A comprehensive SEO strategy includes optimizing your website's structure, content, and technical aspects, as well as implementing off-page strategies like link building.

Understanding their approach to keyword research will give you insights into their ability to target the right keywords for your business.

Ask about the metrics they use to measure performance and how they report progress to clients. Look for agencies that provide regular reporting and insights into key performance indicators.

If you have a local business, it's important to ensure the agency has expertise in local SEO techniques to improve your visibility in local search results.

SEO is a constantly evolving field, so it's crucial that the agency stays informed about industry updates and adapts their strategies accordingly.

Hearing from past or current clients about their experiences with the agency can give you valuable insights into their professionalism, communication, and results.

Understand the agency's pricing models, whether it's project-based, retainer-based, or performance-based, and clarify any contract terms or commitments.