Instagram is the name of a photo-sharing app, and a user known only as "Jon" has used it to post a photo of Core77's homepage circa 1997. Jon, where on Earth did you dig up this fossil? As you can see, the browser is Netscape (those of you under 25, never mind, you don't need to know what that was) and back then it was just Core, no 77.
Nice graphics, huh? And I think that entire page was about 4k to load.