B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
4,000,000
4,000,000 -- monthly site visitors for Substack (2025-07)
According to Ahrefs traffic estimates cited in the text, Substack received over 4 million visitors in July 2025 alone.
- Traffic figures are estimates based on Ahrefs data
- Source states 'over 4 million'
Attribution:
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Lighthouse Research Team
Last verified:
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Source verified
Evidence graded
Value
4,000,000
Unit
Count
Data Vintage
2025-07
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
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
35
Freshness
95
Source
Ahrefs
Primary
Tier B
https://www.learningrevolution.net/what-is-substack/ ↗
Source Article
What Is Substack & How Does It Work? Complete Guide For Course Creators (2026)
TL;DR: What Is Substack and Why Should You Use It?
Substack is a platform that lets you publish newsletters, grow an email list, and monetize your expertise—all in one place. Unlike traditional email tools, Substack has a built-in discovery engine. That means your content can get recommended to new …
Original Research
Ahrefs
· Original study ↗
Methodology
Ahrefs traffic estimates
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Substack: 4,000,000 monthly site visitors. Source: Ahrefs (2025-07). Via Lighthouse Intelligence -- https://lighthousedata.io/data/substack-monthly-visitors-july-2025
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<blockquote cite="https://lighthousedata.io/data/substack-monthly-visitors-july-2025" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>4,000,000</strong> -- monthly site visitors for Substack<br><small>Source: Ahrefs (2025-07) · <a href="https://lighthousedata.io/data/substack-monthly-visitors-july-2025" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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