Technical SEO
Custom Schema
Custom Schema is project-specific structured-data implementation written beyond a theme or plugin's default output.
What it means
It can compose defined Schema.org types and properties into a graph tailored to real site entities, identifiers and relationships. 'Custom' describes the implementation, not permission to invent Google feature fields or remote contexts.
Why it matters
Default generators may omit business-specific relationships, while uncontrolled custom code can duplicate plugin output or drift from source data. Clear ownership is necessary before adding another graph.
Example
A publisher extends its existing Organization node with stable identifiers and connects Article authors through shared @id values, rather than emitting a second disconnected organization on every page.
Common mistakes
Do not invent properties when vocabulary terms exist, create a private context for Google rich-result markup or add a second graph without auditing current generators. Keep claims visible and factual.
How AYSA handles this
Signals reviewed
existing generators, graph identities, unsupported requirement, data ownership, deployment surface
Problem AYSA can identify
AYSA can determine whether custom output fills a real gap or merely duplicates and contradicts existing markup.
Recommendation prepared
The proposal defines one graph owner, uses documented vocabulary and records the source for every custom-mapped fact.
Approval preview
The user reviews the before-and-after graph, generator ownership and maintenance responsibility.
Execution
AYSA can deploy approved JSON-LD extensions on supported WordPress templates.
Verification
AYSA validates vocabulary, rerenders templates and checks that existing entities remain coherent.
Limits
AYSA cannot make private vocabulary eligible for undocumented Google features.
Sources and further reading
- Schema.org — Documentation — Vocabulary documentation
- Google Search Central — General structured data guidelines — Official platform documentation
- Schema.org — Schema Markup Validator — Official validation tool
Written by Marius Dosinescu. Reviewed by AYSA SEO Editorial Team · 2026-07-28 00:00:00.
Quick answers
Frequently asked questions
Can custom properties create a Google rich result?
No. Google rich-result eligibility depends on documented supported types, properties and policies, not arbitrary private fields.
SEO execution campaign
Less SEO work. More organic growth.
AYSA monitors your website, finds opportunities, prepares the work, asks for approval and executes accepted changes so you can grow without living in SEO tools.
