I maintain a handful of small marketing sites, and for years my structured-data workflow was embarrassing: copy a JSON-LD block from an old project, find-and-replace the values, paste it into the <head>, and hope. It worked until it didn't — a trailing comma here, a wrong @type there, and the rich result silently disappears for a month before anyone notices.
Structured data is one of those things that's easy to add and genuinely hard to add correctly. These are the notes I wish someone had handed me earlier.
What JSON-LD actually is
JSON-LD is just a <script type="application/ld+json"> block that describes your page in a vocabulary search engines understand ( that knows the required-versus-recommended fields per type when I need a clean block for a type I don't add often, because it won't let me forget a required property or typo an @type.
Second, I validate in two passes, because "valid JSON" and "valid schema" are different questions. For the first, any tells you whether the block is actually eligible for a rich result, which is the only thing that matters in the end.
A workflow that survives contact with reality
Here's the checklist I actually follow now, in order:
- Generate or hand-write the block for the page type.
- Paste it through a JSON validator — catch the syntax errors first, they're the cheap ones.
- Run it through the Rich Results Test against the live (or staged) URL.
- Eyeball that every claim in the markup is visibly true on the page.
- Only then ship it.
It sounds like a lot. It takes about ninety seconds once it's a habit, and it has saved me from shipping broken markup more times than I'd like to admit.
When NOT to bother
Structured data isn't free — it's another thing you have to keep in sync with the page. If your content changes often and your markup doesn't, you'll drift into the second mistake above, and wrong schema is worse than no schema. For a brochure page that never changes, mark it up once and forget it. For a fast-moving page nobody will maintain, sometimes the honest call is to skip it.
None of this is advanced. It's mostly about treating markup like code — generate it from something that knows the rules, validate it before it ships, and never claim something the page doesn't actually show.
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