Newsletter Insights — advertising rates and audience data for 41K+ newsletters
Browse all →
Advertisers are viewing this page. Claim it
Track Open Source CEO by Bill Kerr's growth
Get notified when subscribers, engagement, or pricing changes
Platform Portability
Uses custom domain (opensourceceo.com) — can migrate to any platform without losing subscribers
Are you a newsletter creator? Get verified insights →
Founders, investors & leaders in tech, that read Open Source CEO outperform their competition. Join thousands of weekly readers at Google, Canva, Stripe, TikTok, Sequoia and more.
Data updated Today
Track CPM rates as they change
Start tracking — freeAvg Likes
0.1
Engagement Rate
0.01%· ~0 likes + comments/post
(comments + likes) / subscribers
Quality Score
| Public |
| Why Every CEO Needs Someone To Report ToOct 8, 2026 | Public |
| Unfiltered: Granola Ate The CompetitionOct 4, 2026 | Public |
| Substack Committed CreatorcideOct 1, 2026 | Public |
| Building Culture & ResilienceSep 27, 2026 | Public |
| How Leaders Infuse AI OperationallySep 24, 2026 | Public |
| People First Equity PlansSep 20, 2026 | Public |
| Piloting Mercury Through The AI EraSep 17, 2026 | Public |
| Startmate: The First Yes A Founder HearsSep 15, 2026 | Public |
| How To Crush Your AI Search GoalsSep 13, 2026 | Public |
$39–$78
Based on Technology category benchmarks
Open Source CEO by Bill Kerr reports a rounded subscriber count of 1K. The platform doesn't expose finer-grained numbers, so week-to-week changes below the rounding threshold aren't visible in a chart.
Add to your watchlist to get notified the next time the reported count shifts.
Engagement vs Technology
0.01% engagement rate
Score Breakdown
Engagement Score
feastables.com
Publishing Frequency
~2x per week
Last published Oct 11, 2026
Usually publishes Sun, Thu
2.2 posts/week avg
Technology Pricing
$5/mo median
Your newsletter: Free
Monetization Readiness
Technology newsletters typically start charging at ~2K subscribers
50% of typical monetisation threshold
84% of similar-size Technology newsletters have paid tiers
Unlock revenue estimates, CPM benchmarks, and detected sponsors
Start tracking — freevs 258 newsletters in Technology
1K places you in the bottom half of newsletters in this category.
Posts per Week
2.2
median: 0.8
Publishing Consistency
87/100
median: 66/100
Subscribers
1K
median: 1K
Here's what we know about this newsletter's activity:
Publishing Pace
~2x per week
Very Consistent
Category Rank
#195 of 504
in Technology
Engagement Trend
Building
too early to measure
Ciaran's Crispy Cogitations
1K subs
Esto me interesa
1K subs
Deep Fundamental Research
2K subs
Get email alerts when subscribers drop or spike, when new sponsors appear, when pricing changes, or when publishing cadence shifts. Track unlimited newsletters across your watchlist with the Starter plan.
$29/mo·cancel anytime
See what's includedGet the full whitespace list with each brand's category fit, audience overlap, and recommended pitch order. Plus a comparison of Open Source CEO by Bill Kerr vs the top 15 peer newsletters on sponsor mix, growth, and CPM.
Including AWS Graviton processors, Airlock Digital, Lawfare + 237 more.
$300·2-3 working days·refunded if we can't deliver