BBC News launches 'dark web' Tor mirror
The BBC has made its international news website available via the Tor network, in a bid to thwart censorship attempts.
The Tor browser is privacy-focused software used to access the dark web.
The browser can obscure who is using it and what data is being accessed, which can help people avoid government surveillance and censorship.
Countries including China, Iran and Vietnam are among those who have tried to block access to the BBC News website or programmes.
Instead of visiting bbc.co.uk/news or bbc.com/news, users of the Tor browser can visit the new bbcnewsv2vjtpsuy.onion web address. Clicking this web address will not work in a regular web browser.
The dark web copy of the BBC News website will be the international edition, as seen from outside the UK.
It will include foreign language services such as BBC Arabic, BBC Persian and BBC Russian.
But UK-only content and services such as BBC iPlayer will not be accessible, due to broadcast rights.
While the Tor browser can be used to access the regular version of the BBC News website, using the .onion site has additional benefits.
"Onion services take load off scarce exit nodes, preserve end-to-end encryption [and] the self-authenticating domain name resists spoofing," explained Prof Steven Murdoch, a cyber-security expert from University College London.
In a statement, the BBC said: "The BBC World Service's news content is now available on the Tor network to audiences who live in countries where BBC News is being blocked or restricted. This is in line with the BBC World Service mission to provide trusted news around the world."