B
Evidence Grade B
Graded
under review
Safe to Cite
Current
77.2%
77.2% -- additional referring domain links for content over 3000 words for blog content (2026)
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
77.2%
Unit
Percentage
Data Vintage
2026
Entity
Sample Size
912,000,000
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
Backlinko (Brian Dean)
Primary
Tier B
https://www.biggamesmachine.com/b2b-pr-and-seo/ ↗
Source Article
B2B PR and SEO: The complete beginner's guide
Original Research
Backlinko (Brian Dean)
· Original study ↗
Methodology
Backlinko analysis of 912 million blog posts (Brian Dean)
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
blog content: 77.2% additional referring domain links for content over 3000 words. Source: Backlinko (Brian Dean) (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/content-over-3000-words-referring-domains-77-2
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<blockquote cite="https://lighthousedata.io/data/content-over-3000-words-referring-domains-77-2" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>77.2%</strong> -- additional referring domain links for content over 3000 words for blog content<br><small>Source: Backlinko (Brian Dean) (2026) · <a href="https://lighthousedata.io/data/content-over-3000-words-referring-domains-77-2" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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