We had a game of monopoly at the weekend and someone had lost the dice, so I used the dice at https://random.bentasker.co.uk
However, I got doubles a lot
(which was handy as I kept landing on "Go to jail").
The probability of rolling doubles when rolling two dice is 0.16 so it may be nothing, but it felt oddly frequent (it also only seemed to be me which lent a feeling that they might be coming in some kind of cycle).
I thought it might be interesting to dig into as it's a while since I've touched that codebase.
Random output is generated by a Hash-chains based RNG I created in LUA (originally, but no longer, reading in seeds from my ChaCha20 RNG - https://www.bentasker.co.uk/blog/software-development/689-writing-a-chacha20-based-csprng