Weeks after photos and video services had been disrupted, China has now fully blocked all of WhatsApp’s services, including text messages.

Nadim Kobeissi, an applied cryptographer at Symbolic Software, a Paris-based research firm that also monitors digital censorship in China, told Verge: “Essentially, it seems that what we initially monitored as censorship of WhatsApp’s photo, video and voice note sharing capabilities in July has now evolved to what appears to be consistent text messaging blocking and throttling across China.”

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WhatsApp is owned by Facebook, a social network that has been banned in China since 2009, and this hints of worsening ties between the company and the Asian superpower.

There is speculation that WhatsApp has been targeted because it offers secure chats between users, through its end-to-end user encryption. Other messaging services like Skype and FaceTime, which are allowed, do not offer that. Domestic Chinese apps like WeChat even provide all users’ personal data to the Chinese government.

There are a number of websites that have been blocked by the Chinese government, and you can find out it a website you like has been banned by using this Cloudwards tool.