TL;DR: A restack shares a post, note, or comment with your own followers in the Substack Home feed. Click the circle arrow icon, then restack it as is or add a note of your own on top. You can also highlight a passage in a post and restack it as a quote. Restacks never go out by email.
How to restack on Substack
- Find the post, Note, or comment and click the circle-arrow (restack) icon.
- Restack it as is, or add a note of your own on top.
- To quote one passage, highlight the text in a post and select Restack. You can change the quote's background color and text alignment before posting.
- To undo a restack, find it on your profile, click the three dots, and choose Delete.
Restacks show up in your followers' Home feed and are never emailed (Substack Help, checked 24 Oct 2026).
More than 100 Substack bestsellers use WriteStack.
Substack tells you a Note got 12 restacks. It does not tell you whether 12 is good. You sit there looking at the number with no idea if you just had your best day of the quarter or a slightly above-average Tuesday, and by the time you decide it doesn't matter, you've stopped checking.
A restack is the only Substack mechanic that borrows someone else's audience and hands it to you for free, which is why it decides how far a Note travels more than the reaction count does. This piece covers how restacks actually work, what our own data says about which Notes earn them, and how to tell whether your restack rate is any good.
Table of Contents
- How to Restack on Substack
- What a Restack Actually Is
- Why Restacks Move Your Reach Further Than Reactions
- What Our Data Shows About What Gets Restacked
- The Restack Workflow Nobody Budgets For
- How to Write Notes People Want to Restack
- Managing Restacks on Your Own Posts
- Should You Buy Substack Restacks?
- Is 12 Restacks Good? The Question Substack Cannot Answer
- Mistakes That Kill Restack Potential
- Frequently Asked Questions
What a Restack Actually Is
According to Substack's own help center, a restack lets you share a post, note, or comment with your own subscribers and start a new conversation about it in the Home feed. You click the circle-arrow icon wherever you see something worth sharing, on a Note, a post, or a comment, and you get two options.
You can restack as-is, with no added text, which reposts the original into your feed with a small "restacked" label. Or you can restack with a note, adding your own commentary above the original content, which is closer to a quote-tweet than a plain reshare. You can also highlight a specific snippet inside a post and restack just that quote, with a customizable background color and text alignment, rather than resharing the whole piece.
One detail trips writers up constantly: restacks do not go out by email. They live entirely inside Notes and the Home feed. A restack can put your writing in front of thousands of new eyes, but it will never show up in anyone's inbox the way a newsletter send does.
Practical rule: never assume a restack functions like a re-send. If you want inbox reach, that is what your actual post send is for. Restacks live in the feed and never go out by email.
Because restacks live in the feed, timing does most of the work. A Note that lands while your readers are scrolling gets its first restack inside the hour and keeps traveling. A Note published into a dead window collects nothing and stays that way. WriteStack's engagement heatmap shows the hours your own followers are actually online, and the scheduling queue lines Notes up for those hours. Sync and the Chrome extension hand each one to Substack, and Sync runs automatically, so you don't have to be at the keyboard to press send. Start a free 7-day trial and publish your next week of Notes into the windows your readers actually use.
Why Restacks Move Your Reach Further Than Reactions
A reaction is a private signal. It tells Substack's ranking system that a reader engaged, and it might nudge your Note slightly further in the algorithm, but it does not put your words in front of anyone new. A restack does. Per Substack's guidance on what happens when someone restacks your post, the restack appears directly in the Home feed of the restacker's own subscribers and followers.
That is the entire mechanism in one sentence: a restack borrows someone else's audience and lends it to you for free. If a writer with 10,000 followers restacks your Note, your words land in front of a slice of those 10,000 people who have never heard of you. No reaction count, no matter how high, does that.
Restacks on posts also surface in a dedicated Restacks tab on the web version of the post itself, next to the regular Comments tab, so the discussion happening in Notes about your writing becomes visible to anyone reading the post directly. That is a second, quieter distribution channel stacked on top of the Home feed effect.
Practical rule: when you review Note performance, weight restacks above reactions. Reactions measure approval. Restacks measure how far your writing actually traveled.
What Our Data Shows About What Gets Restacked
We pulled a bounded sample of the 20,000 most recent Notes in WriteStack's dataset and isolated restack-specific numbers rather than general engagement, since restacks and reactions do not always move together. Everything below is our own measurement.
Structure makes a measurable difference. Notes written with a line break, rather than as one dense block of text, had a restack rate of 27.7%, meaning that share of Notes earned at least one restack. Single-block Notes came in at 24.5%. Multi-line Notes also averaged 1.68 restacks each against 1.26 for single-line Notes, roughly 28% more restacks per Note. On reactions the same split is real but smaller, around 11%, which is the first sign that these two metrics answer to different things.
| Format | Restack rate | Avg. restacks | Restack lift |
|---|---|---|---|
| Multi-line (has a line break) | 27.7% | 1.68 | +28% |
| Single-line (one block) | 24.5% | 1.26 | baseline |
Length tells a more specific story for restacks than it does for reactions. Reactions peak for Notes in the 150 to 300 character range, where they beat Notes under 50 characters by roughly a third. Restack rate keeps climbing past that point instead of flattening out, and the gap between the short bucket and the long ones is wider than the reaction gap at every step.
| Length bucket | Restack rate | Avg. restacks |
|---|---|---|
| Over 300 characters | 28.5% | 1.74 |
| 150 to 300 characters | 26.5% | 1.85 |
| 50 to 149 characters | 24.5% | 1.16 |
| Under 50 characters | 23.8% | 0.98 |
That split makes intuitive sense once you separate the two actions. A reader reacts to almost anything that catches their eye for a second. Restacking means putting your name next to someone else's words in front of your own audience, which asks for more conviction. A short one-liner earns a quick reaction. A longer Note that makes a complete argument earns the kind of conviction that makes someone willing to vouch for it.
