This tool checks when the best time to post is on the subreddit of your choice. It does so by grabbing the top 500 posts of all time in that sub, checking when and at what time they were posted, and then tallying it. The idea being that, part of the reason the "top posts" were at the top in the first place is due to when they were posted, and while there are limitations to this idea it should give a good indication as to when to post to get the most interaction with that Subs community.
This is a URL Shortener. Input a long URL, it gets stored in the database, a random string is then generated and added to the end of the portfolio site URL. When entering that URL it will direct you to the portfolio site first, find the associated site, then redirect.