minimum age estimate. What content was on the site? You can verify it was a legitimate business, not a spam farm. And what language was it in? A .com domain might have been a German website, which matters if you want it for English SEO.
CatchDoms fetches Wayback data for every domain it tracks. You'll see the snapshot count, first and last archive dates, plus the detected language. Hover over a domain name to preview the last Wayback screenshot and check the site's history before you bid.