Experiment: Structured Data Depth
Does adding more JSON-LD schema types to a page produce richer SERP snippets and higher CTR?
Hypothesis
Pages with diverse, nested JSON-LD schemas (Organization + WebSite + FAQPage + Article + BreadcrumbList) will receive richer SERP treatments than pages with minimal schema (just WebPage), resulting in measurably higher average CTR at equivalent average positions.
Setup
| Variable | Control | Variant (this page) |
|---|---|---|
| Schema types | WebPage only | Article + FAQPage + BreadcrumbList + ResearchProject |
| Content | Identical | Identical |
| Word count | ~600 words | ~600 words |
| Lighthouse score | 100 | 100 |
| Internal links | Same | Same |
What We're Measuring
- Rich snippet appearance — does the FAQPage schema produce expandable FAQ results?
- Click-through rate — measured via Google Search Console at matching average positions
- Indexing speed — which page gets indexed faster?
- Average position — does schema influence ranking beyond CTR?
Schema Types on This Page
This page deliberately uses more schema types than necessary as the experiment variant:
Article— standard article markupBreadcrumbList— site hierarchy signalFAQPage— targets rich FAQ results in SERPResearchProject— uncommon type, testing entity recognition
Timeline
| Date | Action | Notes |
|---|---|---|
| 2026-04-14 | Experiment started, both pages indexed | Sitemap submitted to GSC |
| — | First impression data | Waiting for indexing |
| — | 4-week snapshot | Compare CTR at matching positions |
Current Results
Experiment in progress — results will be recorded here as Search Console data accumulates (typically 4–6 weeks after indexing).
Background: What Google Says
Google's official position is that structured data does not directly improve ranking. From their documentation: "Structured data is not a ranking factor." However, they also acknowledge that rich results (FAQ dropdowns, review stars, how-to steps) can significantly increase CTR, and behavioral signals like CTR are believed to influence ranking indirectly.
Several SEO studies have found correlations between schema markup and higher rankings, though causation is difficult to establish — pages that invest in schema tend to be higher quality overall. This experiment attempts to isolate the schema variable specifically.
Frequently Asked Questions
(These questions are also in the FAQPage JSON-LD above — watching whether Google renders the expandable FAQ.)
Does structured data improve Google rankings?
Google has stated structured data does not directly improve ranking position. However, rich snippets can increase CTR, and higher CTR can indirectly affect ranking. This experiment measures whether additional schema types produce richer snippets and measurably higher CTR.
What schema types improve click-through rates the most?
FAQPage schema is known to produce expandable FAQ results in Google SERPs. HowTo, Recipe, Product, and Review schemas also produce rich results. Article and Organization schemas rarely produce visual enrichment but may improve entity understanding.