ViewBlock explorer allows you to look at the status of your transaction, current status of the Zilliqa network, contract source code etc.
For example, this is the ViewBlock transaction link for a getHello() transition transaction. ViewBlock supports both Zilliqa testnet and mainnet.
ViewBlock API - ViewBlock's API is a valuable resource for some additional methods that a developer might require for his application, for example : retrieving all transactions sent by an address.
ViewBlock Zilliqa Stats - ViewBlock's statistics provide statistical information about Zilliqa network such as difficulty over time, number of blocks over time and address growth over time.