How to reach out after a viral post?
Last updated 25 October 2026
Reaching out after a viral post requires a specific approach, and HeyLead helps you detect this activity to start conversations. A sudden spike in engagement gives you a clear reason to contact someone. When a prospect receives high visibility, they are often active and ready to reply.
What the viral post signal is
The viral post signal indicates that a person's post is drawing far more engagement than usual. This specific event originates from a person's own activity on LinkedIn. It is attached to 1 person rather than an entire company.
HeyLead is an AI agent for LinkedIn outreach: it finds the right people, writes to them in the voice of your own LinkedIn posts, follows up, and handles replies. It runs from Claude Code, Cursor, any MCP client or a web dashboard.
Why this signal matters
Catching a spike in attention helps you prioritize who to contact today. HeyLead watches 40+ signal types, scored, matched to your ICP and expiring. A strong signal starts outreach and the opener says why now.
The viral post signal carries a weight of 0.45 in HeyLead's score. Scores run from -0.30 to 0.90, and a negative score lowers priority. This specific signal raises priority but does not write the invite note.
Finding these posts manually takes time. HeyLead re-reads the profiles and posts of people in your campaigns and searches LinkedIn for your keywords.
What to write to the author
Your message must focus on their content. Open with what they did, such as the post, the move, or the comment. Put this in 1 sentence about it. Then ask 1 question they can answer in writing. You must include no pitch in the first message.
Before an invitation, HeyLead warms up: a profile view, a follow, a comment on a recent post. An invitation with a note, an opening message, up to 2 follow-ups on Free and 5 on Pro, InMail and email fallback.
Replies are read, classified and answered from the campaign's facts; anything ambiguous is held for you; "not now" gets a check-in in 30 days. Opening messages, follow-ups and answers to replies wait for your approval until you switch to autopilot; invitations, not-now check-ins and meeting nudges are not held.
The brief to type into HeyLead
You type a 1-sentence brief in Claude, Cursor, ChatGPT or the HeyLead dashboard. 1 sentence creates a draft campaign; nothing is sent until you press Launch.
It works in Claude Code, Cursor, Claude Desktop and claude.ai, any MCP client and a web dashboard; in ChatGPT as a custom MCP app. Tested on ChatGPT Pro; custom apps depend on your ChatGPT plan and settings.
There are 6 campaign goals: sell a product or service, find a job, hire people, find partners or investors, find a vendor, research interviews. Hire people, find partners or investors and research interviews work with a custom brief. It reads your own LinkedIn posts to learn your voice and never posts unless you ask for a post.
Find marketing directors in London who had a viral post this week and ask them how they manage the sudden influx of comments.Limits and requirements
The viral post event expires after 7 days, giving you a short window to act. You can run this from the cloud with your laptop closed. The client's source is on GitHub under MIT; the hosted backend is not.
Free costs 0 for 1 connected account with 2 follow-ups. Pro costs 29 a month per connected account. HubSpot is the CRM it syncs with. Google Calendar is the calendar it books into.
Questions people ask
How long does the viral post signal last?
It expires after 7 days.
Does this signal write the invitation note?
No, it raises priority but does not write the note.
What is the weight of this signal?
It has a weight of 0.45 in HeyLead's score.
Where does this signal come from?
It comes from a person's own activity on LinkedIn.
HeyLead sends from your own LinkedIn account at a human pace: at most 20 invitations a day and 100 a week on a free LinkedIn account (more on Premium or Sales Navigator: a newly connected paid account starts at 20 a day and doubles each week up to its limit), Monday to Friday 08:00 to 22:00 in your time zone, minutes apart. It backs off when LinkedIn pushes back and resumes on its own. You can pause any campaign at any time.
HeyLead is not affiliated with LinkedIn. It reaches LinkedIn through Unipile, which is also not affiliated. LinkedIn's own rules are in the Terms.
Set up HeyLead using https://heylead.dev/llms.txt