then there are high chances of blunders
Suggestions about delay(Bronstein)

There's delay on variants server, and you can play chess on variants server.
That's the closest you can get.

Wow -- who knew?
Daly games play with delay. For example, you have one day to make moves. I'd love to see daily games use a version of increment as well. This would allow for players taking a weekend off but requiring a certain average rate of moves, keeping games on a reasonable schedule.
I knew chess-com had a certain abandon time but I didn't realize it supported this for live games.
When you play a games of chess with increment , there ́s actually TWO increment : the bonus (used on chess.com and international chess tournament ) AND the delay (example : having ten second to play a move). I think that would be a great idea to add it on chess.com !