OutDept

SEO vs Google Ads vs Facebook Ads: Which One Actually Brings Customers?

October 13, 2026·4 min read

Ads stop the day you stop paying. SEO takes months. Social ads create demand but rarely close it. How each channel really works, and how to split a small budget.

Every small business owner hears the same pitch three times a week: 'You need SEO.' 'You need Google Ads.' 'You need to boost your posts on Facebook.' They're all partly right, which is exactly why so much money gets wasted. Each channel does a different job, and spending on the wrong one at the wrong time leads to the conclusion that 'marketing doesn't work' when it was simply the wrong tool.

Google Ads: you pay to appear when people are already searching

Google Ads puts you at the top of results for searches like 'villa cleaning Phuket' or 'accountant Bangkok' the moment you switch it on. You pay per click, and the people clicking are actively looking for what you sell. That intent is why search ads often convert well.

The catch: traffic stops the day the budget stops, popular keywords can be expensive, and sending clicks to a slow or vague homepage burns money fast. Google Ads works best when it points to a focused landing page with one clear action.

Facebook and Instagram ads: you interrupt people who weren't looking

Meta's ads reach people by interest, location and behaviour while they scroll. They're good at creating demand: opening a new restaurant, promoting an event, showing a product people didn't know existed. In Thailand, where social media and messaging apps are a huge part of daily life, they can reach a lot of people at a low cost.

But most people who see the ad weren't planning to buy anything. Expect more reach and less intent, and plan the next step: a LINE or Messenger conversation, a retargeting ad, or an offer that turns interest into a booking.

SEO: slow to start, cheap to keep

SEO means earning a place in Google's free results with useful pages, a fast and technically sound website, and signals of trust such as reviews and links. Google itself says it usually takes four months to a year before SEO work shows its benefit.

Once a page ranks, it keeps bringing visitors without paying for each click. A strong service page or article can generate enquiries for years. That compounding effect is why SEO is the cheapest channel in the long run, and the most frustrating one in the first few months.

Side by side: what each channel is good at

  • Speed: Google Ads and Facebook Ads start working within days. SEO takes months.
  • Intent: Google Ads and SEO catch people who are already searching. Facebook Ads reach people who weren't.
  • Cost over time: ads cost the same every month. SEO costs most at the start and keeps working afterwards.
  • Best use: Google Ads for urgent leads, Facebook Ads for awareness and offers, SEO for steady long-term demand.

The mistake that wastes the most money

It isn't choosing the wrong channel. It's sending paid traffic to a website that can't convert it. If your site is slow, unclear on mobile or hides the contact button, every channel underperforms, and ads simply let you pay for the problem faster. Fix the destination first: one clear offer per page, a visible LINE, WhatsApp or phone button, and fast loading.

How to split a small marketing budget

For most small businesses, a sensible starting point looks like this:

  • Month 1: fix the website basics and set up conversion tracking, so you can see which channel actually brings enquiries.
  • Months 1 to 3: run a small Google Ads campaign on your most profitable, high-intent keywords for immediate leads.
  • From month 1: complete your Google Business Profile and publish one or two genuinely useful pages a month for SEO.
  • When you have something to promote: use Facebook and Instagram ads for launches, seasonal offers and retargeting.
  • Every month: move budget toward whatever produces the cheapest real enquiries, not the most clicks.

The right mix depends on your market, your margins and how fast you need results. If you'd like a plan built around your numbers rather than around a channel someone is trying to sell, talk to OutDept. We set up tracking, landing pages and SEO so you can see what every baht is actually doing.

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