Keyword Comment to DM | n8n LinkedIn

Implement the viral "Comment X to get Y" strategy on autopilot. This n8n workflow detects trigger keywords in comments and automatically sends DMs with your lead magnet or content.

Key Takeaways

• Automate the viral "comment to get" strategy that drives massive engagement on LinkedIn
• Multiple keyword triggers can deliver different content (guides, templates, videos)
• Smart connection checking ensures DMs only go to connected users (LinkedIn requirement)
• Platform-safe delivery using ConnectSafely's compliant automation

The "Comment for Link" Strategy

According to LinkedIn's algorithm research, comments are the highest-weighted engagement signal. You've seen posts like these blow up:

"I created a free guide on LinkedIn automation. Comment 'GUIDE' and I'll send it to you!"

This strategy works because it:

• Boosts engagement (comments = algorithm love)
• Creates urgency (fear of missing out)
• Generates leads (capture interested prospects)
• Feels exclusive (personal delivery via DM)

But manually sending DMs to every commenter? That doesn't scale. This workflow automates the entire process while maintaining a personal touch. Learn more about LinkedIn engagement strategies.

Workflow Overview

The Automation Flow

Comment detected → Keyword matched → Connection checked → DM sent → Logged

Setting Up Your Trigger Keywords

Single Keyword

Keyword: GUIDE
Response: "Here's your free LinkedIn automation guide: [link]"

Multiple Keywords

Configure different triggers for different content:

Keyword	Content Delivered	Use Case
GUIDE	LinkedIn Automation Guide PDF	Lead magnet delivery
TEMPLATE	n8n Workflow Template JSON	Developer resources
CHECKLIST	Daily LinkedIn Checklist	Quick-win content
VIDEO	Tutorial Video Link	Multimedia content

Workflow Configuration

Node 1: Schedule Trigger

Following HubSpot's research on response time:

• Run every 30-60 minutes
• Catches new comments quickly
• Balances speed vs API usage

Node 2: Get Post Comments

{
  "postUrl": "https://linkedin.com/posts/yourpost",
  "limit": 100,
  "sortBy": "recent"
}

Get your API credentials from the ConnectSafely dashboard.

Node 3: Filter by Keyword

// Filter condition
{{$json.commentText.toUpperCase().includes('GUIDE')}}

Node 4: Check Connection Status

Before sending a DM, verify:

• User is a 1st-degree connection (LinkedIn DMs require this)
• Haven't already received this content

Node 5: Send the DM

{
  "recipientUrn": "{{$json.commenterUrn}}",
  "message": "Hey {{$json.firstName}}!\n\nThanks for your interest! Here's the LinkedIn automation guide I promised:\n\n[Your Guide Link]\n\nLet me know if you have any questions!"
}

Node 6: Log Delivery

Track in Google Sheets:

• Commenter profile
• Keyword used
• DM sent timestamp
• Delivery status

Handling Non-Connections

When someone comments but isn't connected:

Option A: Send Connection Request First

1. Send connection request with note
2. Wait for acceptance
3. Then send the DM

Use our connection request automation for this.

Option B: Reply in Comments Post a public reply with the link (less personal but works)

Option C: Use InMail If you have LinkedIn Premium or Sales Navigator

Video Tutorial

Best Practices

Make It Obvious

In your post, clearly state:

• The exact keyword to comment
• What they'll receive
• How they'll receive it (DM)

Deliver Fast

According to Drift's research on response time:

• Run the workflow frequently
• People expect quick delivery
• Longer waits = more complaints

Keep Messages Natural

Avoid:

• Generic copy-paste feels
• Overly promotional language
• Multiple CTAs in one message

See our LinkedIn messaging best practices guide.

Track Everything

Monitor:

• Comments per post
• Keyword match rate
• DM delivery success
• Click-through rate on links

Content Ideas for Keyword Triggers

Lead Magnets

• PDF guides and ebooks
• Checklists and templates
• Swipe files and examples

Exclusive Content

• Early access to features
• Beta invitations
• Discount codes

Educational Resources

• Tutorial videos
• Course previews
• Webinar recordings

Tools & Templates

• Spreadsheet templates
• n8n workflow JSON files
• Notion templates

Compliance Notes

Following LinkedIn's platform guidelines:

• Only DM 1st-degree connections
• Respect LinkedIn's messaging limits
• Don't spam the same person
• Provide genuine value

Use ConnectSafely's rate limiting for automatic protection.

Conversion Metrics

Metric	Industry Average	Optimized
Keyword comment rate	5-10%	15-25%
DM delivery rate	70%	95%+
Link click rate	40%	60%+
Lead conversion	5%	15%+

Frequently Asked Questions

How do I set up LinkedIn comment to DM automation with n8n?

Use n8n with ConnectSafely.ai to monitor your posts for keyword comments (like "GUIDE" or "TEMPLATE") and auto-send DMs to 1st-degree connections. According to Second Brain Labs, keyword-based DM systems can achieve 72% acceptance rates. The workflow runs every 30-60 minutes to catch comments quickly. See the n8n integration guide for setup.

Can I use multiple trigger keywords on one LinkedIn post?

Yes, add multiple filter branches in n8n—each keyword triggers different content. For example, "GUIDE" sends a PDF, "TEMPLATE" sends a workflow file, "VIDEO" sends a video link. Use separate Send Message nodes to handle each content type with customized delivery messages.

What happens if someone comments the keyword but isn't connected to me?

LinkedIn only allows DMs to 1st-degree connections. For non-connections, you have three options: (1) auto-send a connection request first using our connection template then DM after acceptance, (2) reply publicly in the comments with the link, or (3) use InMail with LinkedIn Premium.

How often should LinkedIn keyword DM automation run?

Every 30-60 minutes for fast delivery. According to HubSpot's lead response research, responding within 5 minutes increases conversion 9x. Users who comment with trigger keywords expect quick delivery—longer waits lead to complaints and lower engagement.

Is automated LinkedIn DM sending against LinkedIn's terms of service?

LinkedIn's User Agreement technically restricts automation, but compliant tools like ConnectSafely respect rate limits (20-40 DMs per day) and only message willing recipients who explicitly requested content via keyword comments. This is value delivery, not spam. Focus on providing genuine value and following LinkedIn's guidelines.

Related Workflows

• Send Connection Requests to Commenters - Grow your network from engagement
• AI-Personalized Connection Requests - Add AI personalization to outreach
• DM Profile Visitors - Scale your follow-up messaging

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