The new websites of The Times and Sunday Times went live Tuesday for a free trial period ahead of the adoption of an all-or-nothing paywall. The sites will be free to view to those who register for around a month, after which all content except the homepages will go behind a paywall, rendering it invisible to search engines. This paywall big bang is far more ambitious than existing paywalls at titles such as the Financial Times and Wall Street Journal which allow limited free access and let casual browsers to view articles via search engines like Google. In another radical departure, the sites will only allow subscribers to comment under their real names. Those wishing to comment anonymously will have to make a case to editorial staff for doing so. For the Sunday Times it will be the first time the title has had a standalone website. Around 35 additional staff have been taken on to produce thesundaytimes.co.uk, which is more visual and magazine-like than thetimes.co.uk – that site more closely resembles the print edition. This week’s launches will mark the first step in News Corporation proprietor Rupert Murdoch’s bid to charge for content across all his newspaper titles. The Sun and News of the World are set to follow later this year.