14 LINDKE v. FREED Opinion of the Court function might make the plaintiff ’s argument a slam dunk. Take a mayor who makes the following announcement exclusively on his Facebook page: “Pursuant to Municipal Ordinance 22.1, I am temporarily suspending enforcement of alternate-side parking rules.” The post’s express invocation of state authority, its immediate legal effect, and the fact that the order is not available elsewhere make clear that the mayor is purporting to discharge an official duty. If, by contrast, the mayor merely repeats or shares otherwise available information—for example, by linking to the parking announcement on the city’s webpage—it is far less likely that he is purporting to exercise the power of his office. Instead, it is much more likely that he is engaging in private speech “relate[d] to his public employment” or “concern[ing] information learned during that employment.” Lane, 573 U. S., at 238. Hard-to-classify cases require awareness that an official does not necessarily purport to exercise his authority simply by posting about a matter within it. He might post job-related information for any number of personal reasons, from a desire to raise public awareness to promoting his prospects for reelection. Moreover, many public officials possess a broad portfolio of governmental authority that includes routine interaction with the public, and it may not be easy to discern a boundary between their public and private lives. Yet these officials too have the right to speak about public affairs in their personal capacities. See, e.g., id., at 235–236. Lest any official lose that right, it is crucial for the plaintiff to show that the official is purporting to exercise state authority in specific posts. And when there is doubt, additional factors might cast light—for example, an official who uses government staff to make a post will be hard pressed to deny that he was conducting government business. One last point: The nature of the technology matters to the state-action analysis. Freed performed two actions to