The verdict in three sentences
For a seed or Series A B2B SaaS startup, rebuilding the Webflow site (8,000 to 15,000 EUR in France, 12,000 to 25,000 USD in London, Berlin or New York) improves the brand without always unlocking sales. A custom Next.js site with a clear pricing page, use case pages by industry, documentation and product integration (free trial, demo booking) costs 18,000 to 35,000 EUR, or 25,000 to 70,000 USD in the major hubs. The measurable stake is moving from 1 to 3% visitor-to-trial conversion, which triples pipeline without buying a single extra visitor.
Rebuilt Webflow, custom Next.js or a growth marketer
Founders in Shoreditch, Kreuzberg or Flatiron often reach the same conclusion: the site was built in three weeks before the raise, the messaging has changed twice since, the pricing page is vague and sales reps send PDFs for lack of dedicated pages per audience.
| Criterion | Rebuilt Webflow | Custom Next.js | Growth marketer hire |
|---|---|---|---|
| Cost 2026 | 8,000 to 15,000 EUR (12,000 to 25,000 USD) | 18,000 to 35,000 EUR (25,000 to 70,000 USD) | 55,000 to 75,000 EUR gross per year (90,000 to 140,000 USD in NYC) |
| Timeline | 4 to 6 weeks | 8 to 12 weeks | 2 to 3 months to hire |
| Pricing page with calculator | Limited | Full, connected to the product | Depends on existing tool |
| Use case pages by industry | Manual, one by one | Generated from a headless CMS | Written if the site allows |
| Built-in documentation | Separate subdomain | Same domain, design and SEO | No |
| Free trial or demo in the flow | Outbound link to the app | Embedded signup, event tracking | No |
| Performance (Core Web Vitals) | Good, with limits | Excellent, full control | No |
The growth marketer and the website are not alternatives. Without a site that can launch and measure tests quickly, a growth marketer costing 70,000 EUR a year spends part of their time working around tool limitations.
The pages that move conversion from 1 to 3%
Visitor-to-trial conversion depends mostly on offer clarity, industry proof and signup friction.
| Page or module | Role in conversion | Indicative budget 2026 | Expected effect (order of magnitude) |
|---|---|---|---|
| Pricing page with comparison and FAQ | Remove the price objection without a sales call | 2,500 to 5,000 EUR | +0.3 to 0.6 point |
| 4 to 6 use case pages by industry | Show the product in the visitor's trade | 4,000 to 8,000 EUR | +0.4 to 0.8 point |
| Public documentation and guides | Long-tail SEO and technical reassurance | 3,000 to 7,000 EUR | Organic traffic +20 to 50% over 12 months |
| Embedded trial signup | Cut steps from 6 to 2 | 2,000 to 4,000 EUR | +0.3 to 0.5 point |
| Qualified demo booking | Route enterprise accounts to sales | 1,500 to 3,000 EUR | Demo show-up rate +15% |
| A/B tests and event tracking | Measure and iterate monthly | 1,500 to 3,500 EUR | Cumulative gains over time |
| Competitor comparison pages | Capture "X alternative" searches | 2,000 to 4,000 EUR | Highly qualified prospects |
Next.js brings a concrete advantage here: use case pages, documentation and blog share the same components and content base, and trial signup can call the product API directly, with no redirect that kills completion rates.
Total budget and 12-month return
| Item | Rebuilt Webflow | Custom Next.js |
|---|---|---|
| Design and development | 12,000 EUR | 28,000 EUR |
| Subscriptions and hosting per year | 1,200 to 2,500 EUR | 600 to 2,400 EUR |
| Maintenance and improvements per year | 3,000 EUR | 6,000 EUR |
| Total year 1 | 16,200 to 17,500 EUR (about 17,500 to 19,000 USD) | 34,600 to 36,400 EUR (about 37,500 to 39,500 USD) |
| Visitor-to-trial conversion targeted | 1.3 to 1.8% | 2.5 to 3% |
| Delivery time | 4 to 6 weeks | 8 to 12 weeks |
The custom premium is justified once traffic exceeds a few thousand visitors per month and customer value is high. Below that, a well-rebuilt Webflow remains a reasonable choice.
Mini case study
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Kolonell builds websites that attract clients, optimized for the Sénégalese market. Free quote in 2 minutes.
Julien, founder of a scheduling SaaS for construction firms, gets 8,000 visitors per month and converts 1% to trial, i.e. 80 trials. 15% become customers at 4,800 EUR annual revenue, i.e. 12 new customers and 57,600 EUR of ARR added per month. Moving to 2.5% conversion thanks to the pricing and use case pages, he gets 200 trials and 30 customers, i.e. 144,000 EUR of ARR added per month. Even with a cautious 2% assumption, the 57,600 EUR monthly ARR gain pays back a 32,000 EUR site in less than one month of new signings.
FAQ
Should we leave Webflow for Next.js?
Not always. If your traffic is below 3,000 visitors per month and marketing edits pages on its own, a rebuilt Webflow at 8,000 to 15,000 EUR is enough. Next.js becomes relevant when you need product integration, documentation on the same domain or hundreds of generated pages.
Can marketing edit pages without a developer?
Yes, with a headless CMS such as Sanity or Storyblok, the team edits copy, use cases and pricing independently. Plan 1 to 2 days of training included in the project.
How long until conversion improves?
First effects on the pricing page and signup show within 2 to 4 weeks. To reach 3%, plan 3 to 6 months of monthly A/B tests after launch.
Can we show public pricing if we also sell to enterprises?
Yes, the most common format shows 2 or 3 priced plans plus an "Enterprise" plan on request. Startups that publish prices often see 20 to 30% more demo requests, and better qualified ones.
Can the site be multilingual?
Yes, each additional language usually adds 15 to 25% to the budget, translation included. On Next.js, language routing and hreflang tags are native.
Let's scope your project. Share your current traffic, trial conversion rate and priority segments: we price a Next.js site between 18,000 and 35,000 EUR, delivered in 8 to 12 weeks. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
