Schema markup is essential for SEO, but implementing it incorrectly can cause more harm than good. One common issue is having hardcoded schema scattered across a WordPress site, which makes updates difficult and can lead to outdated or conflicting data.
In this case, a WordPress site had schema manually added in multiple locations, including headers and plugin settings. The goal was to remove all hardcoded schema and centralize control using the Yoast SEO plugin.
Issue Background
The site had schema markup:
- Hardcoded directly into header and footer scripts
- Managed through plugins like WPCode and header/footer tools
This resulted in outdated business information, duplicate schema output, and no centralized control.
Diagnosis
Duplicate schema sources
Schema was being output from multiple locations, causing conflicts and inconsistencies.
Hardcoded structure
Manual schema required developer intervention for updates and led to outdated data persisting on the site.
Yoast SEO underutilized
The site already had Yoast SEO available, which can handle schema generation more effectively.
Resolution Steps
Locate hardcoded schema
- Check WPCode and header/footer plugins
- Inspect theme files
- Search for script type application/ld+json
Remove manual schema
- Delete or disable hardcoded schema
- Ensure no duplicate markup remains
Configure Yoast SEO
- Set organization or person schema
- Update business details
- Ensure consistency across the site
Use Yoast Local SEO if applicable
- Manage location data
- Define business hours and contact details
Validate schema
- Use Google Rich Results Test
- Confirm a single source of schema output
Clear caches
- Clear site and CDN cache
- Re-test schema output
Final Outcome
Schema is now centrally managed through Yoast SEO. Duplicate markup has been removed, and business information is consistent and easy to update.
This improves SEO performance and reduces maintenance complexity.
