Twitter (TWTR - Get Report) posted stronger-than-expected fourth quarter earnings Thursday as the micro-blogging website held user growth but said expenses would rise notably this year as it moved to protect the integrity of its platform.

Looking into 2019, Twitter said it sees first quarter revenue in the region of $715 to $775 million, essentially in-line with the Refinitiv forecast of $765 million. Twitter also said GAAP and cash operating expenses would rise by 20% from last year, to a range of $550 million to $600 million, "as we support our existing priorities of health, conversation, revenue product and sales, and platform."

Related: Twitter Is Looking Attractive From the Long Side - Buy It Here and on Strength

Twitter said the average of daily active users that the company can monetize on its platform rose 9% to 126 million, helped by an 11% gain in international users to 99 million.

"If you want to launch something new, you do it on Twitter," Cramer explained. He said that there "aren't enough" social media companies to make Twitter worthy of selling.

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