Stop Paying For
Customers You
Already Have
Boost acquisition ROAS with segmented audiences and targeted marketing strategies.
See what you're wasting
No account required · 30 seconds
Customer Segments – Live Sync
Auto-sync every 24h
| Segment | Customers | Suggested action |
|---|---|---|
| ACTIVE | 8,432 | Exclude from acquisition |
| AT RISK | 1,247 | Retention campaign |
| DORMANT | 3,891 | Re-engagement campaign |
| LOST | 2,104 | Win-back campaign |
Google Ads
LIVE
Updated 2h ago
Meta Ads
LIVE
Updated 2h ago
TikTok
LIVE
Updated 2h ago
YouTube
LIVE
Updated 2h ago
Connected via official Google Marketing Platform and Meta Business APIs
Salesforce
Automatic customer database sync
HubSpot
Automatic customer database sync
Klaviyo
Automatic customer database sync
Trusted by startups and enterprises
We optimize
your growth
E-Commerce
Stop retargeting customers who already purchased. Sync your Shopify or WooCommerce customer list and exclude them from acquisition campaigns automatically.
SaaS Companies
Exclude existing trial and paid users from prospecting campaigns. Kernel identifies them across email variants and phone numbers your ad platform won't catch.
Agencies
Manage audience exclusions for multiple clients from a single API. Deliver measurable ROAS improvements by stopping budget waste across all managed accounts.
Cut the waste,
scale what matters.
How Kernel Works
Connect your CRM
Salesforce, HubSpot and all major CRMs supported. No manual export needed.
Step 1
Data Ingestion
Import your CRM — email, phone, name, city
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Step 2
Identity Resolution
Recognises the same customer across different data points
hover to reveal
No customer slips through
Different emails, misspelled names, shortened numbers — Kernel matches them all to the same person.
Your data stays yours
Emails and phone numbers are encrypted before leaving your infrastructure. Platforms never see the raw data.
Step 3
SHA-256 Hashing
Personal data encrypted before transmission
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Step 4
Segmentation Engine
Every customer is automatically classified
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Exclude who you already know
Kernel decides who to suppress from campaigns and who is worth re-engaging — automatically.
Active
Purchased recently.
Exclude from acquisition.
Exclude from acquisition.
These customers just bought. Showing them acquisition ads wastes budget and annoys them. Kernel automatically adds them to exclusion lists across Google, Meta and TikTok so every euro goes to new prospects only.
At Risk
Engagement dropping.
Retention campaign.
Retention campaign.
Engagement is dropping but they haven't left yet. This is the window to act. Kernel routes them into retention campaigns — personalized offers based on their purchase history, before they go silent.
Dormant
Inactive 90–180 days.
Re-engagement.
Re-engagement.
It's been a while. A generic ad won't cut it. Kernel targets them with re-engagement messages — 'we've missed you' offers, loyalty incentives, or a nudge based on what they last browsed.
Lost
Gone 180+ days.
Win-back or suppress.
Win-back or suppress.
They're gone. Flooding them with acquisition ads burns budget on people unlikely to convert. Kernel either suppresses them entirely or routes them into a low-cost win-back campaign as a last attempt — or excludes them entirely to protect your ROAS.
Step 6
Ad Platform Sync
All segments pushed as exclusion lists
Google Ads
Customer Match
LIVE SYNC
Meta
Custom Audiences
LIVE SYNC
TikTok
Custom Audiences
LIVE SYNC
€240K/mo
Ad budget protected
3
Companies in pilot
€69K/mo
Waste eliminated
94.2%
Match rate
The Kernel effect —
real numbers
What happens when companies stop wasting budget on customers they already have.
ROAS Improvement
Return on Ad Spend — Before vs After Kernel
+38%
4x3x2x1x
Before Kernel
After Kernel
2.1x
Avg. before
2.9x
Avg. after
+38% uplift
Simulated scenario · based on industry benchmarks
Budget Recovery
Ad spend reclaimed from waste
€23K
recovered monthly · simulated scenario based on €80K/mo spend
Existing customers re-targeted
29%
Before Kernel
down 25pp
Existing customers re-targeted
4%
After Kernel
How recovered budget is reinvested
100%
reinvested
New acquisition
50%
Retargeting (dormant)
25%
Creative testing
15%
Platform expansion
10%
Average ROAS uplift
+38%
simulated · first 60 days
Budget waste eliminated
-29%
of total ad spend recovered
New customer reach
+1.4x
wider qualified audience
All figures are simulated scenarios based on industry benchmarks — not derived from live customer data.
Ready to stop wasting
your ad budget?
Join companies saving thousands per month with precision audience exclusions.