Lead source attribution for lead generation
See which channels, ads, and keywords bring good leads, from forms, calls, and chats, and send them back to your ad platforms.
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Used by 750+ teams that grow through leads
Questions you hear every week
Every lead gen team gets asked these. Pick one to see your answer.
From click to good lead
Forms, calls, and chats arrive with their source, junk is filtered out, and the good leads teach your ad platforms who to find next.
The source
Multi-touch attribution on a single first-party dataset. Switch between first-touch, last-touch, and multi-touch models in one click to see which ad, keyword, and campaign drove each lead, and put cost per qualified lead next to cost per form fill on every channel.
Cost per qualified lead · Last 30 days
Qualified| Channel | Cost/lead | Qualified | CPQL |
|---|---|---|---|
 Google Ads | $11 | 61% | $18 |
 Meta | $9 | 38% | $24 |
 LinkedIn | $28 | 61% | $46 |
 Microsoft | $12 | 57% | $21 |
 Email | $4 | 52% | $8 |
The call
A lot of lead gen still happens on the phone. Connect CallRail, CallTrackingMetrics, Invoca, or Mediahawk and every inbound call becomes an attributed lead, matched to the caller's web journey, with the recording attached.
(415) 555-0142 · Inbound call
4m 12s · recording attached
Google · CPC ·
brand_search The quality check
The channel that fills your forms is rarely the one that brings customers. Every lead is marked Good, Not a fit, or Spam as it lands, by your rules or by Ask AI. Add every cost, from ad spend to agency fees, and see what a good lead really costs on each channel.
The ad platforms
Send only Good leads, with their value, to Google Ads, Meta, Microsoft Ads, and ChatGPT Ads from our server, with click IDs and hashed details matched per platform, so bidding learns from leads that convert.
Qualified leads pushed back
Google Ads 2,140 Live Meta CAPI 1,820 Live 
ChatGPT Ads 400 Live 
Microsoft Ads 260 Live LinkedIn CAPI Coming soon AI for your lead gen team
Connect SourceLoop and your assistant reads your ad accounts, leads, and lead quality. Ask in plain words and get the same numbers as your reports.
Customer stories
From agencies and SaaS companies to clinics and law firms, teams use SourceLoop to trace every lead and every dollar back to the campaign that earned it.
We run paid media for 14 clients. Every lead now lands in their CRM with the campaign, keyword and ad behind it, so we can prove our impact with numbers clients can check for themselves.
We started sending only qualified demos back to Google Ads as conversions. Within six weeks, paid search was filling our calendar with buyers who fit our ICP, and close rates followed.
Half our new patients book by phone. Multi-touch attribution on every call showed us which ads start a booking and which ones close it, so we cut the two channels that did neither.
Most of our leads showed up as Direct in the CRM. SourceLoop now gives us the full journey behind every inquiry, chat and call, from the first search to the booked consultation.
FAQ
Connect CallRail, CallTrackingMetrics, Invoca, or Mediahawk and every inbound call becomes an attributed lead alongside your form and chat leads. SourceLoop matches the call to the caller's web session, so the phone lead carries the same source, campaign, and journey as a form fill. Calls from offline sources still record, tagged as Direct.
Yes. SourceLoop captures UTM parameters, GCLID, fbclid, and msclkid on the first visit and keeps them on the visitor through the whole session, so each lead carries the exact ad, campaign, and keyword that produced it, not a rounded-off channel guess.
Every lead is marked Good, Not a fit, or Spam the moment it arrives, by rules you set (budget, company email, service, call length) or by Ask AI reading the answers. Your CRM status updates it later. Reports then show cost per good lead, counting every cost, not just ad spend, so you see which channels produce leads that close versus channels that just produce volume.
Yes. Send Good leads and won deals, with their value, to Google Ads, Meta, Microsoft Ads, and ChatGPT Ads from our server, so smart bidding optimizes toward leads that convert. Spam never gets sent.
Yes. Forms, live chat, phone calls, meeting bookings, and payments all land in one model. Install one snippet, connect your lead sources, and every lead type is attributed on the same first-party dataset, no per-channel reconciliation.
Capture and send full attribution data from every signup, lead, booking, and sale to your CRM and ad platforms, so you know exactly what's driving revenue.
Without SourceLoop
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With SourceLoop
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