Subcategory answer
690
companies run at least one of the 2 technologies in it, <0.01% of 54,527,857 in the index. Landing 12 Sept 2026.
Tools and plugins to create, validate, and manage schema.org structured data for SEO, used by marketers and developers.
Companiesof 690 with any of themlanding 12 Sept 2026
No technology in this category has a company behind it
The catalogue holds 2 technologies here and the crawl has matched none of them to a company. This is what the data says, not a gap in the page.
2 of the 10 most detected technologies here sit under the publication gate on detector quality of 0.90, so they are listed rather than ranked: Schema App 546, WordLift 145.