A blockchain explorer can be considered as a scanner of all transactions executed on a network.
Each blockchain network has its own explorer, so you will need to choose the appropriate explorer for each situation. To find an explorer, simply search on your search engine "(currency name) explorer".
Through an explorer, you will have the ability to analyze:
Wallets
Transactions
Coins
Smart contracts
Holders of a respective currency
Generally, each explorer has a similar interface. For this guide, we have chosen to use an explorer for Ethereum called EtherScan.
GUIDE: - Go to EtherScan
Enter your address / the name of an ERC20 coin / Txhash of a transaction (identification number) in the top right corner.
Example by entering an address:
In the top left corner, you will find your Ethereum balance and its current value.
In the top left corner (below Eth), you will find the balance of ERC20 tokens under "Token Balance."
Below, you can find all the transactions of the address, both incoming and outgoing.
By clicking on "ERC20 token Txns," you can view all transactions related to the tokens.
If you have any NFTs, you will also find the NFT category.
By clicking on Token Balance, you can see all the tokens held in your address.
HOW TO FIND DATA TO ADD A TOKEN MANUALLY?
Let's say you want to add the new TYPE token.
Click on the coin you want to add to MyEtherWallet (as indicated in the image) (in this case "TYPE").
These are the data you will need to add a token to Metamask:
Coin contract address (Contract)
Coin symbol (Near Balance)
Decimals (Decimals)
Once you have found this data, you'll need to input them into the corresponding section of Metamask.
Refer to the Metamask guide to know where to add them.