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Website Replatforming
Agency
Zero SEO ranking drops across 20+ migrations to Next.js and Sanity
Pagepro is a website replatforming agency for tech-driven companies that have outgrown their CMS.
We run headless CMS migrations, take AI-built apps to production and support your site after launch.
Official Sanity & Vercel Partner.
BUILT FOR TEAMS THAT HAVE OUTGROWN THEIR STACK
Stuck on a legacy CMS
Your current platform was the right choice three years ago. Now it's slowing editorial velocity, hurting Core Web Vitals, and making every campaign harder than it needs to be.
You know you need to move. The risk of doing it wrong is what's stopping you.
Outgrowing low-code or no-code
You built fast with the tools available. Now you're hitting the ceiling: performance, customization, scalability.
You need a proper engineering foundation without starting from zero or losing what's working.
Taking an AI-built app to production
The app works in a demo. But the code is unstable, under-documented and not ready for real users or real traffic.
You need someone who can take it over, stabilize it, and build on it reliably.
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Three engagements.
One specialist team.
Most clients work with us in one of three ways: fixed-scope migrations, a two-week takeover guarantee, or a monthly SLA with guaranteed capacity. Senior-led from day one.
Replatforming with Nexity
Full replatforming of content-heavy, SEO-driven sites from WordPress, monoliths and legacy stacks. SEO preserved, Core Web Vitals improved, content team finally unblocked, without the overruns typical of generalist agencies.
Production-Ready in 2 Weeks
Built an app with AI tools that is not ready for real users? Our agents assess the code, then we fix the critical issues and deploy it, guaranteed in two weeks. If we miss the deadline, we finish the critical fixes at no extra cost to you.
Continuous Development & Support
Monthly support and continuous development for production Next.js & Sanity applications. Every month, your platform gets faster, more stable and easier to build on, not the other way round.
Our deepest specialisation
Replatforming
Done right
Your rankings and traffic move with you - GPnotebook's organic traffic doubled within two years of its migration.
Migration is where the risk is highest - SEO loss, content lock-in, fragile redirects, broken Core Web Vitals.
Rankings carried over.
URL parity audits, 301 redirect mapping and structured data preservation keep your rankings. Your redirects stay editable in Sanity Studio after launch.
No content lock-in.
Your content moves 1:1 into a structured model in Sanity that your editors run without developers. The code is yours too.
Fast and AI-ready at launch.
Every replatformed site launches with Core Web Vitals targets and structured data, so search engines and AI answer engines can read and cite it.
Choose Your
Migration Path
We move your content to Sanity, a structured headless CMS, and your front end to Next.js, in one replatforming or one part at a time.
"The best thing about working with Pagepro is that you guys are always learning, you always taking time to do professional development and (...) you bring back to the table things that make sense to our project"
Adam Harvey, CEO Proofed
"Pagepro was one of the most professional and organized vendors I've worked with."
Fractional CMO, Finvisor · Clutch review
"Their project management, customer relations, and development skills are top-notch."
Executive, Learn Squared · Clutch review
Nexity: Our Proprietary Framework
Nexity is Pagepro's proprietary Next.js + Sanity migration framework, built from 20+ production projects.
Other agencies start your project from scratch. We don't. Here's what that means for you:
WHAT YOU GET WITH NEXITY | WHAT YOU RISK WITHOUT IT |
About 70% faster delivery than building from scratch: proven architecture, ready from day one | Months of setup time billed to you before real work begins |
48h live demo with your content, before any commercial commitment | Generic demos that tell you nothing about your actual project |
Zero SEO ranking drops across 20+ migrations: redirects and metadata handled by default | Rankings lost to redirect errors and missing metadata post-launch |
Content editors independent from day one: no dev dependency after handoff | Editors still raising tickets for copy changes weeks after launch |
No reinventing the wheel: solved problems stay solved across every project | Same architectural decisions made (and charged for) from scratch each time |
Official Sanity & Vercel partner: a senior team that ships this stack on every project | Working with a team that's still figuring out the stack on your timeline |
Need an expert's advice?
Let's talk
about your project
Case Studies
Get the most from a team with a proven track record
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GPnotebook
Scaling a 100K+ Page Medical Platform with Next.js & Sanity
Over 100,000 clinical reference pages — from a legacy platform to Next.js and Sanity.
SEO rankings preserved through full URL parity and 301 redirect mapping.
Core Web Vitals improved across the site.
The editorial team fully independent of engineering for daily content updates.
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Finvisor
From WordPress to Next.js & Sanity: An AI-Ready Site With Guardrails Built In
WordPress to Next.js and Sanity, live 8 weeks after kickoff.
~950 URLs kept working, with zero downtime at launch.
Mobile Core Web Vitals went from fail to pass.
Marketing builds pages in Sanity, and Claude builds new sections through reviewed pull requests.
