B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
5
5 -- sites serving bot wall to automated visitors for US industrial suppliers (2025)
5 of the 7 audited US industrial supplier sites served a bot wall, challenge screen, or 403 response to automated visitors.
- Automated headless browser requests triggered bot mitigation rules
- Sample size is limited to 7 companies
Attribution:
View source
Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
5
Unit
Count
Data Vintage
2025
Entity
Sample Size
7
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
95
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Harvv
Primary
Tier A
https://harvv.com/research/industrial-seo-ai-age ↗
Source Article
Traditional Industry in the AI Age: 7 Industrial Suppliers, Measured
Traditional Industry in the AI Age: We Audited 7 of America's Biggest Industrial Suppliers
These companies built the physical economy. Their catalogs move billions in bolts, gloves, motors and shop supplies. But the web is shifting from ten blue links to AI answers - ChatGPT, Perplexity, Google AI O…
Original Research
Harvv
· Original study ↗
Methodology
Harvv audit; Cloudflare challenge or 403 responses
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
US industrial suppliers: 5 sites serving bot wall to automated visitors. Source: Harvv (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/industrial-suppliers-bot-wall
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<blockquote cite="https://lighthousedata.io/data/industrial-suppliers-bot-wall" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>5</strong> -- sites serving bot wall to automated visitors for US industrial suppliers<br><small>Source: Harvv (2025) · <a href="https://lighthousedata.io/data/industrial-suppliers-bot-wall" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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