How One Shopify Agency Increased Retention 34% With White-Label Accessibility

I came across this post on Reddit last month—and it described exactly what we help agencies do at TestParty every day.

A Shopify agency owner shared their experience adding accessibility services to their offerings. The results were striking—and the playbook they described is exactly what we offer our agency partners at TestParty: we handle the technical accessibility work, they manage the client relationship, and they keep the margin.

Here's the original post, lightly edited for readability:

The Pattern Nobody Talks About

What struck me about this post wasn't the 34% retention increase—though that's remarkable. It was the mechanism of how the agency lost those clients in the first place.

Three clients asked about accessibility. The agency didn't offer it. They referred out to consultants. Those consultants charged five figures for audits, then upsold ongoing services. Within months, all three clients had effectively switched agencies.

The consultants didn't steal these clients through better design work or superior Shopify development. They just answered a question the agency couldn't.

This is why we built TestParty's agency partnership. We've watched this pattern play out dozens of times. Agencies lose clients not because they did anything wrong, but because they couldn't answer one question. Our partnership exists specifically to make sure that never happens—you get to say "yes, we offer that" and keep the client relationship intact.

This is happening constantly. We talk to agencies every week who've lost clients to accessibility consultants, legal firms offering "compliance packages," or overlay widget salespeople who promise quick fixes. The pattern is always the same: client has an accessibility need, agency doesn't have an answer, someone else does, relationship erodes.

The Math That Changed Their Mind

Let's look at the numbers from this agency's experience:

The Loss:

• 3 clients churned after being referred to outside consultants
• $72,000 in annual recurring revenue lost
• That's roughly $24K per client per year, or $2K/month—reasonable for a Shopify agency handling brands in the $2-10M range

The Recovery:

• Added accessibility as a white-labeled service
• Charges $1,500/month per client
• Time investment: ~3 hours per client monthly
• Upsold 5 of 8 existing clients (62.5% attach rate)
• New monthly revenue: $7,500
• Annualized: $90,000 in new recurring revenue

The Hidden Win:

• 2 new clients acquired specifically because the agency now offers accessibility
• 34% improvement in overall client retention

So this agency went from losing $72K annually to adding $90K+ annually—a swing of over $160K—by adding a single service line that takes 3 hours per client per month.

One commenter in the Reddit thread noted that "$500 margin seems low but retention boost is the real value, acquiring new clients costs way more than $500 monthly." They're right. The direct revenue from accessibility services is almost beside the point. The real value is defensive: you're no longer hemorrhaging clients to outside specialists.

Another commenter mentioned they "partnered with TestParty for this exact model—they handle technical stuff and we manage client relationships. Works perfectly." That's literally the service we built.

Why This Works

A few things make accessibility particularly effective as an agency service expansion:

1. It's recurring by nature.

Accessibility isn't a one-time project. Sites change constantly—new products, new landing pages, seasonal campaigns, theme updates. Every change can introduce new accessibility issues. This creates natural ongoing value, not just a project you have to resell every quarter.

2. The alternative is genuinely expensive.

Those consultants charging $15-25K for audits aren't price gouging. Manual accessibility audits are labor-intensive. A thorough WCAG 2.2 AA audit of a mid-sized e-commerce site can take 40-80 hours of specialist time. That's why white-labeling makes so much sense for agencies—you get access to tooling and expertise that would take years to build internally.

3. Clients are actively looking for this.

The Reddit poster mentioned three clients asked about accessibility "within like the same month." That's not coincidence. ADA demand letters targeting e-commerce sites have increased dramatically. The European Accessibility Act went into effect in June 2025. Brands are getting pressure from legal, from procurement, from their own customers. If you're in the room when the question comes up, you want to have an answer.

4. It creates switching costs.

Once you're managing a client's ongoing accessibility compliance—scanning their site, fixing issues as they arise, providing documentation for their legal team—you're deeply embedded in their operations. That's a very different relationship than "we redesign your site every 18 months."

The Objection I Hear Most

When I talk to agency owners about our white-label partnership, the most common pushback is: "We're not accessibility experts. We don't have that skillset in-house."

That's the whole point. You don't need to be.

The Reddit poster specifically mentioned they "found a way to white label it." They're not personally auditing sites against WCAG success criteria. They're not learning how to use screen readers. They're partnering with a company like TestParty that handles all the technical work—the auditing, the code fixes, the ongoing monitoring—while they manage the client relationship and handle deployment.

