Use Case

Automate Instagram Comment-to-DM Replies Instantly

Someone types your trigger word — 'LINK', 'FREE', 'DETAILS' — and they receive a personalized DM in under one second. Scale to thousands without lifting a finger.

How it works

01

Set a trigger keyword

Choose any word that signals interest — "FREE", "LINK", "GUIDE", "INFO". You can set multiple keywords per campaign.

02

Lyncly detects the comment

Our webhook fires the instant a matching comment lands. No polling, no delays — real-time detection.

03

Sends a personalized DM

The commenter receives your message instantly, addressed by name. You get a lead. They get the resource.

Built for this

Sub-second delivery

Comment detected → DM sent in under 1 second. Even at 3 AM on a viral post.

Multi-keyword matching

Exact match, partial match, or catch-all — one campaign can respond to dozens of trigger variants.

Duplicate prevention

Smart deduplication means each person gets one DM per campaign, no matter how many times they comment.

1,247

DMs handled overnight on one viral post

Lyncly's queue processed every comment — zero missed, zero duplicates

Frequently asked questions

How fast does Lyncly send the DM after a comment?

Under one second. Lyncly uses real-time Instagram webhooks, so the DM fires the instant a matching comment is detected — no polling delays.

What keywords can I use as triggers?

Any word or phrase. Common triggers include "LINK", "FREE", "GUIDE", "SEND IT", "INFO". You can use exact match, contains, starts-with, or regex matching (regex available on Pro plan and above).

Will the same person get duplicate DMs?

Never. Lyncly's deduplication ensures each user gets exactly one DM per campaign, regardless of how many times they comment the trigger keyword.

Can I personalise the automated DM with the commenter's name?

Yes. Use {{first_name}} or {{username}} in your message template and Lyncly automatically replaces them with the commenter's real Instagram display name — making each DM feel personally written.

What happens if my post goes viral and gets thousands of comments at once?

Lyncly's Viral Protection™ and queue system handle this automatically. Comments are queued and processed in order, rate-limited to stay within Meta's API guidelines. No comments are missed — they're just delivered in sequence during high-volume spikes.

Does comment-to-DM automation work on Reels, carousels, and Lives?

Yes. Lyncly monitors comments on Instagram posts, Reels, carousel posts, and Lives. Story reply automation is handled separately via the story-replies use case.

Start turning comments into conversations

Start free. No credit card required.

Get started free