THE SHORT ANSWER
Four schema types do most of the work: Organization to establish who you are, Service or Product to define what you sell, FAQPage to make question-and-answer pairs machine-readable, and Article or WebPage with dates so freshness is unambiguous. Everything else is optional. Getting these four right and valid beats implementing twelve types badly.
The four that matter
Organization. Legal name, URL, logo, contact and identifiers. This is how a system knows the entity behind the claims and distinguishes you from a similarly named business.
Service or Product. What you sell, where, and at what price if you publish it. Without this, an engine has to infer your commercial model from prose, and it often infers wrong.
FAQPage. Question and answer pairs, machine-readable. This maps directly onto how assistants retrieve, which makes it the highest-value type per hour spent.
Article or WebPage with dates. Published and modified dates remove all ambiguity about freshness, which matters for any question containing a year.
The mistake that undoes all of it
FAQPage markup listing questions that do not appear on the page. It is common, it is a mismatch between markup and content, and it undermines trust in everything else you declare. If the page shows seven questions, the markup lists those seven questions.
The same applies to prices. Declaring a price in markup that the page does not show is worse than declaring nothing.
How to validate without guessing
Run every template through a structured-data validator once, then spot check a sample after any template change. Most schema failures are introduced by a template edit months after the original implementation, and nobody notices because nothing visibly breaks.
Related answers
Frequently asked questions
Does structured data guarantee AI citation?
No. It makes your content unambiguous to parse, which helps, but the decision to cite depends on whether your content answers the question better than alternatives.
Which schema type gives the best return?
FAQPage, because question-and-answer pairs map directly onto how assistants retrieve answers.
Should FAQ markup include questions not shown on the page?
No. Markup must match visible content. A mismatch undermines trust in every other declaration on the page.
Do I need dates in my markup?
Yes, for anything time-sensitive. Published and modified dates remove ambiguity about freshness, which matters for any question containing a year.
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