At TestParty, we've built this model specifically for agencies. We do the accessibility remediation. We push code fixes as pull requests. Your team reviews and merges. You bill the client. That's it.

Their actual time investment is reviewing fixes and merging code—about 15 minutes to 3 hours per client monthly depending on how hands-on they want to be. That's account management, not accessibility consulting.

One commenter asked: "How technical do you have to be to review fixes? We're a marketing agency not developers, and we are worried about deploying code we don't understand."

We get this question constantly. The answer: not technical at all. Our white-label partnership is designed specifically for non-technical agencies. We push clean pull requests with clear descriptions of what each fix does. You're reviewing changes, not writing code. If you can deploy a theme update, you can deploy our accessibility fixes. We also offer a fully managed option where we handle deployment entirely—you just approve and we push.

What Actually Changed

Reading between the lines of the Reddit post, here's what I think actually happened at this agency:

Before: Accessibility questions were a threat. When clients asked, the agency had to admit they couldn't help and refer out—essentially introducing a competitor into the relationship.

After: Accessibility questions became an upsell opportunity. Same question, completely different dynamic. Instead of "sorry, you'll need to find someone else for that," it's "yes, we offer that—here's how it works."

That shift—from vulnerability to strength—is worth way more than the direct revenue from the service itself.

The 34% retention improvement isn't because accessibility services are magic. It's because the agency closed a gap that was actively costing them clients.

The Uncomfortable Question

If you run an agency, here's what I'd ask yourself:

When was the last time a client asked about accessibility, and what did you tell them?

If the answer is "we referred them to someone else" or "we told them to buy an overlay widget," you might be in the early stages of the same pattern this Reddit poster experienced. The client relationship didn't end the day they asked about accessibility. It ended months later, after the outside consultant had become their trusted advisor on a critical compliance issue.

The Reddit poster lost $72K before they realized what was happening. They were lucky—they figured it out after three clients, not ten.

A Note on Overlays

One thing the original poster got right: they didn't recommend an overlay widget.

If you're not familiar, overlay widgets are JavaScript tools that claim to make websites accessible by adding a toolbar that lets users adjust fonts, colors, and other display settings. Companies like AccessiBe and UserWay sell these as quick fixes for accessibility compliance.

The problem is they don't actually work—at least not for legal protection purposes. Overlays have been specifically excluded from settlement agreements in recent ADA lawsuits. Plaintiff's attorneys actively target sites using overlays because they're easy to identify and indicate the site owner knows they have an accessibility problem but chose a cosmetic fix over real remediation.

If a client asks about accessibility and your answer is "install this widget," you're not solving their problem. You might actually be making it worse.

The Reddit poster found a partner that does actual code-level fixes—changes to the site's source code that address accessibility issues at their root. That's exactly what TestParty does, and it's the only approach that provides real legal protection and genuinely improves the experience for users with disabilities.

We've helped agencies just like the one in this Reddit post add accessibility to their service offerings. The model works. The math works. And you don't need to become an accessibility expert to offer it.

The Bottom Line

This Reddit post is a case study in a business model shift that more agencies should consider.

The poster went from:

• Losing clients to outside accessibility consultants
• Zero revenue from accessibility services
• Reactive posture when clients asked about compliance

To:

• 34% higher client retention
• Five-figure monthly recurring revenue from a new service line
• Two new clients acquired from differentiation
• Proactive offering that strengthens every client relationship

The total swing was six figures annually. The time investment was about 15 minutes to 3 hours per client per month. The technical expertise required was zero because they white-labeled the hard part.

This is exactly what we do at TestParty. We partner with Shopify agencies to add accessibility as a service line. We handle the technical work—auditing, remediation, ongoing monitoring. You handle the client relationship. You keep the margin.

We work with agencies ranging from 5-client shops to 50+ client portfolios. Some white-label completely (their clients never hear our name). Others do referral partnerships. Either way, the economics look a lot like what this Reddit poster described: double-digit retention improvements, five-figure monthly revenue additions, and six-figure annual impact.

If you're running an agency and you've ever lost a client—or felt a client relationship weaken—because of an accessibility question you couldn't answer, we should talk.

Michael Bervell is the Founder and CEO of TestParty, an AI-powered accessibility platform for e-commerce brands. TestParty partners with Shopify agencies to offer white-label accessibility services—we handle the technical remediation, you keep the client relationship and margin. Before TestParty, Michael worked as an accessibility consultant at Google. You can reach him at michael@testparty.co.

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