How do your Substack notes stack up?
Enter your publication URL below. We'll score your notes against patterns from 401 viral notes and show you exactly where to improve.
Benchmark your publication
Paste your Substack notes URL and we'll score your last 10 notes against the viral baseline.
Your personalised benchmark
Enter your Substack notes URL above to see how your content stacks up against 401 viral notes.
How the analyzer works
Three steps, zero sign-up, instant results.
Enter your URL
Paste your Substack publication URL (e.g. yourname.substack.com). Works with any public publication.
We fetch & score
We pull your last 10 notes and score each one against our viral benchmark dataset of 401 notes with 500+ likes.
Get your report
See per-note scores, hook strength, length optimization, and specific recommendations to boost engagement.
Frequently asked questions
Is the Substack Profile Analyzer really free?
Yes, 100% free with no account required. Enter any Substack publication URL and get an instant analysis of your last 10 notes scored against viral patterns.
What data do you analyze?
We fetch your 10 most recent Substack notes and score each one on hook strength, length optimization, format effectiveness, and engagement patterns — benchmarked against 401 viral notes with 500+ likes.
Do I need to connect my Substack account?
No. Just paste your publication URL (e.g. yourname.substack.com). We read publicly available notes — no login or API keys needed.
How is the viral benchmark calculated?
We analyzed 401 Substack notes that received 500+ likes, totaling over 1.4 million likes. The benchmark covers optimal length, hook patterns, posting times, and content format.
Can I use this for any Substack publication?
Yes — enter any public Substack publication URL. It works for your own profile or any writer you want to benchmark.
Go further with Narrareach
Schedule notes that actually perform.
Use these insights to write better notes — then schedule them weeks in advance with Narrareach. Cross-post to Medium, LinkedIn, and X.