B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Current
10%
10% -- share of web pages with ai authorship signs for English-language web pages (Common Crawl sample) (2026-07)
In July 2026, 10% of sampled English-language web pages from Common Crawl showed significant signs of AI authorship.
- AI detection models can misclassify individual documents; broad web trend finding.
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
10%
Unit
Percentage
Data Vintage
2026-07
Entity
Sample Size
500,000
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
95
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Pew Research Center
Primary
Tier A
https://writingdetective.com/2024-content-marketing-trends/ ↗
Source Article
Content Marketing Trends 2026: What Matters Now
A review of content marketing trends 2026 reveals a clear shift: publishing volume alone is a poor content goal. Useful, recognizable, and trusted work has a better chance of reaching people wherever they look for answers. That may be a search results page, an AI assistant, an email inbox, YouTube, …
Original Research
Pew Research Center
· Original study ↗
Methodology
Pew Research Center analysis of nearly half a million English-language pages from Common Crawl; AI detection models can misclassify individual documents
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
English-language web pages (Common Crawl sample): 10% share of web pages with ai authorship signs. Source: Pew Research Center (2026-07). Via Lighthouse Intelligence -- https://lighthousedata.io/data/pew-ai-authorship-web-pages-2026
HTML Embed
<blockquote cite="https://lighthousedata.io/data/pew-ai-authorship-web-pages-2026" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>10%</strong> -- share of web pages with ai authorship signs for English-language web pages (Common Crawl sample)<br><small>Source: Pew Research Center (2026-07) · <a href="https://lighthousedata.io/data/pew-ai-authorship-web-pages-2026" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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