B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
38%
38% -- drop in ai citation accuracy for AI answer engines (spam experiment) (2025)
Spam tactics propagating medical misinformation led to a 38% drop in citation accuracy in AI search / chatbots.
- Based on a documented project/experiment propagating medical misinformation using 50K forum posts
Attribution:
View source
Lighthouse Research Team
Last verified:
·
How we verify data →
Source verified
Evidence graded
Value
38%
Unit
Percentage
Data Vintage
2025
Entity
Sample Size
50,000
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
50
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
proxi.co.nz
Primary
Tier C
https://proxi.co.nz/should-seos-be-worried-about-ai-search/ ↗
Source Article
I have noticed an uptick in client interest in the last 6 months regarding whether AI chatbots and AI search will negatively impact or completely change SEO. Mostly, they ask me whether we are rethinking what we are doing in their strategy as a reaction to the changes in the landscape. And they want…
Original Research
proxi.co.nz
· Original study ↗
Methodology
Experiment using 50K forum posts to promote debunked vaccine effect studies
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
AI answer engines (spam experiment): 38% drop in ai citation accuracy. Source: proxi.co.nz (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/ai-citation-accuracy-drop-spam-2025
HTML Embed
<blockquote cite="https://lighthousedata.io/data/ai-citation-accuracy-drop-spam-2025" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>38%</strong> -- drop in ai citation accuracy for AI answer engines (spam experiment)<br><small>Source: proxi.co.nz (2025) · <a href="https://lighthousedata.io/data/ai-citation-accuracy-drop-spam-2025" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
Share
Use this data in your work
Copy the citation, embed the widget, or explore thousands more verified marketing statistics -- all free.