Animated Knots by Grog[1] and 3D Knots[2] are oft-cited places to learn knots on the internet, but OP's is such a nice throwback. Don't miss the "requested entries" page with 28 more knots![3]

[1]: https://www.animatedknots.com/

[2]: https://knots3d.com/

[3]: https://knots.neocities.org/requested