Distributed database that is used to maintain a continuously growing list of records, called blocks
Popular bitcoin wallet service blockchain.info doesn't plan to support the alternative Bitcoin Cash protocol in the near future, which is expected to be launched on August 1.
— Blockchain (@blockchain) July 30, 2017
Is the first decentralized peer-to-peer payment network that is powered by its users with no central authority or middlemen
At the same time, if BCC will develop into the actual chain and the market, users will be able to use the key phrase to export their funds and use them in that chain, regardless of whether Blockchain decides whether to support it or not.
In the event of two separate blockchains after August 1, 2017 we will support the longest chain. As of today, we have no immediate plans to fully support the Bitcoin Cash fork within our main product. But, if BCC develops into an actual chain and market, you will be able to use your recovery phrase to export your funds and use them on that chain, regardless of whether or not Blockchain chooses to support it.