Fittrack.com Here

: Use the name without an article when referring to the website address directly or using it as a proper noun. Example: "Go to fittrack.com to see your stats."

: Use "a" or "an" only if you are describing it as one of many similar things (rare for a specific domain). Example: "Is fittrack.com a health tracking site?" fittrack.com

: Use "the" when you are referring to the website as a specific entity or object. : Use the name without an article when