Before launching an advertising campaign, many teams begin by selecting keywords and evaluating bids. This is logical: without understanding the market and pricing, it's difficult to predict effectiveness in advance. But there's an often-overlooked step: checking Google Trends to see how interest in your topic is changing. This tool shows the relative popularity of search queries and helps make more informed decisions about budget, timing, and settings, ensuring ads are targeted at times when users are actually searching for a solution. 1) Understand seasonality and demand spikes Google Trends lets you see when interest for a keyword rises or falls. This is useful not only for obvious seasonal categories, but also for situations when demand "revives" due to events, school cycles, holidays, product updates, or changes in audience habits. If you're planning a launch in advance or focusing on seasonal products or services, this becomes a critical advantage: you can launch a campaign during peak demand, prepare a landing page for it, and allocate your budget so it's focused on the peak period rather than the peak. And when interest declines, you can promptly adjust bids, reallocate spend, or refocus your ads. To make things simpler, think of it this way: it's better to verify your demand forecast against search trends than to "guess" based on gut feeling. Even small changes in the interest graph can have a significant impact on cost per click and traffic quality. 2) Choose more precise keywords and wording Even similar queries can vary in popularity and, consequently, in how often users actually search for that specific phrase. Comparing multiple variants in Google Trends helps you choose those that are most frequently searched for, meaning they offer a better chance of attracting relevant traffic. This approach also reduces the likelihood of an ad being shown for a low-demand query that doesn't drive the desired action. What this looks like in practice: You consider multiple formats for the same intent (for example, a more general and a more specific one). If the specific query demonstrates consistent interest or a growing trend, you can prioritize it in your ad structure. This makes your ads more precise, and users quickly realize they're being offered exactly what they're looking for. This helps improve relevance and reduce the rate of clicks that don't result in results. 3) Assess the dynamics in specific regions The tool shows changes in interest by geography. If your service is local, this is especially useful: you can determine where demand is highest, meaning your advertising will be most effective. Based on the results, you can more accurately select regions, adjust the reach radius, and develop separate campaigns or ad groups for different cities/regions. This also influences audience tone and expectations: in some places, queries are phrased differently, in others, interest in certain solutions is higher, and in others, users are more likely to switch to similar alternatives. Accuracy Bonus: Look at "Related Queries" and Topics In addition to the main query, it's helpful to look at related queries and related topics. They provide clues about what questions users are asking, what scenarios lie behind similar phrases, and what problems are "masked" by different queries. Sometimes the same need is expressed differently: people may search using a more general term or with a more specific term that reflects a specific situation or intent. Therefore, it can be beneficial to use several more specific keywords rather than a single, universal keyword. This way, you'll hit a more pressing demand and increase the chances of converting to the target action. Finally, Google Trends is useful for hypothesis testing. Before launching large-scale campaigns, it's helpful to test your assumptions against data. For example, you can assess how interest in a new product or service is changing in the near future and determine whether it makes sense to invest in promotion now. If interest is growing or stable, this supports the decision to launch. If the trend is weak or unstable, you can reconsider the timing, campaign structure, or select a different set of queries to avoid wasting budget on something that hasn't yet reached demand. The bottom line is simple: checking Google Trends before launching an ad is a quick and inexpensive way to improve the accuracy of your planning. You'll better understand seasonality, choose stronger keywords, account for regional differences, and reduce the risk of wasting your budget on impressions where demand is actually low. As a result, you'll make more confident decisions and your advertising efforts will be more effective.