B
Evidence Grade B
Graded
under review
Safe to Cite
Current
49%
49% -- content marketing effectiveness share for articles and blog posts (2026)
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
49%
Unit
Percentage
Data Vintage
2026
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
Ironpaper
Primary
Tier C
https://www.allisonwhitehead.co.uk/3-statistics-you-should-know-about-inbound-marketing/?utm_source=… ↗
Source Article
3 statistics you should know about inbound marketing
Original Research
Ironpaper
· Original study ↗
Methodology
Ironpaper research cited by secondary blog; white papers ranked second at 37%
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
articles and blog posts: 49% content marketing effectiveness share. Source: Ironpaper (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/blog-posts-top-content-marketing-type
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<blockquote cite="https://lighthousedata.io/data/blog-posts-top-content-marketing-type" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>49%</strong> -- content marketing effectiveness share for articles and blog posts<br><small>Source: Ironpaper (2026) · <a href="https://lighthousedata.io/data/blog-posts-top-content-marketing-type" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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