Structured data helps search engines understand the page
Structured data is code that describes what a page is about in a standardized format. It does not guarantee rankings, but it can make pages easier for search engines to understand and sometimes eligible for richer search features.
Google explains structured data in its SEO starter guide.
Useful schema for local service sites
Common types include:
This site uses service schema on service pages, FAQ schema for service FAQs, breadcrumb schema for page hierarchy, and local business schema globally.
What schema cannot fix
Schema cannot fix:
It supports good content. It does not replace it.
What to put in Service schema
For a service page, include:
That should match what the visible page says. Do not mark up claims that are not visible or true.
Bottom line
Structured data is technical clarity. Use it to support real pages with useful content, local context, and strong internal links.