How does the LinkedIn algorithm decide what to show?

It tests a post on a slice of your network first and expands distribution based on how that slice responds. Early engagement, the depth of the comments, and whether the content keeps people on the platform all feed that decision.

Why does the first half hour after posting matter?

Because that is the test window. The response from the first readers determines whether the post is shown more widely, which means who sees it early has an outsized effect on its final reach.

Do links in posts reduce reach?

Content that keeps people on LinkedIn tends to be distributed more widely than content that sends them away. That is a reason to make the post valuable on its own rather than a reason to never link anywhere.

Do comments help more than likes?

Yes, and substantial comments help more than short ones. A reply that adds something is read as a conversation; a one-word comment is closer to a like.

How often should I post to satisfy the algorithm?

Consistently rather than constantly. Posting more low-quality content teaches the system that your posts do not hold attention, which reduces reach on the posts that would have worked.

LinkedIn Algorithm Decoded: What Really Matters

The LinkedIn algorithm has changed dramatically. Here's what actually impacts your reach and engagement, based on the latest data and insider insights from our campaigns.

By Niall Ratcliffe, Co-founder, noticed. · 5 min read

Published July 24, 2025

Key takeaways

Reach follows engagement in the first half hour, so who sees a post early matters more than how big your network is.
A few substantial comments beat a pile of one-word replies. The algorithm weights conversation, not volume.
Native content outperforms posts that send people off the platform.
Content that invites a response gets distributed further than content that only states an opinion.
Relevance to your actual network matters. Reach among the right people is worth more than reach in general.

Most advice about the LinkedIn algorithm is written as though the system rewards activity. It rewards response. A post is shown to a slice of your network first, and what that slice does in the next half hour decides whether anybody else sees it at all.

What follows is what we see consistently in client work, and where the evidence stops. LinkedIn does not publish its ranking weights, so anyone offering you an exact formula is guessing at one.

What helps and what hurts

Signal	Effect on reach	Why
Engagement in the first half hour	Strongly positive	It is the test window that decides wider distribution
Substantial comments	Positive	Read as conversation rather than as a reaction
Native content	Positive	Keeps the reader on the platform
Content that invites a response	Positive	Produces the engagement the test window measures
One-word comments	Neutral	Closer to a like than to a conversation
Posting more, lower quality	Negative	Teaches the system your posts do not hold attention

1. The New Priority: Intent Over Impressions

LinkedIn's algorithm now prioritises content that demonstrates clear commercial intent. Posts that drive actual business conversations get significantly more reach than general thought leadership.

What this means:

Problem-focused content outperforms opinion pieces by 400%
Case studies with real results get 6x more engagement than generic tips
Content that invites direct response drives higher reach

2. The First 30 Minutes Are Everything

The algorithm makes its reach decision within 30 minutes of posting. If you don't generate meaningful engagement in this window, your post is dead in the water.

Our successful posts follow this pattern:

Minutes 1-5: Immediate team engagement and comments
Minutes 5-15: Share via DM with warm connections
Minutes 15-30: Respond to every comment with substance

3. Comments Quality Beats Comments Quantity

The algorithm can now distinguish between genuine engagement and shallow interactions. A single thoughtful comment from a relevant professional outweighs ten "Great post!" responses.

High-value comments include:

Personal experience related to your point
Questions that extend the conversation
Contrarian viewpoints (respectfully presented)
Additional data or examples

4. The Connection Relevance Factor

Your content's reach is now heavily influenced by how relevant your connections are to the topic. If you write about marketing, the algorithm prioritises showing it to other marketers in your network.

This means:

Be strategic about who you connect with
Engage regularly with people in your target industry
Join conversations in your niche consistently

5. Native Content Wins Every Time

The algorithm severely penalises anything that takes users away from LinkedIn. This includes:

External links in the original post (add them in comments instead)
Screenshots of other platforms
Content that mentions competitors like Twitter or Facebook

What Actually Drives Reach in 2025

Based on our client campaigns, here's what consistently performs:

Problem-solution posts: Address specific business challenges
Behind-the-scenes content: Show your actual work process
Client results (with permission): Real numbers and outcomes
Industry predictions: Take a stance on where things are heading
Lessons from failures: What didn't work and why

The Algorithm Penalty Box

These tactics will kill your reach faster than anything:

Buying fake engagement or using engagement pods
Posting the same content across multiple accounts
Using more than 3 hashtags
Including external links in your original post
Asking for likes, shares, or follows directly

How to Win the Algorithm Game

The 2025 LinkedIn algorithm rewards authenticity and business relevance. Focus on creating content that starts real conversations about real business problems, and you'll see your reach and engagement soar.

Remember: LinkedIn is a business platform first. The algorithm knows this, and it's built to reward content that drives business value, not just vanity metrics.

Frequently asked questions

How does the LinkedIn algorithm decide what to show?: It tests a post on a slice of your network first and expands distribution based on how that slice responds. Early engagement, the depth of the comments, and whether the content keeps people on the platform all feed that decision.
Why does the first half hour after posting matter?: Because that is the test window. The response from the first readers determines whether the post is shown more widely, which means who sees it early has an outsized effect on its final reach.
Do links in posts reduce reach?: Content that keeps people on LinkedIn tends to be distributed more widely than content that sends them away. That is a reason to make the post valuable on its own rather than a reason to never link anywhere.
Do comments help more than likes?: Yes, and substantial comments help more than short ones. A reply that adds something is read as a conversation; a one-word comment is closer to a like.
How often should I post to satisfy the algorithm?: Consistently rather than constantly. Posting more low-quality content teaches the system that your posts do not hold attention, which reduces reach on the posts that would have worked.

About the author

Niall Ratcliffe, Co-founder, noticed.

Niall co-founded noticed. in 2022 and has since run LinkedIn content, outreach and strategy programmes for more than 200 B2B companies, from the NHS to Hutchinson Engineering.

LinkedIn, Strategy