Ads buy attention today. SEO buys an asset that compounds. Most businesses need both, in a specific order.
## Choose ads first when
You need leads this month, you are testing a new offer, or your site cannot yet convert organic traffic well.
## Choose SEO first when
Your market is local and the map pack is winnable, your average order value is high enough to justify a 6–9 month horizon, or your competitors have thin sites you can outrank.
## The rule of thumb
If your organic conversion rate is below 1.5%, fix the site before increasing ad spend. Paying for traffic that does not convert is the most expensive mistake in marketing.