B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
30%
30% -- cumulative ad cost increase for paid acquisition (nine industries) (2025)
Cost per visit in paid acquisition experienced a 30% cumulative increase over 3 years ending in 2025.
- Measured across nine industries
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
30%
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
Contentsquare
Primary
Tier B
https://healthroutedaily.co/the-brand-tax-how-google-profits-from-demand-you-already-own/569887/ ↗
Source Article
The Brand Tax: How Google Profits From Demand You Already Own
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Branded search inflates your return on ad spend (ROAS) by taking credit for demand you already own, and every input in the paid acquisition model is getting worse simultaneously.
This week, you’ll cover:
- The math on h…
Original Research
Contentsquare
· Original study ↗
Methodology
Contentsquare analysis of 99 billion sessions across nine industries
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
paid acquisition (nine industries): 30% cumulative ad cost increase. Source: Contentsquare (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/ad-costs-rise-30-percent-3-years
HTML Embed
<blockquote cite="https://lighthousedata.io/data/ad-costs-rise-30-percent-3-years" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>30%</strong> -- cumulative ad cost increase for paid acquisition (nine industries)<br><small>Source: Contentsquare (2025) · <a href="https://lighthousedata.io/data/ad-costs-rise-30-percent-3-years" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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