B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
30%
30% -- duplicate content prevalence for websites (2025)
30% of websites face duplicate content issues according to Siteliner.
Attribution:
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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
50
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Siteliner
Primary
Tier C
https://kreativstreet.com/resources/blog/technical-seo-audit-service/ ↗
Source Article
How to Find and Cure Most Common SEO Problems Using Technical SEO Audit
In the ever-changing digital landscape, optimizing your website for search engines is crucial. A professional technical SEO audit service is very much at the heart of this, allowing you to identify and correct problems that may prevent you from performing well in search engine rankings. This compreh…
Original Research
Siteliner
· Original study ↗
Methodology
Cited from Siteliner by third-party blog
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
websites: 30% duplicate content prevalence. Source: Siteliner (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/duplicate-content-websites-30
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<blockquote cite="https://lighthousedata.io/data/duplicate-content-websites-30" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>30%</strong> -- duplicate content prevalence for websites<br><small>Source: Siteliner (2025) · <a href="https://lighthousedata.io/data/duplicate-content-websites-30" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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