Keyword comment trigger: the opt-in gate in LinkMagnet
Updated ·By Yannis Haismann
You announce a keyword. Only the people who actually write it in a comment get your resource — every other commenter is ignored. That single rule is what makes LinkMagnet 100% opt-in.
The keyword is the consent. If someone didn't type it, LinkMagnet never messages them — that's the whole difference between delivery and spam.
What it does
The keyword trigger is LinkMagnet's opt-in gate. You announce a keyword of your choice on a LinkedIn post — something like "comment GUIDE". LinkMagnet then scans the comments every 10 minutes and messages only the people who literally wrote that exact keyword. Comments without it are completely ignored: no scraping, no cold outreach, no messaging people who merely liked or engaged. Because the person typed the keyword themselves, every DM goes to someone who explicitly asked. The result is a clean, consent-based list where 100% of recipients opted in and zero cold messages are ever sent.
[ Data ]Backed by data — across 378,947 LinkedIn posts, lead-magnet posts get +67% more comments than regular posts.
See the study →The feature in brief
| Capability | Detail |
|---|---|
| Who chooses the keyword | You do — any word or phrase you like. |
| Who gets messaged | Only people who wrote your exact keyword. |
| Who is ignored | Every comment without the keyword. |
| Scan frequency | Comments are checked every 10 minutes. |
| Outreach type | Opt-in delivery — never cold messaging. |
| Data sourcing | No scraping — only voluntary comments. |
How it works, step by step
You choose and announce a keyword
You decide the trigger word — "GUIDE", "PDF", "CHECKLIST", anything — and tell readers to comment it to get your resource. It's fully your call.
LinkMagnet reads the comments
Every 10 minutes it scans your post's comments and matches the ones that contain your exact keyword. Comments without it are simply skipped.
Only matching commenters are messaged
Each person who typed the keyword receives your resource by DM. Everyone else stays untouched — they never get a message they didn't ask for.
Why it's useful
Consent is built into the trigger
The keyword is an explicit request. Because someone typed it on purpose, the DM that follows is delivery, not interruption — which keeps every message welcome.
Zero spam, zero noise
Tools that DM everyone who likes or engages create cold outreach at scale. LinkMagnet only ever contacts people who opted in by writing your keyword, so your messages stay clean.
Sharper, warmer targeting
A keyword filters for genuine intent. The people you reach didn't just scroll past — they raised their hand, which makes them far better leads than a scraped audience.
It protects your account
Opt-in delivery paired with conservative limits looks nothing like spammy automation. Messaging only people who asked is the safest way to use LinkedIn at scale.
Who it's for
Creators who hate spammy growth tools
You want reach without becoming the person who cold-DMs everyone. The keyword gate means you only ever message people who explicitly asked.
B2B founders building a clean list
Every contact entered by writing your keyword, so your pipeline is consent-based from the first touch — no gray-area scraping required.
Coaches running multiple offers
Use a different keyword per post or per resource. Each one routes the right people to the right asset, and ignores everyone who didn't opt in.
Anyone worried about LinkedIn restrictions
Because you never contact people who didn't comment your keyword, your activity stays opt-in and low-risk instead of looking like mass outreach.
Frequently asked questions
Who decides the keyword?
You do, every time. It can be any word or short phrase — "GUIDE", "YES", "PLAYBOOK" — and you announce it in your post so readers know exactly how to opt in.
Does LinkMagnet message everyone who comments?
No. It only messages people who wrote your exact keyword. Any comment without it is ignored, so people who just reacted or left an unrelated comment never get a DM.
Is this cold outreach?
No. Writing the keyword is an explicit request, so every message goes to someone who asked. There's no scraping and no messaging people who didn't opt in.
What if someone misspells the keyword?
Only comments containing your keyword are matched, so it's worth choosing a simple, hard-to-mistype word. Clear, short keywords get the cleanest opt-in.
Can I use different keywords for different posts?
Yes. A distinct keyword per post or per resource lets you route each audience to the right lead magnet while keeping every list strictly opt-in.
The bottom line
The keyword trigger is the quiet rule that makes LinkMagnet ethical and safe: it turns a public comment into explicit consent. By messaging only the people who typed your keyword and ignoring everyone else, it draws a hard line between delivery and spam — and that line is exactly what protects your reputation and your account while still capturing every genuinely interested lead.
