So you've got some JSON-LD on your site and you want to make sure search engines can actually understand it. A JSON-LD validator is exactly what you need—it checks your structured data for syntax errors and verifies it follows the proper schema.org format. I've used one to catch missing brackets and wrong property names before pushing live changes to product pages. It's especially handy when you're nesting multiple types or using @context with external vocabularies. Even small mistakes can brea… json ld validator 8