Time Travel is described as 'Browse through billion of web pages archived from 1996 from several services : Internet Archive Waybackmachine, Archive-It, British Library, archive.today, GitHub and many more!'. There are nine alternatives to Time Travel, not only websites but also apps for a variety of platforms, including Self-Hosted solutions, SaaS, Firefox and Google Chrome. The best alternative is Wayback Machine, which is free. Other great sites and apps similar to Time Travel are Archive.is (Free), Archive.st (Free), TechRewind (Free) and Archive-It (Free).
Free online service for freezing web pages. Save, share and prove what is on the web at a specific point of time. You have to register a free account and to log in every month otherwise your frozen pages won't last more than 3 days.
Captures screenshots, downloads source code, and monitors DNS records helping you keep track of changes on your websites without needing to restore from a backup. Think of it like the Wayback Machine on steroids.