LinkedIn quietly replaced its entire content ranking system. If you post about ecommerce and your reach has tanked in the last six months, this is why.
The new system is called 360Brew — a 150-billion-parameter AI model that evaluates every post against the creator's demonstrated expertise, audience relevance, and content depth. It is the single biggest change to LinkedIn's feed since the platform launched content creation tools.
For ecommerce founders posting about Amazon, DTC, or marketplace strategy, this is not a minor tweak. It changes who sees your content and why.
What 360Brew Actually Does Differently
The old LinkedIn algorithm was a popularity contest. Get early engagement, ride the wave, go semi-viral. Pods worked. Engagement bait worked. Generic "thought leadership" worked if enough people liked it fast enough.
360Brew flipped this. The system now evaluates three dimensions:
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Expertise matching — Does your profile demonstrate authority on the topic you are posting about? 360Brew reads your headline, experience section, and posting history to build what LinkedIn calls a "Topic DNA" profile. If there is a mismatch between your claimed expertise and your post topic, reach gets throttled.
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Dwell time — How long do people actually read your post? Not how many people clicked the "like" button. Not how many people left a one-word comment. How long they stayed. LinkedIn introduced a "Depth Score" that weights sustained attention over quick reactions.
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Audience relevance — 360Brew tries to match your content to the people most likely to find it genuinely useful, not just people who engage reflexively. The distribution radius starts small and expands based on quality signals, not volume signals.
Why This Matters for Ecommerce Founders Specifically
Most ecommerce founders on LinkedIn fall into one of two traps that 360Brew punishes:
Trap 1: Posting about everything. You sell supplements on Amazon but your last five posts covered hiring advice, AI opinions, motivation quotes, and one Amazon tip. 360Brew cannot build a Topic DNA profile from noise. It takes roughly 90 days of consistent, topic-specific posting for the algorithm to categorize your expertise. Every off-topic post resets the clock.
Trap 2: Writing for engagement instead of depth. One-liner posts with "agree?" at the end used to work. The dwell time on those posts is about two seconds. Under 360Brew, a 200-word post that someone reads for 30 seconds outperforms a viral one-liner that gets 50 quick likes but zero sustained attention.
We see this pattern across every ecommerce client we work with at EcomGhosts. The founders who niched their content down to one or two core topics saw reach stabilize or grow through the 360Brew rollout. The ones who posted generically lost 40-60% of their impressions.
External Links Are Now a Liability
This one is painful but unavoidable. Posts with external links now see approximately 60% less reach than identical posts without links. LinkedIn wants people to stay on LinkedIn — not click out to your blog, your product page, or your lead magnet.
The old "link in first comment" workaround? Also penalized as of early 2026.
What this means for ecommerce founders:
- Stop linking to your Amazon storefront in LinkedIn posts. It kills reach.
- Stop linking to your blog if you want the post to perform. Share the insight natively instead.
- If you must share a link, do it in a comment after the post has had time to gain traction — but know that even this has diminished returns.
The implication is clear: LinkedIn rewards self-contained value. Your post needs to deliver the insight, not tease it and send people elsewhere.
What Is Actually Working Right Now
Based on what we are seeing across our client accounts and John's own 25,000-follower profile, here is what performs under 360Brew:
Document (carousel) posts get roughly 3x higher engagement than text-only posts. LinkedIn's own data confirms this. If you have a framework, a case study, or a step-by-step process, put it in a carousel.
Long-form text posts (800-1,200 words) that teach something specific outperform short takes. Dwell time is the reason. If someone spends 90 seconds reading your breakdown of Amazon PPC strategy, 360Brew registers that as a strong quality signal.
Consistent posting on one topic is more important than posting frequency. Three posts per week on Amazon creative strategy will outperform five posts per week that bounce between topics.
First-person stories with specific numbers still win. "We improved a client's CTR from 0.21% to 0.58% by changing one element on their hero image" gets both dwell time and engagement. Data-backed practitioner content is exactly what 360Brew was designed to surface.
The 90-Day Expertise Window
Here is the most actionable takeaway: 360Brew takes approximately 90 days to build your Topic DNA profile. That means if you start posting consistently about one topic today, you are looking at mid-summer before the algorithm fully recognizes your expertise and gives you maximum distribution.
This is not a reason to wait. This is a reason to start immediately and commit.
We tell every EcomGhosts client the same thing: pick your lane, post about it relentlessly, and let 360Brew do the work of connecting you with the right audience. The founders who started this process in Q1 are already seeing the compounding effect.
What to Do This Week
- Audit your last 20 posts. How many are on-topic for your core expertise? If fewer than 15, you have a Topic DNA problem.
- Remove external links from your next five posts. Write self-contained content that delivers value without requiring a click.
- Switch one text post per week to a carousel. Take a framework or process you already know and turn it into 6-8 slides.
- Write longer. If your posts are under 200 words, they are not generating enough dwell time to trigger 360Brew's quality signals.
The LinkedIn algorithm stopped rewarding volume and started rewarding expertise. For ecommerce founders who actually know their space, that is the best news you have heard all year.
EcomGhosts builds LinkedIn content systems for ecommerce founders. If your content strategy needs to catch up to 360Brew, let's talk.