We're building our own site and were told to build a semantic core—what exactly is this?

In regional search strategy, the semantic core is the backbone of a website—in broader SEO circles, this is simply known as keyword clustering. The logic is straightforward: you build your navigation around how buyers actually search in the real world, not around the internal jargon you use around the office. Skip this step now, and six months down the line you'll find yourself deleting pages and rebuilding the entire site architecture from scratch.

Don't get bogged down in the weeds and waste weeks staring at spreadsheets with hundreds of keywords. Beginners often gather massive lists freeze up in front of Excel, and the site never actually launches. Just pick your top 5 categories, pinpoint the 15–20 most critical commercial queries under each, and get the site live. You can always expand the rest later.

What if we just dump all 100 of these keywords side by side in tiny font at the bottom of the page—would search engines index us faster, or does that do more harm than good?

Absolutely do not resort to keyword stuffing; search engines will catch on immediately and penalize your page. You need to weave the terms from your semantic cluster naturally into fluent sentences, using synonyms throughout your product descriptions and spec tables. Modern search algorithms prioritize topical relevance and semantic context over raw keyword density.

We started with a 120-word core last year. In the first 3 months, every single order came from just 14 commercial terms on that list; the informational searches brought in traffic, but didn't earn us a single ruble. When picking your first 100 words, put heavy focus on queries explicitly containing words like "wholesale," "delivery," and "price."

open excel put your main products in side-by-side columns and paste search suggestions underneath. color-code the similar ones, map them to a single page and you're done, don't overthink it.

Building material buyers almost always search for specs: density thickness fire ratings etc. When gathering your semantic core type your product into the search bar followed by numbers and units; you'll instantly see which exact dimensions contractors and tradesmen are looking for.

Your semantic core is your site's skeleton; build a page around words real customers never use, and you'll never see organic traffic on it.

Saved.

Let me share my experience. btw solutions that work at a small scale collapse when you grow; I learned this late.

Thats all, sorry if I went on too long.

I can't fully agree with this. When making decisions, write down the worst-case scenario too, not just the best.

This is my opinion I'm not claiming it's absolute truth.

Absolutely. If I were to add anything: Processes without records never improve, because you don't know what to fix.

Of course, it varies if your situation is different.

I completely agree. If rankings stay the same but clicks drop, the issue isn't your page, but the search result appearance.

People defend habits, not processes. Resistance comes from there. That's all, sorry if I went on too long.

This is exactly what we experienced. like when making decisions write down the worst-case scenario too, not just the best.

If you post the result here, it will help others too.

I think it's hard to be that definitive about what is a semantic core. A page with low traffic might be reaching the right people. Look at where sales come from.

Of course, it varies if your situation is different.

I'd appreciate it if you shared the outcome.

I think differently. Everyone rushing into what is a semantic core gets stuck at the same point.

A competitor's ranking might come from years of accumulation not just their content. I'm also curious if anyone does it differently.

i didn't know that.