Our full breakdown of format patterns across reactions and restacks covers the reaction side of this data in more depth, including a separate finding on how ending a Note with a question affects performance.
Practical rule: if you are writing specifically for restacks rather than raw reaction count, do not cut a Note down to the shortest possible version. Give the argument enough room to be worth reposting.
The Restack Workflow Nobody Budgets For
Restacks are reciprocal in practice. The writers who get restacked most are the ones who show up in other people's Notes, restack work they genuinely like, and reply where the conversation is live. That is just how a feed with humans in it behaves.
The problem is that this workflow has no home. You have Substack's Home feed open in one tab, your own Notes in another, someone's publication page in a third, your mentions somewhere you keep losing, and a draft you meant to finish in a fifth. Twenty minutes of engagement turns into forty because most of it is tab management.
WriteStack's Activity Center collapses that into one screen: what people said about your Notes, what the writers you care about are posting right now, and what deserves a restack today, without five tabs and without opening Substack in the first place.
The part people don't expect
WriteStack benchmarks your restack rate against other publications your size, which a per-account dashboard structurally cannot do, and then shows the direction it has moved month over month instead of a single-day snapshot. It tracks which of the two links inside a Note got clicked, going back to your very first Note, so "that one did well" becomes "that one sent 40 people to the archive."
The other piece is the inspiration feed, which updates continuously from live Notes data, so what you see on a Tuesday reflects what is actually earning restacks on Substack that week rather than a list somebody wrote once.
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How to Write Notes People Want to Restack
Restacking is a small act of social risk. The person doing it is telling their own readers "this is worth your time," so a Note has to clear a slightly higher bar than one that just earns a tap on a reaction icon. A few things raise the odds:
- Make the point complete in one Note. A restacker needs the idea to stand on its own once it lands in someone else's feed, without the surrounding context of your other recent Notes.
- Write something worth quoting. Notes that contain a single line someone could pull out and repeat tend to travel further, because that line becomes the reason to restack in the first place.
- Take an actual position. Restacking a hedge or a vague observation carries no social value for the person sharing it. Restacking a clear, specific claim gives them something to agree or disagree with in front of their own audience.
- Give it room. As the data above shows, restack rate rises with length up through the 300-character mark and beyond. Do not compress a real argument into a one-liner just because short Notes are easy to write.
The fastest version of this is to write more of what already worked. WriteStack's Note generator drafts from Notes and posts you have already published, so a Note that earned 30 restacks becomes the raw material for the next four instead of a screenshot you saved and forgot. If a draft misses, you switch models and try again.
If you are still deciding how a Note-first strategy fits against publishing full posts, our comparison of Notes versus Posts covers where each format earns its place, and our complete guide to Substack Notes covers the content side of what to actually write about.
Practical rule: before publishing, ask whether a stranger reading only this one Note, with no other context, would understand it well enough to restack it.
Managing Restacks on Your Own Posts
You have control over how restacks of your own posts show up. Substack's help documentation explains that you can remove any individual restack from your post's discussion section by clicking the three dots next to it and selecting "hide note from post," the same way you would moderate a comment. Anyone you have blocked or muted is automatically excluded from that section.
If you would rather not highlight restacks below your posts at all, the feature can be turned off entirely from your Substack Settings page, under the Details section, by toggling off "Show restacks below your posts." Most writers should leave this on, since a visible restack discussion is free social proof sitting directly under your writing, and knowing the switch exists is enough for the rare case where a restack needs moderating.
Practical rule: check your restack settings once, then leave them alone. The default, restacks visible with per-note moderation available, works for almost every publication.
Should You Buy Substack Restacks?
Buying restacks is a risk with little upside. Paid restacks usually come from accounts outside your niche, so they rarely turn into subscribers, and Substack's Content Guidelines say not to post spam when interacting with others. Earn restacks instead with Notes that are easy to quote and by restacking other writers first.
Free ways to earn more restacks:
- Restack two or three writers in your niche each day, with a note that adds something.
- Put one quotable line in every Note, so it can be restacked as a quote.
- Reply early on bigger Notes in your niche, so their readers see your name before your own Note lands.
- Post when your followers are online, so the Note gets early restacks while it is still fresh.
Is 12 Restacks Good? The Question Substack Cannot Answer
Every number above is an average across 20,000 Notes. Useful for deciding how to write. Useless for deciding whether your Tuesday went well, because your restack rate means nothing without a comparison class.
