Glassmorphism illustration of a glowing video play button radiating toward abstract audience figures, representing YouTube advertising reach

YouTube Ads: User Behaviour, Content Trends, and Why Your Business Should Advertise on YouTube

Youtube AdsJuly 20, 2026
By Antonio Fernandez

YouTube advertising means running ads through the Google Ads system so your brand appears in front of viewers on YouTube: before a video starts, mid-video, on the home feed, in search results, and in Shorts. The short answer to why Thai businesses should care goes like this. People spend a lot of time watching YouTube every day, they use YouTube to research products before buying, and Google's ad system lets you target audiences with a precision that traditional media cannot match. This article walks through user behaviour, the content trends gaining ground right now, and the reasons to start running YouTube ads seriously.

YouTube User Behaviour: Long, Daily, and Intentional Viewing

YouTube is one of the most visited websites in the world, and a video platform that Thai viewers of almost every age open regularly. What separates it from other social platforms is how people watch. YouTube viewers do not skim a feed and drop off after a few seconds. They pick videos they care about and watch for extended stretches, from ten-minute reviews to hour-long podcasts.

The screen people watch on has changed too. YouTube is no longer a mobile-only habit. Plenty of viewers now watch on smart TVs in the living room, the way they once watched broadcast television. Others leave it running for music or podcasts while working or driving, turning YouTube into a TV, a radio, and a classroom in a single app. For brands, this means your video ad can appear on the big screen in a customer's home, a space that used to require expensive TV airtime. Businesses that want wider video visibility in the Thai market can extend their reach further through the Thai Video Network.

YouTube Is the World's Second-Largest Search Engine

One point marketers keep coming back to is that YouTube is widely considered the second-largest search engine in the world, behind only Google, the parent company of the platform itself. You can see the behaviour in everyday life. When people want to learn how to do something, watch a product review, or compare options before buying, many type their query straight into YouTube, because they want to see the real thing and hear from real users rather than read text.

For advertisers this is a major opportunity, because these searches carry strong purchase intent. Someone searching for air purifier reviews or how to choose car insurance is right in the middle of a buying decision. An ad shown at that moment works much like an ad on the Google search results page. And since YouTube runs on the same system as the Google Ads service, search data, interests, and website browsing behaviour can all feed straight into the targeting of your video ads.

The content picture on YouTube currently has a fairly clear direction, and brands should know it before planning ads.

  • Shorts, vertical short video: growing fast and now the space people open to fill spare moments throughout the day. Ads in Shorts reach large audiences in a short time.
  • Podcasts and long-form talk shows: plenty of viewers put on hour-long interviews and analysis, contrary to the belief that audiences only watch short clips.
  • Product reviews and unboxings: still a consistently popular category, especially tech, beauty, and household products, with a direct effect on purchase decisions.
  • Vlogs and lifestyle content: everyday life, food, travel, and work, where viewers feel as close to creators as they would to a friend.
  • Educational content: finance, health, languages, and career skills are categories Thai viewers watch to the end and follow long term.

These trends tell brands two things. First, audiences are open to both short and long video depending on the rhythm of their day. Second, the content people choose tends to map to specific interests, which is exactly the data the ad system uses to target audiences more precisely for your brand. If your business already advertises on other social platforms, planning alongside a Social Ads service keeps the whole campaign moving in the same direction across channels.

Why Run YouTube Ads

1. Reach a Massive Audience at Any Hour

YouTube users range from students to retirees and are spread across the country. A single campaign can reach very broadly, while still narrowing down to specific provinces, genders, ages, or interests whenever you need to.

2. Precise Targeting Built on Google Data

The YouTube ad system draws on Google search history, YouTube queries, and website browsing behaviour to build a wide range of audiences: people shopping for products like yours, people who recently searched related terms, or people who visited your website but have not decided yet.

3. A Range of Ad Formats to Match the Goal

YouTube offers several ad formats, from skippable video where you only pay when someone actually watches, to six-second non-skippable bumpers built for recall, ads in the feed and search results, and ads inside Shorts. Each format serves a different job, and the team behind a dedicated YouTube advertising service can help pick the right mix for your budget and goals.

4. Real Measurement and Full Budget Control

Every campaign reports in detail: impressions, view-through rates, clicks, and the actions taken on your website after the ad. Budgets can move up or down daily with no long media contracts, so you can start small, test, and scale once the results are clear.

Start Your YouTube Advertising the Right Way

YouTube combines the strengths of TV, a search engine, and social media in one place. Viewers watch for a long time, watch with intent, and research purchases directly on the platform. If you want to run YouTube ads properly from day one, the Relevant Audience team can handle everything from strategy and format selection through to measurement and optimisation. See the full YouTube Ads service or get in touch with the team for advice.

Antonio Fernandez

Antonio Fernandez

Founder and CEO of Relevant Audience. With over 15 years of experience in digital marketing strategy, he leads teams across southeast Asia in delivering exceptional results for clients through performance-focused digital solutions.

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