B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
35%
35% -- cost per click reduction for Castorama (French DIY retailer) using Dataïads AI platform (2025)
Castorama reduced its cost per click (CPC) by 35% after implementing Dataïads.
- Secondary source referencing a case study without a specific date or methodology details.
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
35%
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
50
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Dataïads
Primary
Tier C
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Original Research
Dataïads
· Original study ↗
Methodology
Dataïads case study referenced by secondary blog; no publication date or sample details given for the underlying case study
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Castorama (French DIY retailer) using Dataïads AI platform: 35% cost per click reduction. Source: Dataïads (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/castorama-cpc-reduction-dataiads
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<blockquote cite="https://lighthousedata.io/data/castorama-cpc-reduction-dataiads" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>35%</strong> -- cost per click reduction for Castorama (French DIY retailer) using Dataïads AI platform<br><small>Source: Dataïads (2025) · <a href="https://lighthousedata.io/data/castorama-cpc-reduction-dataiads" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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