Slingshot Bio
Roboto converged Slingshot Bio's WordPress and Shopify sites into one headless Shopify build on Next.js and Sanity, instrumented end to end and AI-ready.
View case study
From Contentful to Sanity
We are the Contentful to Sanity migration experts
Last verified:
The process
How we migrate from Contentful to Sanity
- 01
Access and gating audit
First we check the existing Contentful and see whether the data is clean enough to move straight over to Sanity, and plan around any auth walls or bot protection in the way.
- 02
Rendering assessment and extraction
Then we work out how Contentful renders its pages and pull the content out, even without CMS access.
- 03
AI-assisted sanitization
Everything extracted runs through our sanitization pipeline, which flags slop, normalizes structure, and leaves us clean content to work with.
- 04
Content-model design with the client
Before anything moves, we agree the Sanity content model with you, shaped around how your editors actually work.
- 05
Transform and soft-migrate
We transform the content to the agreed schema and run a full dry run, so mappings and edge cases prove out before production.
- 06
Execute the real migration
Once the dry run is clean, everything moves into Sanity in one controlled cutover.
- 07
Redirect mapping and throttled sitemap submission
Every old URL gets mapped to its new home with the right redirect, so rankings and link equity survive the move.
- 08
Agentic-browser QA
Finally, automated browsers sweep the new site for data issues, design regressions, and missing SEO signals.
- Ready when you are. We'll bring the moving boxes.Start my migration
Challenges with Contentful
Key pain points
Contentful is one of those platforms where the bill can catch you off guard. The free tier caps you at 25 content types and 100K API calls, and a single marketing site can blow past both without warning. The next step up is $300 a month, and enterprise pricing often lands in the $50K to $100K+ a year range.
The pattern teams keep hitting is the same: the jump is forced by one limit, not by needing the bigger feature set. The content type cap alone can push you onto a higher plan you don't otherwise need.
The other issue is that Contentful has strong opinions about how content should be modelled, and those opinions aren't always documented. Projects built without that knowledge tend to accumulate performance problems and awkward workarounds. Before writing Contentful off, speak to us, a lot of the pain we see is implementation, not platform.
Pricing climbs fast
Contentful isn't a cheap CMS. Once you pass the free tier's content type or API call limit, you're on the $300/month Lite plan, and enterprise pricing often starts at $50K+ a year.
Complex for non-technical users
Marketers and editors may need a small learning curve before they feel at home. It’s powerful but not always plug-and-play.
Integration dependency
A lot of magic happens through third-party tools. Great for flexibility, but it does mean extra setup instead of getting everything out-of-the-box.
Limited native features
Contentful keeps the core CMS clean and minimal, but that also means more building and configuring to get advanced functionality.
Learning curve for new teams
If your team is moving from a traditional CMS, expect some onboarding time. Structured content is amazing but new for many.
Requires careful management
Because it’s so flexible, projects need good governance. Without it, content models can get messy and harder to maintain over time.
Benefits of Sanity
Key advantages
You know where our bias' lies. We think Sanity is literally the best headless content management out there. The schema is code-based, so it can be easily versioned, scaled, and extended without a heap of third-party hoops to jump. Providing you build it with a solid foundation, which we always recommend Turbo Start Sanity, it's going to be the most valuable hub for content you can imagine.
It's got a very unique tooling called the Live Content API, which in simple terms means
when you press publish, its live.
No issues with caching, and a single API usage that scales perfectly with multichannel content delivery.
It also offers one of the best editorial experiences in the industry with Presentation and customizable content structures. We're obviously huge fans of it, and we've pivoted our business with it when we realised how ahead it is.
Real time collaboration
You write, your teammate tags in, adds citations, and updates the same doc without stepping on each other. It’s the fastest way to ship content without the "who has edit access?" chaos.
Live preview block building
With Sanity, you don’t have to guess what your page might look like. Real-time previews update the moment you type. It’s a 1:1 mirror of your site before it ever goes live, so your campaigns look right the first time.
Meta tags, structured content
Sanity’s structured content gives Google clean data and rich schema, so your pages surface higher without manual hacking. Automated schema, smarter metadata, and better rankings.
Better media management
A blazing-fast media library with first-class support for Cloudinary, Mux, Wistia and more. Upload, drag-and-drop, preview without wrestling with assets, and waiting for spins of doom.
Automated social sharing
Ever wanted to share one update, and automatically populate every social platform? Welcome to the future we've built that. Why should social media be a chore.
Automated image generation
Sanity keeps your subject centred and sharp like a tiny author thumbnail or a full-page hero banner. There are no awkward crops, or chopped heads. Your visuals just look right everywhere.
Common questions
Contentful to Sanity migration FAQs
Answers to the most common questions about Contentful to Sanity migration
Contentful has a Free tier with 10 users, 100K API calls per month, 25 content types, and 10,000 records. The Lite plan is $300/month for 20 users, 1M API calls, and 100GB CDN bandwidth. Enterprise is custom pricing with unlimited API calls and an uptime SLA of up to 99.99%. We've seen teams hit the free tier's API ceiling or content type cap fast, and the jump to Lite is often forced by a single limit rather than a feature need.
The migration is step one. Our Sanity team handles what comes after: builds, integrations and the content model work that keeps the new platform clean.
Sanity development agencyNot sold on moving? Sometimes the platform is fine and the build is the problem. We also fix Contentful sites in place.
Contentful development agencyGet in touch
Tell us what you're building. We reply within one working day. Jono or someone on the team picks up every message personally.
