The Hidden Triggers Behind Your Website’s Traffic Plunge—and How to Beat Them Fast
A great example of how interests change is Rhythm of Food, which uses Google Trends data to show how search terms ebb and flow over time.

If you find that your traffic loss is seasonal, there’s not much you need to change, as it’s just part of the natural flow of the way people find content online. However, you can prepare to capitalize on your next busy season or focus on diversifying your content and offerings to drive more consistent, year-round traffic.
Besides seasonal changes, a sudden drop in website traffic can also be the result of general shifts in the world. For example, at the onset of the COVID pandemic, interest in travel-related topics dropped sharply, as reflected in Google Trends data.