TimeTravelPortal.com was a popular site focused on exploring the hard science of time travel with in-depth resources, expert interviews, and analysis of the John Titor story.

TimeTravelPortal.com was a website run by MadIce and Jorune, and was a popular destination for individuals interested in the science behind time travel. The site focused on exploring the hard science aspect of time travel, with discussions ranging from the physics of time travel to the practicalities of building a time machine. The site featured in-depth resources, including detailed breakdowns of various time travel claims and theories, as well as interviews with experts in the field of physics and time travel. The site was particularly known for its thorough analysis of the John Titor story, a controversial online persona who claimed to be a time traveler from the year 2036. Through its focus on scientific rigor and critical analysis, TimeTravelPortal.com provided a unique perspective on the topic of time travel, making it an important resource for enthusiasts and skeptics alike.