Structured Data: Code That Describes a Page to Search Engines
Structured data is a standard format for telling search engines exactly what a page contains, from products to FAQs. Learn the formats and what they unlock.
Structured data is a standardized format, most often JSON-LD, that tells search engines exactly what a page contains so they can understand and display it.
Why Structured Data Matters
Regular text is easy for people and ambiguous for machines. Structured data hands search engines a clear label: this is a product, a review, a recipe, or a question.
With that clarity comes the chance to appear in rich results instead of a plain blue link.
The Formats
The recommended format is JSON-LD, a small script block in the page head. Microdata and RDFa embed the same meaning inside the HTML itself.
JSON-LD wins on simplicity, because it can be added and maintained without touching the visible markup.
What Structured Data Earns a Site
Valid markup can unlock rich results: review stars, product price and stock, recipe ratings, and FAQ boxes that make a result stand out.
It is not a ranking factor, but the richer presentation tends to lift click-through rates and brand trust.
Getting Started
- Pick the structured data type that matches the page content, not the type you wish it had.
- Describe only what is visible on the page, never invent facts for the markup.
- Add it as JSON-LD in the head and validate with the rich results test.
- Monitor the structured data report for warnings and fix them quickly.
The site: a store adds product structured data with price and availability to every product page.
The reading: search engines learn the price, stock, and rating before deciding how to show the result.
The result: product results display the price and stock directly in the listing.
Why it works: the page finally speaks the machine's language, and the SERP shows the answer at a glance.
Quick Tip
Validate every markup change with the rich results test before publishing; one malformed field can void the whole rich result.
Frequently Asked Questions
Structured Data, Bottom Line
Structured data is the page translating itself into a language search engines read fluently.
Describe what is really there, keep it valid, and the results start speaking back in rich detail.