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Martha Stewart says Goop founder Gwyneth Paltrow should shut up and stick to acting reports The New York Post.

“She just needs to be quiet. She’s a movie star. If she were confident in her acting, she wouldn’t be trying to be Martha Stewart,” the domestic doyenne snipped to Net-a-Porter’s Porter magazine.

And, after Blake Lively started her own lifestyle site, Preserve, Stewart admits the “Gossip Girl” star had come to her for advice — but sidesteps making a judgment and leaves it to her senior vice president Kevin Sharkey, who says of Lively, “I don’t get the sense she’s credible. She’s enthusiastic, but she’s not credible.”

Stewart also scoffed at Sheryl Sandberg’s best-selling book “Lean In,” saying women should spend less energy fighting barriers in the workplace and be more entrepreneurial: “Too much time is spent . . . Isn’t ‘leaning in’ spending a lot of time? . . . I think being entrepreneurial is something women should strive for, rather than working up the corporate ladder.”