Moving an established marketing website to a new platform can quickly become a major undertaking. There is content to migrate, functionality to preserve, design details to recreate, redirects to configure, and countless opportunities for something small...but important...to get lost along the way.

When we decided to move Blitzrocks.com from HubSpot CMS to Vercel, we completed the process in just four weeks. We did have an important advantage to consider: we were not redesigning the website or reconsidering its entire structure. Our goal was simply to retain the existing design and information architecture while recreating the site on a more flexible, developer-friendly platform. We also used the migration as an opportunity to refresh portions of the content and improve how the website could be managed going forward.

Even with that head start, the project reinforced an important lesson about AI-accelerated development: AI can dramatically increase the speed of delivery, but it does not eliminate the need for technical expertise, creative judgment, thoughtful implementation, or detailed quality assurance.

Why We Moved to Vercel

HubSpot CMS had given our marketing team an established environment for managing the Blitz website. Moving away from it meant giving up some built-in content management conveniences, so the decision could not be based on hosting alone.

We wanted an architecture that would give us greater flexibility over how the website was built, deployed, optimized, and expanded. Vercel gave our development team a more modern foundation while supporting the speed and performance expected from a product-focused technology company like Blitz.

Among the benefits were:

• Streamlined deployment workflows: Vercel can automatically deploy from a connected Git repository whenever code is committed or a pull request is opened.

• Preview environments for collaboration: Each deployment can receive its own URL, allowing developers, marketers, and creative stakeholders to review changes before they reach production.

• Global content delivery: Vercel’s CDN handles routing, caching, compression, and delivery across a globally distributed network.

• A flexible ecosystem: Vercel can connect with CMS platforms, analytics tools, databases, AI services, and other supporting technologies as a website’s needs evolve.

The move gave us more control over the website as a digital product, not simply a collection of pages managed inside a traditional CMS.

Rebuilding the Website With Claude Code

We used Claude Code to help accelerate the recreation of the existing website. Because the design and site structure were already established, AI could assist with translating what existed into reusable components and rebuilding pages much faster than a completely manual process would have allowed. That acceleration was significant. Seeing the website take shape so quickly demonstrated just how much AI-assisted development can compress certain parts of a project.

But the process was not as simple as asking an AI coding tool to reproduce the site and then publishing the result. Some components did not transition perfectly. A section might be structurally correct but behave differently at a certain screen size. Spacing could be slightly off. Typography might not match the original design precisely. An image could be cropped differently, or a reusable component might work well on one page but not another.

These differences were sometimes subtle, but subtle details matter when recreating an established brand experience. That is why our Creative team remained closely involved throughout the project. AI helped us move faster, but Creative provided the visual judgment required to determine whether the result actually felt like Blitz.

AI Accelerated the Build—Not the Responsibility

One of the biggest misconceptions about AI development tools is that they remove the need for careful implementation and review. Our experience was the opposite.

Because AI allowed us to produce working pages quickly, the team could spend more time refining the experience. However, every page still required deliberate review. We still needed to check every link and navigation path, page layouts across different screen sizes, fonts, spacing, colors, and formatting, and so on. QA could not be treated as a quick final pass. It had to be incorporated throughout the project. 

One of the biggest takeaways for my team was that AI can generate something that looks complete, surprisingly quickly...but looks can be deceiving. That makes disciplined review even more important, because a result that appears finished at first glance may still contain dozens of small inconsistencies.

Replacing the Administrative Side of a CMS

The front end was only part of the migration. HubSpot CMS gave our marketing team the ability to manage website content without relying on developers for every routine update. If we moved to Vercel without recreating that administrative flexibility, we would have improved the development environment while making the marketing workflow more difficult. That was not an acceptable tradeoff.

As part of the new implementation, we created administrative tools that enable the marketing team to manage critical website information without involving IT directly. These capabilities may not be visible to a website visitor, but they were essential to the project's success. A modern marketing website must work for two audiences: the people visiting it and the internal team responsible for maintaining it.

Moving from a traditional CMS to Vercel, therefore, required more than reproducing the visible website. We had to identify the CMS capabilities our team depended on and intentionally build an editing experience around those needs.

What the Four-Week Timeline Really Means

Recreating and migrating Blitzrocks.com in four weeks was an exciting result. It showed how quickly an experienced team can move when an established design, modern development platform, and AI-assisted workflow come together.

But the timeline should not be interpreted as evidence that website migrations have become effortless. We were able to move quickly because:

• The design and site structure were already defined.

• We had technical expertise guiding the implementation.

• Creative specialists reviewed the visual execution.

• Marketing helped determine the administrative requirements.

• The team performed detailed QA.

• We had a clear strategy for what should remain the same and what should improve.

AI amplified the work of that team. It did not replace it.

AI = Leverage, Not Magic.

This experience really highlighted that AI creates the most value when it is paired with the right people and the right process. Claude Code accelerated component development and reduced the amount of repetitive work involved in recreating the site. Vercel gave us an efficient platform for deployments, previews, performance, and future development. Creative protected the quality of the brand experience. Marketing ensured the finished system remained practical to manage. QA made sure the website worked beyond the most obvious use cases.

AI did not remove the need for expertise, strategy, creativity, or attention to detail. It increased the amount that an experienced team could accomplish within a four-week window. That is the opportunity we see in AI-accelerated development: not instant software, but dramatically faster progress when strong tools are combined with strong execution.

The move from HubSpot CMS to Vercel gave Blitz a more flexible foundation for its website. Just as importantly, it gave our team a real-world example of what modern delivery can look like—fast, collaborative, AI-accelerated, and still deeply human-led.

About the Author

Christina Kaney is Growth Director at Definity, where she leads growth, marketing, and brand initiatives across both the Definity and Blitz brands. She is responsible for shaping go-to-market strategy, messaging, content, digital experiences, and campaigns that support business growth.