how to achieve transaction info of all the blocks
That's because you're pasting a block hash into a field that expects a transaction hash. 

It looks like btc.com doesn't support listing all transactions for a given block, it will only give a tx count: https://btc.com/api-doc#Block.

Blockchain.info does, however at the api endpoint:

https://blockchain.info/rawblock/$block_hash

So, you can copy the hash of any block from the list of the first link in your answer to the $block_hash field in https://blockchain.info/rawblock/$block_hash.