SEO vs. paid ads (SEM) — what is the difference?

One takes time and builds a lasting foundation; the other brings an instant result and stops the moment the spending does. They complement each other rather than replace one another.

SEO

Search engine optimisation is preparing your site to appear in Google's organic results without paying per click. It takes time — months, not days — but the result keeps working without ongoing spend.

Paid advertising

Paid ads on Facebook or Google deliver instant visibility for a budget. The result is fast, but it stops entirely the moment spending does.

SEO is building a house. Paid ads are renting an apartment. There is a place for both.