B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
70%
70% -- websites with incomplete structured data implementation for brand websites (2025)
Over 70% of websites have incomplete structured data implementation.
- Vendor claim without formal study methodology detailed
Attribution:
View source
Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
70%
Unit
Percentage
Data Vintage
2025
Entity
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Wislr
Primary
Tier B
https://www.wislr.com/articles/understanding-ai-visibility ↗
Source Article
Understanding AI Visibility: What Every Brand Needs to Know
The Shift to AI-Powered Discovery
The way people discover brands is changing rapidly. Today’s users increasingly turn to AI assistants like ChatGPT, Perplexity, and Google AI Overviews when researching products, services, and solutions. These AI platforms don’t just index your content. They interpre…
Original Research
Wislr
· Original study ↗
Methodology
Vendor claim, no methodology stated
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
brand websites: 70% websites with incomplete structured data implementation. Source: Wislr (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/websites-incomplete-schema-markup-70pct
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<blockquote cite="https://lighthousedata.io/data/websites-incomplete-schema-markup-70pct" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>70%</strong> -- websites with incomplete structured data implementation for brand websites<br><small>Source: Wislr (2025) · <a href="https://lighthousedata.io/data/websites-incomplete-schema-markup-70pct" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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