Google uses signals that help determine content that demonstrates expertise.[1] This is more important for topics that could impact a reader’s happiness, health, or wealth. Google calls these Your Money or Your Life (YMYL) topics.
Here’s what Google says about expertise for YMYL and non-YMYL topics:
- Non-YMYL topics. “Everyday expertise” is enough. If the writer has the type and amount of life experience to make them an expert on the topic, you’re good.
- YMYL topics. Formal expertise is important, but “everyday expertise” is enough for some topics. For example, someone with cancer can answer “what is it like to have cancer” better than a doctor.
Use the flowchart below to decide if and how to cover a topic.

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