See what your Substack Notes are already telling you.
Paste your publication URL. Narrareach scores your recent Notes against data from 6.7 million Substack Notes, shows when to post, then previews the deeper profile report available inside Improve my profile.
6,743,129
Timing data
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Last 10
Notes scored
Gated
Detailed report
Benchmark your publication
Paste your Substack notes URL and we'll score your last 10 notes against the content baseline.
Your personalised benchmark
Enter your Substack notes URL above to benchmark content quality. Timing guidance uses 6.7M notes separately.
Best times to post
Based on 6,743,129 Substack Notes.
With image or without?
Does adding media actually move the needle on engagement?
7,281
avg likes
1,500
avg restacks
4,615
avg likes
831
avg restacks
Which posting windows should you test first?
Timing guidance from 6,743,129 Substack Notes.
Weekend evenings
8-11 pm ET
100/100
Highest engagement per note with fewer creators competing for attention.
Weekday evenings
3-10 pm ET
88/100
The safest repeatable window after work, when readers are relaxed and scrolling.
Midnight bonus
12-1 am ET
82/100
Surprisingly strong late-night engagement with minimal posting competition.
Weekend mornings
10 am-2 pm ET
76/100
Works best when readers are in weekend consumption mode.
Crowded mornings
Tue-Thu 8 am-12 pm ET
34/100
High posting volume creates more competition and lower relative engagement.
How long should your note be?
Average likes broken down by note length. Excludes media-only posts.
Image / Media: 39 notes
1–50 chars: 34 notes
51–100 chars: 52 notes
101–200 chars: 276 notes
200+ chars: 0 notes
Are notes getting more or less engagement over time?
Monthly average likes across all notes in the dataset.
Structural patterns of viral notes
What percentage of top-performing text notes use each technique?
Start with a punchy opener
First sentence ≤ 8 words
Contain a number / stat
In the first 80 characters
End with a question
Closes with "?"
Use ALL CAPS for emphasis
At least one capitalised word (3+ letters)
Keep it under 100 characters
Short, scannable text
How shareable are viral notes?
Restacks and replies as a percentage of total likes.
18.4%
Restack rate — of likes also restack
2.5%
Reply rate — of likes also reply
Detailed report
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Sign up to see detailed informationFree note scoring
See hook strength, length fit, questions, numbers, and format checks from your public Notes.
Visible timing chart
Compare posting windows against 6,743,129 Substack Notes before you create an account.
Deeper profile actions
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Questions writers ask
Is the Substack Profile Analyzer really free?
Yes. You can paste a public Substack publication URL and see note scoring plus timing guidance without creating an account.
What information is gated?
The free page shows your benchmark and best posting windows. Detailed format, length, trend, pattern, and shareability analysis opens inside Improve my profile after sign-up.
What data powers the best-times chart?
The timing chart is based on 6,743,129 Substack Notes, with your public note timestamps shown when they are available.
Do I need to connect my Substack account?
No. The free analyzer uses public notes from your publication URL. A connected account unlocks saved benchmarks and a deeper profile workflow.
Turn the free analysis into a publishing rhythm you can keep.
Save your benchmark, compare your posting history, and use Narrareach to schedule Notes around the windows that fit your audience.
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