This week, the price of Polkadot (DOT) has experienced a significant fall and hit a three-week low.Although there is still hope for a rebound, bears have regained dominance in the market.The main target level for a sell-off is $4, and further drop below this level would indicate a more bearish condition.Key resistance levels for DOT are $8, $9.67, and $11.65, while key support levels are $6, $5.55, and $4.7.