The verdict in three sentences
A one-page site (2,000-5,000 EUR) is enough to validate a positioning or a single offer; a multipage site (6,000-15,000 EUR) becomes essential once SEO and scalability matter. The 2026 rule: one page = one search intent, so more pages = more captured keywords. Choose one-page to move fast, multipage to build a durable acquisition asset.
Comparison of the two formats
The ranges below are 2026 orders of magnitude for a French B2B SME, excluding advanced features.
| Criterion | One-page | Multipage |
|---|---|---|
| Indicative budget | 2,000-5,000 EUR | 6,000-15,000 EUR |
| Delivery time | 3-4 weeks | 5-10 weeks |
| Indexable pages / URLs | 1 | 8-15 |
| SEO potential | low | high |
| Scalability | limited | strong |
| Ideal for | single offer, event | durable acquisition |
SEO and conversion impact
The number of URLs drives the number of keywords you can rank for. A one-page concentrates everything on a single URL; a multipage spreads intents.
| Indicator (2026 estimate) | One-page | Multipage |
|---|---|---|
| Realistic target keywords | 3-8 | 30-80 |
| Ad landing pages | 1 | several |
| Average B2B conversion rate | 1-2% | 2-4% |
| Cost per lead (trend) | higher | lower over time |
| Content / blog addition | difficult | native |
Mini case study
Karim, head of an industrial-services SME in Toulouse, is hesitating. A one-page at 3,500 EUR launches his offer in a month. A multipage at 9,000 EUR targets 40 keywords. Over 12 months, the multipage generates about 60 organic leads versus 12 for the one-page. At an average 800 EUR margin per qualified lead, the 48-lead gap represents 38,400 EUR of extra pipeline: the 5,500 EUR premium is paid back by the second month of SEO results.
FAQ
Need a professional website?
Kolonell builds websites that attract clients, optimized for the Sénégalese market. Free quote in 2 minutes.
Is one-page bad for SEO?
Not bad, but limited: a single URL can only rank for a narrow set of keywords. For a single offer or an event, it remains relevant and profitable.
Can we start one-page then migrate to multipage?
Yes, if the agency plans a scalable architecture from the start. Otherwise migration often equals a rebuild: anticipate it in the initial quote.
Which format converts better?
Multipage usually converts better in B2B because it reassures (references, method, team) and targets precise intents. One-page excels at a single, direct conversion.
Is a multipage budget justified for a micro-business?
If your acquisition relies on organic search, yes. If you live on word of mouth and social, a polished one-page can suffice.
How many pages for a good B2B site?
A base of 6 to 10 pages (home, offers, references, method, about, contact, blog) covers most acquisition needs in 2026.
Let's scope your project. Tell us your SEO ambition, budget and the offers to highlight: we will recommend the most profitable one-page or multipage format for you. 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.
