How to calculate the real ROI of your website: Webflow design, development and SEO
In many companies, especially in the B2B sector, the website is still perceived as an expense. But a well-designed, optimized website built on modern technology like Webflow generates measurable results: more organic traffic, more leads, better conversion and less dependence on advertising. As an agency, we see this pattern repeated in multiple projects.
1. Why a website is an investment and not an expense
An expense does not generate direct return; a strategic website does.
When a site combines conversion-oriented design, SEO optimization, high performance and a solid CMS, becomes a commercial tool capable of attracting opportunities and reducing internal costs.
Many of our customers arrive with websites that are difficult to update, slow or without a clear structure. After redesigning the site, optimizing its content and migrating it to a more efficient platform such as Webflow, the results are usually seen in the first few weeks.
2. What is ROI and how is it calculated
The ROI (Return on Investment) is an indicator that allows us to know how much benefit an investment generates in relation to its cost. It's one of the metrics most used by CEOs, founders and marketing managers to make decisions.
The formula is simple:
ROI = (Generated Profit − Investment) /Investment
Example based on real projects:
- Investment in design, Webflow development and SEO optimization: €6,000—€8,000
- Additional income generated per year: €20,000—€35,000
If we take a conservative case:
ROI = (20,000 − 6,000) /6,000 = 2.3 → 23%
That is, for every 1€ invested, the company receives more than double in return.
3. Where does that return really come from
New leads generated (SEO + UX + content)
An optimized website can double your organic traffic in 6—12 months.
Typical example:
- Current traffic: 1,000 visits/month
- Conversion: 1%
- Current Leads: 10/month
After a conversion-oriented redesign, SEO improvements and a clear structure:
- Traffic: 2,000 visits/month
- Conversion: 2%
- New leads: 40/month
If each customer is worth €800 and the closing rate is 10%:
40 leads → 4 customers → €3,200 monthly → €38,400 per year
These increases occur especially in websites redesigned from scratch and developed with a modern CMS. In many projects, performance improves even more when we implement Webflow development, content optimization, and structural improvements.
Savings in maintenance and internal time
Many companies spend between €500 and €1,000 a month on simple changes.
When migrating to Webflow, that cost goes down because:
- There are no plugins to keep
- There are no updates required
- The CMS allows marketing to edit without depending on a developer
- New pages are created much faster
Estimated annual savings: €3,000—€8,000, depending on the volume of changes.
This savings increases when a redesign is also carried out and the site architecture is reorganized to reduce manual tasks.
Better performance = higher conversion
A 1-second improvement in upload speed can increase conversion by 5% to 17%.
In projects where we work on performance together with SEO, it's common to go from load times of 4—6s to less than 2s.
This has a direct impact on leads, forms and retention time.
Less dependence on paid traffic
Many companies operate with a model where between 60% and 90% of traffic comes from paid campaigns.
When organic positioning improves, this expense can be reduced by 20% to 40% without losing commercial opportunities.
This is usually achieved by combining:
- Technical and on-page SEO
- conversion-oriented redesign
- Optimized content
- a more efficient platform like Webflow
4. Full ROI example based on real cases
Total investment:
Complete redesign + Webflow development + initial SEO optimization: €6,000—€8,000
Average impact after 3—6 months:
- Organic traffic: Before 800/month - then 1,600/month (+100%)
- Conversion: Before 0.8% - after 1.7% (+112%)
- Leads/month: Before 6 - after 27 (+350%)
- New customers/month: Before 1 - after 3 (+200%)
- Monthly income: Before €1,200 - then €3,600 (+€2,400)
Additional income per year:
€28,800 — €40,000
Estimated ROI:
360% — 480%
These results are based both on real metrics from our clients and on public market data on performance, SEO and conversions.
Conclusion
A website is not an operating expense. It's an asset that can multiply revenues when it's well-designed, designed to convert, and backed by strong technology like Webflow. Companies that redesign their site, optimize their content and improve their SEO often see a significant return in a matter of months.
When design, development and SEO work together, the web becomes a key part of business growth. And when built on a modern, fast and flexible platform, that impact multiplies.
If you need us to help you calculate the ROI of your next website Contact us
