The First Comment Trick: A Smarter Place for Your Links
Putting a link straight in your caption quietly throttles how many people see your post, because platforms don't want to send users off-app. Move it to a pinned first comment instead and you'll reach more people for the cost of about four seconds.
Dave Smith
# The First Comment Trick: A Smarter Place for Your Links
You've written a cracking post. The photo's good, the caption actually sounds like you, and right at the end you've dropped a link: "Book here 👉 yourbusiness.co.uk/booking". Job done.
Except it's probably costing you reach. And the fix takes about four seconds.
Why links in the caption work against you
Here's the thing most platforms won't tell you outright: they don't want you leaving. Instagram, Facebook, TikTok — they all make money when people stay scrolling, watching ads, tapping around. A link that sends someone off to your website is the opposite of what they're optimising for.
So when you put a URL directly in your caption, the algorithm often quietly throttles how many people see it. It's not a conspiracy and it's not personal. The platform is simply nudging traffic that keeps users on-app ahead of traffic that ships them off it. Your perfectly good post ends up shown to fewer people than it deserves, purely because of where you parked the link.
There's a second problem too, and it's a human one. A raw URL sitting in the middle of your caption looks like an advert. People have spent years training themselves to scroll straight past anything that smells like a sales pitch. The link doesn't just hurt your reach — it can make the whole post feel less like a person talking and more like a billboard.
The fix: put the link in the first comment
Instead of dropping the link in the caption, post the caption clean — no URL — then immediately add the link as the first comment underneath your own post.
That's it. That's the trick.
Because the caption now contains no outbound link, the platform treats it as native content and shows it to more people. Anyone who wants the link finds it sitting right there in the comments, usually with a friendly "link in the comments 👇" at the bottom of your caption pointing the way.
You'll see big accounts and news outlets doing this constantly once you start noticing it. It's not a loophole that's about to be patched — it's just working with how the platforms want content to behave rather than against it.
How to actually do it
There's a knack to getting the timing right, so here's the order that works:
1. Write your caption with no link. End it with a gentle signpost: "Full details in the comments" or "Link's just below 👇". Keep it natural — you're pointing, not shouting. 2. Publish the post. 3. Add your link as the very first comment, straight away. Do it within seconds of posting so it sits at the top before anyone else comments. 4. Pin that comment if the platform lets you. On Facebook and Instagram you can pin a comment to the top so it never gets buried. That's the whole game — your link, locked in place, visible to everyone, without dragging down your reach.
If you're posting on X, the equivalent is putting the link in a reply to your own tweet rather than the tweet itself. Same principle: the main post stays link-free and travels further, the reply carries the destination.
A few honest caveats
This isn't magic, and it's worth being straight with you about the trade-offs.
You will lose a few clicks. Some people genuinely won't bother tapping into the comments, even with a clear signpost. What you're betting on is that reaching more people overall — even at a slightly lower click rate per person — leaves you better off than reaching fewer people with the link right under their nose. For most small businesses, that bet pays off, but it's worth watching your own numbers rather than taking my word for it.
It also matters less than people think for posts that aren't really about clicks. If you're sharing a behind-the-scenes photo or a customer story, you might not need a link at all. Save the first-comment trick for the posts that genuinely have somewhere to send people — bookings, a new product, an event, a blog piece worth reading.
And don't overthink the signpost. "Link in the comments" does the job. You don't need an arrow made of emojis or three exclamation marks. A calm pointer reads as more trustworthy than a desperate one.
The bigger point hiding in here
The first-comment trick is small, but it teaches something useful about social media generally: the platforms have their own preferences, and you'll always do better working with them than fighting them. They reward content that keeps people on-app and feels native. They quietly penalise anything that reads like an ad trying to drag users elsewhere.
You don't have to like that. But once you understand it, a lot of small decisions get easier — where the link goes, how the caption sounds, why your most "salesy" posts often perform the worst.
If keeping track of all these little knacks across Facebook, Instagram and X sounds like one more thing you haven't got time for, that's fair enough — it's exactly the sort of thing Aunty Social is built to handle in the background so you can get back to running the business. But honestly? Even if you never use a tool for it, just moving your links into the first comment from today onwards will do more for your reach than most of the advice you'll read this week.
Give it a go on your next post. Caption clean, link in the comments, pinned to the top. Four seconds, no cost, more eyes on your work.