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Learn Squared
Migrating an outdated e-learning platform from Drupal to Jamstack
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Proofed
MVP development for the leading professional proofreading and editing services company
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Toolbox
Front-end development for web app MVP with React for insurance company
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Colony
UX and UI Overhaul of Blockchain's App with React.js
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Localcoin
Migrating Wordpress Website to Jamstack for the financial technology company.
HOW A PROJECT STARTS
STEP 1:
Intro Call
We understand your project, your stack, your goals, and your timeline. We share relevant case studies and give you a ballpark. No sales theatre, just a direct conversation about whether we're the right fit.
STEP 2:
Free Assessment
A free assessment of your site and requirements. You get a Project Concept document: your current situation, your desired outcome, our proposed approach and a fixed price. Nothing moves forward until you've approved the concept.
STEP 3:
Proposal
A detailed written proposal. We present it live if possible. If not, we record a walkthrough video. You see exactly what you're buying before you sign anything.
STEP 4:
Delivery & Partnership
Project delivery with regular updates, clear milestones, and direct access to the team. Post-launch, most clients stay on an SLA retainer for ongoing development.
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Why Choose Pagepro
Narrow expertise. Wide impact.
Next.js, Sanity, Vercel - that's the stack we ship. Our developers are senior in this ecosystem rather than generic React contractors. Nexity is the proof: a framework you can only build by doing this work over and over.
Confirmed by Sanity Official Partner & Vercel Official Partner status
Process, methodology, judgement.
AI writes code now. The hard part is everything else: architectural decisions, migration sequencing, knowing what to ship and what to cut. Our delivery method is the part of the work that compounds - documented patterns, transparent collaboration, and senior judgement on the choices that actually matter.
Confirmed by 92% client retention
Top-rated for a reason.
Clients work with us once, then come back. The Clutch profile tells the same story across 34 detailed reviews.
4.9 Clutch Score, averaged across all client reviews.CTO-level conversations from day one.
Our CEO and CTO are in your discovery calls, our seniors are in your sprints. Communication is direct and honest, including when something isn't going to plan.
Confirmed by NPS of 90
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WORK WITH SPECIALISTS. DELIVER WITH CONFIDENCE
Frequently Asked Questions
What is website replatforming?
Website replatforming means moving a site to a new platform: a new CMS and front end, a new content model, migrated content, full URL parity and 301 redirects. A move to a new host or domain on the same platform is a website migration; see our website migration services.
Will my SEO survive a replatforming to a headless CMS?
Yes. SEO parity is built into every replatforming as a default, not as an add-on: a URL parity audit, full 301 redirect mapping, structured data preservation and Core Web Vitals targeting.
Our flagship migration moved 100,000+ pages of GPnotebook clinical content to Next.js and Sanity, and organic traffic doubled within two years. If your current platform is hurting Core Web Vitals, the migration is typically also a measurable performance lift.
What does a website replatforming cost?
Engagements are fixed-scope and predictably priced, with no hourly billing on the scoped work. The price of a Nexity replatforming is fixed after a free assessment, based on page count, integrations and design complexity.
You get a ballpark on the first intro call. After the free assessment, you get a fixed price and a Project Concept document, and nothing moves forward until you sign it off.
How long does a website replatforming take?
A website replatforming with Nexity ships a production-ready foundation in 4 weeks: content migrated, core journeys working, editors trained. The full project takes longer when you need custom integrations or advanced features; we scope those as the next phase after launch, so the total time depends on your site.
What makes Pagepro different from a generalist migration agency?
Three things. First, our core stack is Next.js, Sanity and Vercel, with no long tail of stacks diluting expertise.
Second, our delivery runs on Nexity, our proprietary framework, so we don’t re-solve architectural problems on your timeline.
Third, our CEO and CTO are in the discovery calls and our senior engineers are in the sprints, with no offshore handoff after sign-off. Confirmed by 92% client retention and a 4.9/5 rating on Clutch.
How does a migration to a headless CMS work?
We model your content in the headless CMS, migrate it with scripts, rebuild the front end in Next.js, map every old URL to a new one with 301 redirects and train your editors. With Nexity, a production-ready foundation ships in 4 weeks.
We use Sanity as our main CMS because its structured content lets non-technical teams edit without developer help. If a different CMS fits your project better, the intro call will tell you.
Have a project?
Let's Talk About it!
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Tell us more about your project
Please provide detailed information about your challenge, and our tech team will promptly review your submission. Expect to hear from us within 24 hours with tailored next steps and insights based on your request.
Book a Meeting With Our CEO
Upon receiving your form, we typically recommend a briefing meeting with our CEO to explore the specifics of your project. Schedule your meeting now to kickstart a tailored approach.
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Chris Lojniewski
CEO & CGO