Polkadot (DOT) tested its support level on Friday after experiencing a week-long decline. Despite the bearish trend, DOT managed to rebound from its support level, indicating sustained buyer interest around the $4.20 price point. This price action suggests that the $4.20 level is a critical support zone for DOT, potentially serving as a foundation for future upward movements. Market participants will be closely monitoring this level to gauge the strength of buyer interest and the potential for a trend reversal.