Instagram yesterday began to be inaccessible in mainland China, for unknown reasons.

Media people, including The New York Times Hong Kong correspondent, reported that the Instagram has been unable to visit China. Since yesterday afternoon, krypton people have been unable to obtain new information from the Instagram, whether through the WiFi network or the three major carriers of the cellular network, so the message should be true.

Before yesterday, Instagram was a rare mobile app that could be accessed freely in mainland China from the mainstream social networks abroad. But in July, the Facebook-owned social app has started to get out of the country's main Android app Market, and it's unclear whether it's market competition or policy reasons. In the three months since then, Instagram's visit has not been compromised, and Apple's App Store still offers the app's downloads today.

It is not yet known whether the future of Instagram will be as long as Twitter or Facebook, or as a temporary suspension of services like line. But this is good news for domestic photo-sharing startups. We must always look on the positive side of the past ...