B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
9%
9% -- ad cost change for Ecommerce advertising (2025)
Ad costs increased by 9% year-over-year according to Contentsquare's 2025 benchmark.
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
9%
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
95
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Contentsquare
Primary
Tier A
https://kirro.io/ecommerce-cro ↗
Source Article
Ecommerce CRO Checklist (2026): Page-by-Page Store Audit
Ecommerce CRO is the process of fixing the pages in your online store so more visitors buy something. Not “more traffic.” Not “better branding.” Just: more of the people already visiting your site actually completing a purchase.
This is a page-by-page checklist. Homepage, category pages, product pag…
Original Research
Contentsquare
· Original study ↗
Methodology
Contentsquare 2025 benchmark
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Ecommerce advertising: 9% ad cost change. Source: Contentsquare (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/ad-cost-increase-9-percent
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<blockquote cite="https://lighthousedata.io/data/ad-cost-increase-9-percent" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>9%</strong> -- ad cost change for Ecommerce advertising<br><small>Source: Contentsquare (2025) · <a href="https://lighthousedata.io/data/ad-cost-increase-9-percent" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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