First comment
Keep the link out of the caption. The first comment goes up with the post.
Putting a link in the post costs reach on several platforms, so the workaround is to drop it in the first comment — which means being there the moment it publishes. Schedule the comment with the post and that stops being a manual task you set an alarm for.
Offered where the platform supports it.
Capabilities
What you get with First comment.
- Written at the same time as the post
- The comment is part of the post you are composing, not a follow-up task. It publishes with the post rather than whenever you next open your phone.
- Only offered where it exists
- Whether a platform supports a first comment is a per-platform fact read from the registry. The field appears for channels that support it and is absent for the ones that do not, rather than failing at publish time.
- Its own character limit
- A comment field has a different budget from the post body, and each platform’s is different again. The counter uses the comment’s real limit, not the post’s.
- Good for hashtags too
- A wall of hashtags under a caption reads badly and dilutes the copy. Moving it to the first comment keeps the caption clean while the tags still count.
The problem it solves
You have a post and a link. On several platforms, a caption containing an outbound link performs worse than one without, because the platform would rather you did not send people away.
So people put the link in the first comment instead. It works, and it has one operational cost: someone has to comment the instant the post goes live, or the trick does not work. That means being awake, online, and holding your phone at the scheduled minute.
Scheduling the comment with the post removes that entirely.
Where it is available
Four platforms support it, and the composer only offers the field for those channels:
- LinkedIn, profiles and pages
- Threads
Everywhere else the field is absent, because the platform has no equivalent concept. That is read from the same platform registry the character limits come from, so it stays correct as platforms change rather than depending on a list someone remembered to update.
Each of those platforms sets its own comment length limit, and they differ a lot from each other and from the post body. The counter uses the right one — see the individual platform pages for the current numbers, which are rendered directly from the registry.
Hashtags are the other good use. A caption that ends in twenty tags reads like marketing; the same tags in the first comment do the same job without cluttering the copy people actually read.
What it is not
Not a thread. A first comment is one comment on your own post. Breaking a long piece into a numbered sequence is threading, which is a different feature with different platform support.
Not a reply. It does not respond to anyone. It is the first thing under your post, published by you.
Not automatic. Nothing writes the comment for you. If you leave it empty, the post publishes without one.
Multi-platform posts
On a post going to several channels, the first comment applies wherever it is supported and is skipped where it is not. You do not have to split a post in two to use it — the channels that cannot take a comment just publish the post on its own.
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Questions
Frequently asked questions Everything the first evaluation usually needs.
- Which platforms support scheduling a first comment?
Instagram, Facebook, LinkedIn (both profiles and pages), and Threads. The field appears in the composer for those channels and is hidden for the rest, because the others have no equivalent.
- Why put a link in the first comment at all?
Several platforms reduce the reach of posts whose caption contains an outbound link. Putting the link in the first comment is the widely used workaround, and it keeps the caption readable.
- When does the comment publish?
With the post, as part of the same publish. You do not need to be online at the scheduled time.
- Does the comment share the post’s character limit?
No — the comment field has its own limit, and it differs per platform. The composer counts against the comment’s real limit, which is usually much smaller than the post body’s.
- Can I use a first comment on a multi-platform post?
Yes. The comment applies to the channels that support it, and the channels that do not simply publish without one.
- Is a first comment the same as a reply?
It is the first comment on your own post, published by the same account. It is not a reply to somebody else, and it is not a thread — long-form threading is a separate feature.
Keep reading
- Multi-platform publishingWrite once and publish to 16 platforms, with per-channel overrides where the platforms differ. Limits are enforced as you type, from the rules workers use.Read
- LinkedIn schedulerSchedule LinkedIn posts to a personal profile or a company page, with a first comment queued alongside and an accurate preview before anything publishes.Read
- Instagram schedulerSchedule Instagram posts, carousels, and Reels with a first comment queued alongside, plus free tools for splitting grids and carousel panoramas.Read