LinkedIn Post Commenter and Liker Scraper

Select the LinkedIn source where your ideal prospects are already engaging, this can be:

• A LinkedIn company page

• A LinkedIn profile page

• A LinkedIn post

• A LinkedIn post search

The source can be from your competitors, partners, industry leaders or even your own pages. These are high-intent touchpoints where potential leads are already active.

This automation acts on your behalf on LinkedIn. The safest and most efficient way for the Phantom to connect to your account is by using your session cookie, which you can retrieve using PhantomBuster's browser extension. It's a simple 2-click installation:

• Get it for Chrome

• Get it for Firefox

If you're operating from another browser, you can find your cookie manually.

After selecting the source, choose the type of data you want to extract from it. You have checkboxes allowing you to select:

• Reactions: Includes likes, applause, support, celebration, and other LinkedIn reactions. Great for identifying leads who are aware of your brand and open to starting a conversation.

• Commenters: people who left a comment on the post. Deeper engagement, great for personalized outreach.

Note: LinkedIn may only show a limited number of comments on a post by default, based on what it considers “Most relevant.” This means your Phantom will extract only those visible comments. For more on this, see the step below: Discover your results.

You can extract either or both depending on your prospecting approach.

You can also fine-tune your extraction with optional settings, like updating HubSpot contacts automatically or limiting results to recent posts only:

• Push contact updates to HubSpot: Automatically update your existing HubSpot Contacts using the field mapping you’ve set.

• Only extract from recent posts: Set a specific date to only extract data from posts published after that date. Target the freshest leads first!

Click Launch to start the Phantom.

How this Phantom runs after launch

• The Phantom runs automatically once a day. It isn’t possible to change or customize the schedule, the daily run and post limits are fixed.

• It processes up to 8 posts per day to keep your LinkedIn account safe.

• New runs start on their own, so you can check back daily for fresh results.

Behind the scenes: Workers that power this automation

This Phantom is made up of smaller tasks called Workers. Each Worker runs automatically on a fixed schedule to handle part of the process:

• Activity Extractor : runs once daily at the start of the day to gather and monitor up to 50 posts.

• Post Commenters Export & Post Liker Export: each runs up to 8 times per day to capture engagement.

• Lead Sender: stores up to 50 new leads per hour in your LinkedIn Leads database.

These settings are fixed and cannot be customized.

This example shows results from a LinkedIn Company Page extraction.

The automation monitors and extracts posts with high engagement from your selected source. It will:

• Find the top 50 posts from the company

• Store and monitor them daily

• Automatically detect the most engaged posts based on new likes and comments (i.e. where your future leads are engaging)

To keep your LinkedIn account safe and ensure smooth performance with other Phantoms, the automation will extract data from up to 8 posts per day.

In the Leads tab of your automation, you’ll see:

• Every extracted profiles

• Their engagement type (like, comment, or both, shown separately)

• Direct LinkedIn URLs

In the Report tab of your automation, you’ll be able to track performance at a glance with key metrics and progress indicators:

• Posts scraped

• Commenters found

• Likers found

• Profiles processed

• Leads saved

You’ll also see how your Phantom is performing against these KPIs.

All extracted profiles are also saved to your LinkedIn Leads database, making it easy to follow up or sync with your CRM for outreach.

Why are there fewer commenters than expected?

If you’re extracting commenters from a LinkedIn post with hundreds or thousands of comments but only see a few hundred in your results, that’s expected, and here’s why:

LinkedIn displays the “Most relevant” comments by default, not every single comment. So when the Phantom runs, it extracts just the visible subset, typically the most engaged or upvoted ones.

Even in large posts (like lead magnets), most people commenting are reacting directly to the post, not to each other. That means you’re still capturing real engagement, from the most prominent, visible commenters.