The campaign is intended not just to stamp out dissent but to ensure that all media "serves the direction of socialism".
The continuing crackdown targets not only explicit depictions of sex and violence, but even rap music, crude cartoons, dirty jokes, celebrity gossip and tattoos.
Sina Weibo has failed to comply, Beijing's Cyberspace Administration said yesterday on its official WeChat social media account, berating the site for letting users post "content of wrong public opinion orientation, obscenity, low taste and ethnic discrimination".
In another case announced on Friday, China's securities watchdog announced it had punished a blogger on WeChat with a 200,000 yuan (USD 31,000) fine for posting market-moving "misinformation" about meetings between corporations and regulators.
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China has some of the world's tightest controls over web content, protected by what is called "The Great Firewall". Restrictions on free speech have increased since President Xi Jinping assumed power in 2012.
A controversial cybersecurity law, which took effect last June, has given authorities even more leeway to regulate a wide variety of information.
In punishment for Weibo's failure to toe that line, regulators have demanded a week-long shutdown of the site's offending features, including one that allows users to pay to ask celebrities questions, as well as a function to search trending topics.
It was far from the first time the social media giant, which is owned by internet behemoth Sina, has been called on the carpet.
The government has frequently expressed its displeasure with the platform's content.
Disclaimer: No Business Standard Journalist was involved in creation of this content