Structured Data

Here is the honest version. A search engine reads your page as a wall of text and images. It can guess that a number is a price and that a string of words is a name, but guessing is expensive and unreliable, and at the scale Google operates, expensive and unreliable adds up fast. Structured data removes the guessing. You hand the engine a clean, machine-readable summary that says "this is a recipe, this is the cook time, this is the rating, these are the steps." That clarity is what unlocks the fancier search features and, more and more, what makes your content easy for an AI engine to quote with confidence.

I have spent twenty years watching teams treat this as optional. It is not optional anymore, and I will tell you exactly why. Google uses structured data to build rich snippets, to feed its Knowledge Graph, and to decide what it trusts. AI Overviews and chat answers lean on well-labeled content because clearly labeled facts are easier to trust and reuse than facts buried in prose. If your competitor marks up their content and you do not, you are handing them an advantage for the cost of a few lines of code. That is a bad trade and you are the one making it.

The three formats you will hear about

• JSON-LD: a self-contained block of code you drop in the head or body. Google recommends it, and it is the format you should default to in almost every case.
• Microdata: attributes sprinkled inline across your HTML tags. Older, messier, and harder to maintain because the labels are tangled into your visible markup.
• RDFa: similar to Microdata, also inline, mostly seen on legacy sites and certain content management systems that bake it in automatically.

Now here is what structured data actually does for you, because this is where people set the wrong expectations. Structured data does not directly raise your rankings. Let me be blunt so you do not waste a quarter chasing the wrong thing. It does not move you from position eight to position three on its own, and anyone who tells you otherwise is selling something. What it does is change how your result looks and how machines reuse your content. Star ratings, FAQ dropdowns, recipe cards, event dates, breadcrumb trails in place of the raw URL, all of that comes from markup. Those features pull more clicks, and more clicks at the same position is real traffic you did not have yesterday. On top of that, the cleaner an engine understands your entity, the more likely it is to surface you in a knowledge panel or cite you in an AI answer, and those placements are getting more valuable every quarter.