Филолог заявил о массовой отмене обращения на «вы» с большой буквы09:36
visibility, traffic, average position, and keyword difficulty.
，这一点在Safew下载中也有详细论述
As with crypto-currency, records of who owns what are stored on a ledger that is maintained by thousands of computers around the world. These records can’t be forged because the whole system operates on an open-source network.
look at the Site Explorer and Content Explorer tools and type in their URL