Yeah, topical authority is 100% a real thing — and it’s becoming more important lately, especially with how Google’s leaning into EEAT and AI-driven summaries.
Basically, topical authority means Google sees your site as a legit expert in a specific niche. If you're running a digital agency focused on sales, then yeah, publishing content around different angles of sales, digital strategies, conversion tactics, sales funnels, lead gen, etc., helps big time.
It's not just about stuffing keywords though. It’s more like — are you covering the topic from all angles? Think of it like building a library. One blog post about “sales strategies” won’t cut it. But 20+ solid posts covering beginner tips, advanced tactics, tools, case studies, mistakes to avoid, niche breakdowns, and even client Q&As — that’s where you start building that authority.
Backlinks still matter, no doubt. But if you’ve only got links and no content to back it up, you're not seen as a "real" source. Google wants both — authority from links and depth from content.
So yep, writing blog posts on your topic does help. Just make sure they’re useful, tight, and not generic fluff.
Hope that clears it up.