Is BitMart a Tier 1 exchange?

Excuse me, I'm curious about the status of BitMart within the cryptocurrency exchange landscape. Could you clarify whether BitMart is considered a Tier 1 exchange? As someone interested in investing and trading, it's important for me to understand the credibility and reliability of the platforms I'm using. Are there any specific factors that determine whether an exchange falls into the Tier 1 category, and how does BitMart compare to other leading exchanges in terms of trading volume, security measures, and user experience?