Scrape Competitor Upvoters Off Product Hunt With PhantomBuster

Scrape Competitor Upvoters Off Product Hunt With PhantomBuster is a cold outreach tactic for getting your first users: The founder found ~20 similar products on Product Hunt and used PhantomBuster's API to scrape every user who upvoted them (~11k profiles), most of which link to a Twitter account, giving him a ready list of warm prospects.

It's a strong fit for Dev tools / technical teams, and works especially well for Products with clear competitors already on Product Hunt. As a cold outreach play, plan for medium effort and expect results to arrive at a steady pace, all grounded in 1 linked primary source.

Cold outreachMedium effortMedium

Why does cold outreach work for this?

People who upvoted competing products are pre-qualified leads who already want this category of tool.

The exact steps (5)

The full step-by-step this founder ran, what they posted, where, and in what order, plus the watch-outs, is part of the library.

Unlock the steps · $29 oncePlus all 3,000+ tactics and the new ones we add weekly.

Sources

Frequently asked

What kind of products does the "Scrape Competitor Upvoters Off Product Hunt With PhantomBuster" tactic work for?
It is a good fit for Dev tools / technical — pick it when your product looks like that, since the play is shaped around how those users find new tools.
How is the "Scrape Competitor Upvoters Off Product Hunt With PhantomBuster" tactic verified?
It is drawn from 1 primary source — a real founder write-up or interview, not generic advice. It is linked in the Sources section above so you can read the original account yourself.
How much effort is it and how fast are results?
It is medium effort, and results tend to be medium.
Where can I see the exact step-by-step?
The full step-by-step a founder ran, documented via Source — IndieHackers, is in the paid library.

Related tactics

Cold outreachHigh effort· Slow

Engineer Deliverability Before You Scale

The sending infrastructure (domains, inboxes, warmup, and trust signals) that keeps cold mail out of spam folders, treated as the foundation the whole channel sits on.

Read the steps →
Cold outreachMedium effort· Medium

Scrape Your ICP With PhantomBuster Before You Commit

Use an automation/scraping tool to pull a target audience into a spreadsheet so you can test buyer-persona hypotheses fast instead of qualifying people manually.

Read the steps →
Cold outreachMedium effort· Medium

Stand Up Warmed Multi-Domain Inboxes Before Cold Emailing

From a responder: a dedicated cold-email infrastructure setup that spins up separate sending domains, configures DNS/DMARC, creates and warms multiple inboxes, then plugs them into senders like Instantly or Smartlead to scale volume without hitting spam.

Read the steps →
Cold outreachHigh effort· Fast

Auto-Dial Every New Lead Within Minutes to Beat the Cold-Off

Built an n8n + Vapi + Google Sheets system that auto-calls every uploaded lead immediately (up to ~600 calls/hour) so leads get a human-sounding call within minutes instead of going cold while sitting in a sheet.

Read the steps →
Cold outreachMedium effort· Slow

Warm Up Before You Slide In

Becoming a familiar face to a prospect through public engagement before any private message, so your eventual DM lands as semi-warm rather than ice cold.

Read the steps →
Cold outreachLow effort· Medium

Keep a Low Profile About Which Platform You Scrape

Commenters noted that scraping services quietly pull from LinkedIn but never name it in their marketing, sidestepping the legal attention that explicit 'LinkedIn scraper' branding attracts.

Read the steps →

Get all 3,000+ tactics in one place

Filter by your product and channel, follow the exact steps, and get the new tactics we add every week. One payment, yours for good.