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LinkedIn Post Analyzer
Paste your post. Get instant scores for hook strength, readability, length, and hashtags — with specific tips to improve reach before you hit publish.
What the analyzer checks
6 metrics that predict LinkedIn reach
The LinkedIn algorithm and reader psychology both favor the same things. Here’s what this tool measures and why it matters.
Hook strength
The first 2 lines are visible before “see more”. A strong hook drives 3–5x more clicks. We score your opening by length, format, and curiosity-gap patterns.
Post length
The LinkedIn algorithm sweet spot is 900–1,300 characters for organic reach. Under 300 = too short to dwell on. Over 3,000 = algorithm treats it as a wall of text.
Readability
Average sentence length and word complexity. Professional readers skim. Sentences under 15 words and short paragraphs dramatically increase completion rate.
White space
Single-line paragraphs create visual breathing room. Dense walls of text drive scroll-past. We count your line breaks relative to total length.
Hashtag count
LinkedIn recommends 3–5 relevant hashtags. Under 3 = missed discoverability. Over 8 = spam signals. We flag both extremes.
Call to action
Posts with a clear CTA (question, follow prompt, comment invite) generate 2–4x more comments. Comments are the highest-weight engagement signal for LinkedIn reach.
FAQ
Common questions
How does the LinkedIn post analyzer work?
The analyzer runs entirely client-side in your browser. It checks your post for: hook strength (first 2 lines), readability (sentence length, word complexity), structure (line breaks, white space), hashtag usage, post length vs. the LinkedIn algorithm sweet spot, and call-to-action presence. No data is sent to any server.
What makes a good LinkedIn post hook?
A strong LinkedIn hook is the first 1–2 lines visible before “see more”. It should create curiosity, make a bold claim, or ask a question that compels the reader to expand. Hooks under 140 characters that start with a number, a contrarian statement, or a direct address (“You…” or “I made…”) consistently outperform generic openers.
What is the ideal LinkedIn post length?
Based on platform analysis, posts between 900 and 1,300 characters consistently generate the highest organic reach. Under 300 characters is too short for meaningful dwell time. Over 3,000 characters is treated by the algorithm as a long-form article and distributed differently than feed posts.
How many hashtags should a LinkedIn post have?
LinkedIn’s own guidance and creator research consistently point to 3–5 relevant hashtags as the sweet spot. Fewer than 3 reduces discoverability. More than 8 triggers spam-adjacent signals in the algorithm and reduces organic reach.
Is my post text stored anywhere?
No. The entire analyzer runs in your browser using JavaScript. Your post text is never sent to any server and is not stored, logged, or tracked in any way.
What is Voice DNA?
Voice DNA is a tool that helps founders and creators develop a consistent, distinctive LinkedIn writing style. While this analyzer scores a single post, Voice DNA builds your personal writing profile over time — so every post sounds authentically like you, not like a generic AI output.