Short answer: you usually need both.
Backlinks will still matter in 2026. They help with long term rankings, trust, and stable organic traffic. If you want results that last and don’t disappear when you stop paying, SEO and links are important.
Ads are great if you need fast traffic, testing, or quick sales. But once you stop spending, the traffic stops too.
Best approach for most sites:
- Use ads for quick wins and data
- Build quality content and backlinks for long term growth
If the budget is limited, focus on SEO first. If you want speed, run ads while building links in the background.