LinkedIn's content algorithm in 2025 is significantly different from what it was in 2022. Several formats that were reliable growth drivers have declined sharply. The following is based on patterns visible in public post performance data and LinkedIn's own creator documentation.
What changed
Carousels (PDF documents) are declining
In 2022 and 2023, PDF-format carousels were the highest-engagement content type on LinkedIn. They drove shares, saves, and follows better than almost any other format. That edge has narrowed considerably. LinkedIn added native carousel posts (image-based, not PDF) in 2024, fragmenting the format. PDF carousels still work, but they no longer outperform good text posts the way they used to.
External links suppress reach
LinkedIn's algorithm continues to penalise posts that contain external links in the post body. The platform prefers content that keeps users on LinkedIn. The established workaround — putting the link in the first comment — still works. If you want to drive traffic to an article or product page, reference it in the post and drop the URL in a comment immediately after publishing.
Native video is back
LinkedIn's native video push in late 2024 brought improved reach for uploaded video (not YouTube links — native uploads). Captions matter: a significant share of LinkedIn users watch video without audio. Without captions, you lose a large portion of your potential audience.
What still works
Text-only posts with a strong hook
The highest-reach format on LinkedIn in 2025 is a text-only post with a first line designed to make the reader click "see more." This is not clickbait — it is structural. LinkedIn shows roughly 3 lines of preview text. Your opening three lines determine whether someone reads the rest. Effective hooks share a counter-intuitive finding, a specific number, or a brief personal story opening.
Examples that work:
- "I reviewed 200 LinkedIn posts. Only 12 got traction. Here's what they had in common:"
- "We cut our posting frequency from 5x to 2x per week. Reach went up 40%."
- "Three years ago I had 800 followers. I've never used a growth hack."
Note the absence of "I'm excited to announce" or "Thrilled to share." Those phrases are correlated with low-reach posts, partly because they signal promotional content and partly because they waste the hook.
Early comments from outside your network
LinkedIn's algorithm treats comments from people outside your direct network as a stronger signal than comments from first connections. This is why posts that reach non-followers in the first hour tend to compound. Responding to comments quickly (within the first 2–3 hours) also extends the post's lifespan in the feed.
Consistency over virality
LinkedIn's algorithm rewards posting cadence. Accounts that post 2–4 times per week consistently show higher baseline reach than accounts that post sporadically, even if the sporadic posts occasionally go viral. The platform appears to build a "trust score" for accounts that behave predictably.
Posting times
The most-cited window for LinkedIn is Tuesday through Thursday, 8–10am in your audience's primary timezone. This is broadly accurate but audience-dependent. LinkedIn's own analytics show when your specific followers are most active — that data should override general guidance.
Hashtags
Use 3 hashtags maximum. More than 5 is associated with reduced reach, possibly because it signals low-quality or spam-adjacent content. Hashtag discovery on LinkedIn is less important than it used to be — most reach comes through your network and the algorithm, not hashtag browsing.