Connection note checker for LinkedIn
Paste a LinkedIn connection note and this checks it against LinkedIn's 200-character limit and the rules Sealrep's own LinkedIn drafts follow: no pitch, no link, no flattery, no generic praise and no AI tells. It also checks first messages, InMail and comments. Free accounts can add a note to about three invites a month.
By Naman Jain, founder of SealrepPublished 19 October 2026Last reviewed 12 October 2026
We review every request. Free trial once you're in, no card.
Check a note or a message. Before you send it.
We keep no text you paste: the check runs in memory. To stop abuse we keep a coded count of checks from your network for up to a day (a keyed hash, never your address) and a total for the day. It never connects to LinkedIn.
LinkedIn is a trademark of LinkedIn Corporation. Sealrep is not affiliated with LinkedIn, and this checker never connects to it.
LinkedIn's limits, and Sealrep's tighter ones.
| Topic | LinkedIn allows | Sealrep's check |
|---|---|---|
| Connection note | Up to 200 characters. Free members can personalise up to three invitations a month; Premium members, all of them.[1] | Over 200 characters is high |
| First message after connecting | No limit Sealrep relies on | Exactly one question, ending on it; over 300 characters is medium, over 600 high |
| Open Profile message | No limit Sealrep relies on | Exactly one question; over 600 characters is high |
| InMail | Up to 200 characters in the required subject and 1,900 in the body.[2] | A plain subject; one question; over 1,000 characters in the body is high |
| Comment | No limit Sealrep relies on | 2 to 4 sentences, 80 to 900 characters (medium); over 1,250 is high; a hashtag is medium |
What makes a note read like a template.
- Pitch words: book a call, we help, our platform, free trial, DM me, 15 minutes and others. A note is an introduction, not a sales email. High.
- Flattery: came across your profile, impressive profile, big fan, love your content. Medium.
- Generic praise: great post, thanks for sharing, so true, spot on. Say the specific thing instead. High.
- Links: any link or bare domain. In a note or a comment it reads as promotion. High.
- One question: a first message, an Open Profile message and an InMail ask exactly one question, and end on it.
- Markdown: LinkedIn shows asterisks and pound signs as typed. High.
- AI tells and dashes: the same list the cold email checker uses. High.
How Sealrep drafts on LinkedIn, and who sends.
Sealrep never holds your LinkedIn login. When you click, the side panel copies the visible text of the page you opened and sends it to Sealrep to draft a note. It never types, clicks, posts or runs in the background. You send.
Its drafts go through these same checks before you see them. The suggested pace is 10 invites a day and 60 a week.
A note that passes, and one that reads like a template.
Example data: two made-up connection notes, run through the real checker on 2 October 2026.
Hi Sam, your post on cutting SEO audit time made me rethink how we scope ours. I run a small agency in Pune and would like to follow your work. Open to connecting?
Hi Sam! I came across your profile and I'm really impressed by your amazing work. We help agencies like yours grow pipeline with our platform. Would love to show you a quick demo, check out acme-growth.com and book a call with me this week!
- HighLink: contains a link or domain: acme-growth.com
- HighPitch: reads as a pitch: 'book a call'
- HighPitch: reads as a pitch: 'our platform'
- HighLength: 240 characters; a connection note is at most 200
- MediumFlattery: flattery reads as a template: 'came across your profile'
- MediumFlattery: flattery reads as a template: 'your amazing'
Where every fact comes from. Read on 2 October 2026.
Spot a mistake? Email hi@sealrep.com and we will correct it within 5 business days.
Questions people ask. Answered straight.
what is the character limit for a LinkedIn connection note?
what is the InMail character limit?
Up to 200 characters in the subject and 1,900 in the body.[2] Sealrep's check stops at 1,000 for the body: a first InMail that long reads like a pitch.
does a connection note need a question?
No. The check does not ask for one in a note. It does for a first message after you connect, where one question you end on is easier to answer than a paragraph.
does this tool connect to LinkedIn?
No. It reads only the text you paste on this page.
do you keep what I paste?
No. The text is checked in memory and dropped. We count checks per day and nothing else.
Sealrep runs these checks on every draft and mailbox.
We review every request. Free trial once you're in, no card.
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- Nothing sent until you approve
- Domain checked before a campaign starts
- You send on LinkedIn, X and Reddit
Lab only · stands in for the hero and the sections after it; the pill appears once the hero buttons have gone
Get paying clients, not just leads.
Sealrep finds your buyers, drafts your cold email, LinkedIn, X and Reddit outreach, sorts every reply, and offers your booking link.
We review every requestFree trial, no card
- Cold emailResearched emails from your own mailbox, after you approve.
- LinkedInNotes and comments drafted for you to send.
- XReplies and DMs drafted for you to send.
- RedditFinds the threads your buyers are in. You post; it drafts.
- AI searchTracks how AI engines answer about you.
- Reply agentReads every reply, sorts it, and drafts the answer.
- Lead dataNamed companies with the reason they fit.
- Your mailboxesDomain checked, ramped slowly, paused on bounces.
- Browser extensionReads the page when you click, drafts what to say.