Substack's dashboard tells you a Note got 12 restacks. It cannot tell you whether 12 is good for a publication your size, and the reason is structural rather than a missing feature. Substack shows you your own account. It holds no data about anyone else's publication in a form it will ever put next to yours. So the only comparison it can offer is you against yourself last week, which tells you almost nothing, because last week had different Notes, a different day of the week, and a different number of followers.
WriteStack answers the other question. It compares your restack rate against other publications in your size band, and it plots the direction month over month rather than handing you a snapshot. Open the dashboard on a Tuesday and see that the Note you almost didn't post drove 40 link clicks, and that your restack rate is running well above typical for a publication your size, measured against the field.
The month-over-month view is the half people skip. A single strong Note is noise. A restack rate that has climbed for three straight months means the last three months of writing changed something, and a rate that has slid quietly since April means whatever you changed in April is still costing you. Neither of those shows up in a per-Note number, no matter how long you stare at it.
| What you want to know | Substack's own dashboard | WriteStack |
|---|---|---|
| Is my restack rate good for a publication my size | No, it holds no cross-publication data | Yes, benchmarked against comparable publications |
| Is my restack rate climbing or sliding | No, snapshots only | Yes, trend analysis month over month |
| Which link inside that Note got the clicks | No | Yes, per link, back to your first Note |
| Draft new Notes from the ones that already got restacked | No | Yes, with model selection |
| See a full week of scheduled Notes at once | Drafts list only | Queue and calendar view |
Start your free trial and find out what your restack rate looks like next to publications your size.
Mistakes That Kill Restack Potential
The most common mistake is writing Notes that only make sense as a reply to a conversation the reader was not part of. A restacker cannot vouch for something their own audience will find confusing out of context.
The second is publishing at a pace that buries good Notes under mediocre ones before anyone has a chance to restack them. If you are not sure how many Notes per day keeps quality up without flooding your own feed, our guide on how many Substack Notes to post per day walks through the tradeoff directly.
The third is publishing on a schedule nobody sees, since a Note that gets no early engagement rarely gets restacked later. This is where a burst-and-gap pattern does the most damage: four Notes on Sunday afternoon compete with each other for the same slice of feed attention, then nothing goes out until Thursday. WriteStack's queue spreads them across the hours your heatmap says your readers are online, so each Note gets its own first hour instead of splitting one.
The fourth is treating restack numbers as a scoreboard you glance at rather than data you act on. A Note that pulled triple your usual restack rate is a format worth repeating, and you will never know it was triple anything without a baseline to measure it against. Every WriteStack plan includes the heatmap, the Note generator, the Activity Center, and the analytics layer, on a 7-day free trial, so the baseline is there from your first week rather than three tiers up.
Frequently Asked Questions
Do restacks count toward subscriber growth directly?
Not directly. A restack puts your writing in front of new readers who were not following you, and some of those readers subscribe as a result, but the platform does not attribute growth to individual restacks the way it counts reactions or restacks themselves. Link-click tracking is the closest thing to a real attribution trail, since it shows which Note sent people to your archive and which one just collected applause.
Can I restack my own Note?
Yes, though it has limited value since it only reaches your own existing audience again rather than borrowing someone else's followers, which is where restacks earn their real distribution value.
Is a restack the same as a comment?
No. A comment stays attached to the original post or Note. A restack creates a new post in the restacker's own feed, visible to their subscribers and followers, with or without added commentary.
What is a good restack rate?
Across our 20,000-Note sample, between 23% and 29% of Notes earned at least one restack depending on format and length. Your own number depends on your size and niche, which is exactly why WriteStack benchmarks it against comparable publications instead of handing you a flat industry average.
Do restacks work differently on posts than on Notes?
The mechanic is the same, but a restacked post also appears in the Restacks tab on the post's web page, giving it a second surface. Notes only live in the feed.
What does restack mean on Substack?
To restack is to reshare a post, note, or comment with your own subscribers and followers in Notes. It shows up in their Home feed, with or without your own text on top.
How do I restack a quote on Substack?
Highlight the passage in the post, select Restack, and add any text you want. The passage appears as a quote in your note, and you can change its background color and text alignment before you post it.
How do I delete or undo a restack?
Find the restack on your profile, click the three dots, and choose Delete. That removes it permanently. To remove every note and restack at once, open your account Settings and use Delete notes in the Danger Zone section.
What is the difference between a restack and a share?
A restack stays inside Substack and goes to your followers' Home feed. Sharing sends a link somewhere else, such as a text message, email, or another social app.
Six weeks of watching the right number changes what you write. You stop guessing whether 12 restacks was a good day, because you can see it sitting well above the band for publications your size and climbing for the second month running. You write longer Notes because the data says longer Notes get vouched for. You restack other people from one screen instead of five tabs, and the reciprocity that used to feel like a chore becomes ten minutes before coffee. Sync sends the Notes out on schedule whether or not you remembered, and the ones that traveled furthest become the drafts for next week.
Start a free 7-day trial of WriteStack. Benchmarks against the field, trend lines month over month, and link-click history back to your first Note. More than 100 Substack bestsellers use WriteStack.