Schema markup is a small block of code that describes your page in a language search engines understand. It tells Google, Bing and AI assistants facts like "this is a business, this is its phone number, this article was published on this date."
Why structured data matters
Search engines are good at reading text, but they still guess. Schema removes the guesswork. It can make your listing eligible for rich results (like star ratings or breadcrumbs) and helps AI tools connect your website to the right business entity.
The most useful schema types
- Organization — your business name, logo, website and social profiles
- LocalBusiness — address, opening hours and service area for local businesses
- Service — the services you offer, such as website design
- Article / BlogPosting — headline, author and dates for blog posts
- BreadcrumbList — shows the page's position in your site
- Product — price and availability for online stores
How to add schema
Most schema is added as JSON-LD, a script tag in the page's head. Modern frameworks and many CMS plugins can generate it automatically. Example fields for a web design business:
"@type": "Organization",
"name": "Your Business",
"url": "https://yourdomain.com"
Common mistakes
- Marking up content that is not visible on the page
- Adding fake reviews or ratings — this can lead to penalties
- Using different business details than your Google Business Profile
- Forgetting to update dates and prices
How to test it
Use Google's Rich Results Test and the Schema Markup Validator after publishing. Fix any errors before moving on.
Summary
Schema markup is a low-effort, high-value improvement. Start with Organization and Article, keep it accurate, and test every change.