No new blocks for 41 minutes now...
so no confirmations of transactions on casino's
is this normal?
The most recent block was 13 minutes ago.
The block prior to that was 43 minutes earlier.
Yes. Variation in the time between blocks is very normal.
The difficulty is adjusted every 2016 blocks to try to keep the
AVERAGE time between blocks as close to 10 minutes as possible. However, for any given small sample of blocks it is entirely possible to have multiple blocks within seconds of each other, or an hour or two between two blocks.