LinkedIn newsletters have a strange quality: they work extremely well when done consistently, and almost everybody runs them inconsistently. The platform rewards a weekly rhythm with feed distribution; it penalizes silence aggressively. A newsletter with four issues in a year pulls less audience than a newsletter with four issues in a month. Even with identical subscriber counts.
The LinkedIn Newsletter Authority Checker audits the issue or newsletter page that LinkedIn serves publicly. Paste the URL, get the score, get the rewrite brief.
What it can and can't see
LinkedIn aggressively rate-limits scraping and gates some content behind sign-in. The public preview. What someone without a LinkedIn login sees. Carries title, cover, description, visible body, hashtags, and a subscriber count when the author has chosen to show it. That's what the audit reads.
The signals
The 13 checks roughly split into three buckets.
Presence. Newsletter title, cover image (og:image), description 60-200 chars, canonical tag pointing to the LinkedIn URL. These are the basics; about half of real newsletters fail one of them.
Structure. Visible word count (preview should show 300+), issue length in the 900-1800 LinkedIn sweet spot, at least two H2 sections, three or more list items for scannability.
Signal. Cadence declared in the body copy ("weekly," "biweekly"), a visible subscriber or follower count, hashtags used (3, 5 is the LinkedIn feed sweet spot), an explicit subscribe or follow CTA. These are the conversion surface.
The prompt you actually use
The generated LLM prompt takes the current title, description, word count, and missing signals. And asks Claude for: a cover-image brief you can paste into Canva or Figma, three headline variants tuned for LinkedIn's professional register, a cadence statement to add to the subtitle, and a three-issue trailing schedule that establishes the rhythm.
Why this pairs with email
Chapter 15 of The $97 Launch. Substack & Newsletter Revenue Strategies. Argues that platform newsletters are top-of-funnel and your owned email list is the asset. LinkedIn is the fastest top-of-funnel but also the most algorithm-dependent. Use it to seed the list, not as the list itself. Chapter 44 of The $100 Network. Email List Building, The Algorithm-Proof Channel. Is the owned-list playbook.