Imagine you’re throwing a party. You’ve spent weeks planning the perfect evening, hired a great DJ, and set out an incredible spread. You send invitations to all the contacts in your phone — every name you recognize. But when the night arrives, you look out over your backyard and realize: beyond the fence, a crowd has gathered. They’re curious, interested, and ready to join, if only they had a way in.
For years, digital marketing has operated within that fence. Platforms like Klaviyo have given us powerful tools to organize, automate, and personalize communications for the guests we already know. But what about everyone else — the high-intent browsers who never fill out a form, the returning visitors on a new device, the shoppers who slip away before you even know they were there?
This is the “reach” problem that’s quietly limiting performance for brands of every size. And in 2026, the brands that win aren’t just the best hosts, they’re the ones who find ways to open the gate.
The Hidden Majority
You don’t have to dig far into your analytics to spot the problem. On average, only about 30% of your website visitors are known, reachable, and marketable inside Klaviyo. The rest — a whopping 70% — are anonymous. They see your products, linger over your offers, maybe even drop something in their cart… but unless they’re identified, your best-crafted campaigns never reach them.
It’s not a failure of creative or strategy. It’s a shift in how people move online: more privacy controls, more device-hopping, more anonymous shopping. Old tools like third-party cookies expire. Consent and compliance are now part of every brief. Yet the need to grow revenue from your owned channels has only intensified.
Why “Performance” Isn’t Just a Numbers Game
Marketers love to talk about performance: open rates, click rates, triggered revenue. But here’s the uncomfortable truth: even the sharpest optimization is just tuning the engine, not expanding the track. If you’re only messaging the 30% of visitors you can identify, every gain is incremental, not exponential.
That’s where identity resolution comes in. And this is where the Wunderkind + Klaviyo partnership rewrites the script.
The “Invisible Crowd” Becomes Addressable
Wunderkind acts like the world’s best party host: not only remembering every guest, but recognizing their friends, plus-ones, and anyone who’s shown up at your door — even if they’re in disguise. The technology matches anonymous site visits to real, permissioned profiles, using behavioral signals, device data, and privacy-compliant identifiers. Suddenly, those “beyond the fence” visitors become real people you can invite into your Klaviyo-powered flows.
The impact?
- More cart abandoners receive a nudge before they forget you
- Win-back campaigns reach lapsed buyers who would have vanished
- Personalization actually means something — because it’s based on a larger, richer audience, not just the repeat crowd
For some brands, this has meant an 8X increase in triggered email revenue and a 6X lift in on-site identification rates, without having to rewire their marketing stack or add complexity to their day-to-day work.
The New Reach: It’s Not Just Bigger, It’s Smarter
But this isn’t just a numbers game. Expanding your reach isn’t about sending more messages to more people; it’s about making every message more meaningful, every engagement more relevant. When you can recognize a greater share of your audience in real time, you can trigger communications in the moments that matter: when shoppers are considering, comparing, or ready to convert.
Consider Quad Lock, a brand in the mobile accessories space. With much of their web traffic previously unreachable, they turned to Wunderkind’s identity resolution to bridge the gap. The result:
- A 71% incremental lift in reach
- 42% incremental revenue growth from messaging
- Over 17x return on ad spend (ROAS)
And they did it all with their existing Klaviyo flows — just reaching more of the right people at the right time.
The Magic Is in the Seamless Experience
What makes this partnership truly transformative isn’t just the technology, it’s the fact that marketers don’t need to learn new tricks or overhaul what’s already working. Wunderkind operates quietly in the background, enriching your Klaviyo audience, feeding your best campaigns, and letting you keep full creative control.
The process is nearly invisible:
- Wunderkind recognizes more visitors across devices, sessions, and privacy changes
- Those new profiles flow directly into Klaviyo, where they’re eligible for your best-performing campaigns
- You see more revenue, higher engagement, and better results from the work you’re already doing
No fences, no friction. Just more of your real audience joining the party.
The Takeaway for Marketers: The Future of Performance Is Expansive
The challenge for brands in 2026 isn’t just about doing more with less; it’s about thinking bigger about what’s possible. Performance and reach are now two sides of the same coin. When you expand the share of your audience you can actually see and engage, every investment in creative, strategy, and technology goes further.
With identity resolution at the heart of your marketing stack, every campaign becomes a growth lever. And with partnerships like Klaviyo and Wunderkind working in concert, the gates are wide open — for your brand, your team, and every customer you have yet to meet.
Curious how much more your campaigns could deliver if your “invisible crowd” was finally addressable? Let’s find out together.
