Newsletter Insights — independent newsletter & sponsorship data across 40K+ newsletters
Browse all →secret knowledge. public platform. if you get it, you get it. this is the modern revolution. reject mediocrity or go away.
Enter your email and we'll connect you with this newsletter.
Tell us your brand and audience. We send back 10-15 newsletters matched to your brief, with sponsor history and CPM ranges per placement.
$300·2-3 working days·refunded if we can't deliver
See what's includedThe Forbidden Files's metrics, benchmarks, and sponsor data in one document
156K
Top 10% in Uncategorized
substack
Uncategorized
+1.8%
0.60%· ~939/post
(comments + likes) / subscribers
vs 0.00% category avg
~3x per week
3.0 posts/week avg
vs 1.0/week category avg
$7/mo
Category avg: $5/mo
18009
newsletters in Uncategorized
Top 10% in Uncategorized
out of 18009 newslettersPublishing Frequency
~3x per week
Last published Jul 14, 2026
Usually publishes Mon, Wed
3.0 posts/week avg