M for Mercury

Sniff

Search anything on social media instantly

What Sniff is

Sniff is a visitor identification tool in the B2B go-to-market stack. In the vendor's own words: “Search anything on social media instantly.” Put plainly, a tool in this category names the companies already visiting your site.

Sniff appears in 2 categories here — Visitor Identification, Social Listening — which usually means it covers more than one job rather than doing a single thing narrowly.

Where it sits in an outbound stack

Most outbound stacks are four layers: the data that decides who you talk to, the channel that carries the message, the writing that earns a reply, and the system of record that remembers what happened. Sniff sits in the visitor identification layer. Tools beside it are worth comparing on coverage and price; tools in the other layers are worth wiring to it rather than replacing it with.

Using Sniff with M for Mercury

Sniff covers a slice of go-to-market that sits next to outbound rather than inside it. Mercury handles the LinkedIn half: audience, journey, message, pacing across senders, and one inbox for every reply. Where the two meet is usually the hand-off — Mercury pushes contacts and events out over webhooks, Zapier, Make, n8n or its own API, so a warm reply can trigger whatever Sniff is set up to do next.

Questions people ask about Sniff

What is Sniff?

Sniff is a visitor identification tool used by B2B sales, marketing and recruiting teams. In the vendor's own words: Search anything on social media instantly.

What category does Sniff fall into?

Sniff is listed under Visitor Identification, Social Listening in this directory. Its primary category is Visitor Identification.

What are the alternatives to Sniff?

The closest tools in the same categories are Fastbase, VisitorQueue, Snitcher, Leadforensics, Liftcertain. All 30 visitor identification listings sit on the Visitor Identification category page.

Can I use Sniff alongside M for Mercury?

Yes. Mercury runs the LinkedIn side — audiences, journeys, message writing, safe pacing across every sender and one shared inbox — and connects out through HubSpot, Salesforce, Zoho CRM, Attio, Slack, Zapier, Make, n8n, webhooks and its own API, so Sniff can stay exactly where it is in the stack.

Listed for reference. M for Mercury is not affiliated with Sniff, and no listing here is paid for. Product names and logos belong to their owners.

The tools are the easy part. The sending is not.

Mercury runs LinkedIn outreach across every sender you own, paces each one inside limits LinkedIn tolerates, and puts every reply in one inbox.