A niche is the specific territory an account claims: not fitness, but kettlebell training for desk workers. The insistence isn't a creativity rule. Algorithms and audiences both need to file you somewhere, and specific accounts are the ones that get filed and found.
Recommendation systems work by clustering: they learn what an account is about from consistent signals, then route it to viewers who engage with that cluster. Tight niches classify cleanly and get routed; bit-of-everything accounts read as noise.
Audiences run the same logic at the follow decision: a specific promise wins because the viewer knows exactly what they're subscribing to. "Budget travel for students" converts; "my life and thoughts" doesn't, until you're famous.
The workable test is an intersection of three things.
Small niches feel limiting and rank fastest: less competition, cleaner classification, faster authority. Broadening WORKS from a base: accounts widen successfully after the niche built the audience, rarely before.
Operationally, the niche becomes your content pillars, and the pillars become the calendar. That chain is what consistency actually looks like from inside.
Probably not: if real people search it and a competitor exists, it can carry an account. Too small looks like zero search interest and zero adjacent creators.
One account, one niche works best for growth. Two real niches usually deserve two accounts; a forced blend confuses the classification both depend on.
When the niche audience is genuinely yours: strong engagement, recognisable identity. Broaden one adjacent step at a time and watch retention.
Related terms
Every definition lives in the full glossary, and the services behind the vocabulary are on the services page.