Squarespace is a fine first website. It runs the v1, gets the founder to first conversations, and costs almost nothing to maintain. Then one day the constraints stop being charming and start being expensive.
The four signals
- You are paying for SEO that the platform fights you on
- Your blog is a content channel and the editor is slowing the team down
- Performance is capped no matter what you do
- You want a design system that lives between marketing and product
What the migration costs
At Altair Studio, a 10 to 20 page Squarespace-to-Next.js migration starts with a one-week positioning sprint (EUR 2,000, credited in full against the build), then a fixed-price build shipped in two to three weeks: EUR 9k to 12k for a multi-page site, EUR 16k to 22k with a full CMS. That includes a redesign; no one rebuilds Squarespace pixel-for-pixel.
The SEO part
The migration that preserves rankings keeps URL structures where they perform, sets up 301s where they do not, ports the existing structured data, and submits a fresh sitemap on cutover day. Done well, the move protects the rankings you have, and the faster site gives them room to grow.
If Webflow is the other option on your list, the Next.js vs Webflow comparison covers where each one stops. For the full offer, see SaaS website design, and for a product built on this stack, the Krust case study.
If you are evaluating a website redesign for your startup and not sure whether to rebuild on Squarespace or migrate, book a 15-minute call. I will tell you what I would do in your seat.