The verdict in three sentences
An African site hosted in Europe answers with a 300-600 ms TTFB from Dakar or Abidjan, which hurts SEO and conversion. Edge hosting or a CDN with points of presence in Lagos, Johannesburg or Nairobi brings that TTFB down to 50-120 ms. Beyond a certain traffic level, edge becomes profitable because every 100 ms gained is worth conversion points.
TTFB by location: why distance matters
TTFB (Time To First Byte) measures the time before the server returns its first byte. The farther the server is from the user, the more network latency piles up. For a Dakar visitor, here is the 2026 order of magnitude by origin location.
| Origin server location | TTFB from Dakar (2026 estimate) | Feel |
|---|---|---|
| Europe (Paris / Frankfurt) | 300-600 ms | Slow, noticeable |
| USA (east coast) | 400-700 ms | Very slow |
| Edge / CDN PoP Lagos | 60-120 ms | Fast |
| Edge / CDN PoP Johannesburg | 80-140 ms | Fast |
| CDN with local Dakar cache | 30-80 ms | Very fast |
| Pre-rendered static cache (edge) | 20-60 ms | Near instant |
The lesson: hosting "near the customer" or caching as close as possible to the African visitor divides TTFB by 4 to 8. Google factors speed into ranking, and Core Web Vitals (LCP, INP) collapse when TTFB explodes.
Provider and cost comparison 2026
Not all CDNs cover Africa the same way. Here are the common options and their 2026 price order of magnitude.
| Solution | Africa PoP | Monthly cost (estimate) | Best for |
|---|---|---|---|
| Shared Europe hosting | None | 5,000-15,000 FCFA | Small showcase site |
| Global CDN (Cloudflare/Fastly) | Lagos, Jo'burg, Nairobi | Free to 130,000 FCFA | Showcase + e-commerce |
| Edge functions (Vercel/Netlify) | Global edge network | 0-180,000 FCFA | Dynamic Next.js apps |
| Local VPS + CDN | Dakar/Abidjan | 60,000-200,000 FCFA | Strong local traffic |
| Pre-rendered (SSG) + edge | Edge network | 30,000-150,000 FCFA | Maximum speed |
When does edge pay off? As soon as local traffic is significant (a few thousand visits/month) or conversion matters (e-commerce, bookings). For a low-traffic blog, a free CDN in front of European hosting is often enough.
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Mini case study
Moussa runs an online store in Dakar with 8,000 visits/month and an average basket of 18,000 FCFA. His Paris-hosted site shows a TTFB of 480 ms and a conversion rate of 1.4 %, i.e. 112 orders = 2,016,000 FCFA/month.
He moves to a pre-rendered architecture behind a CDN with a Lagos PoP: TTFB drops to 90 ms. With an improved LCP, conversion rises to 1.8 % (a realistic gain documented for repeated −100 ms), i.e. 144 orders = 2,592,000 FCFA. Extra hosting cost: ~90,000 FCFA/month. Net gain: 576,000 − 90,000 = 486,000 FCFA/month.
FAQ
Is TTFB really an SEO factor? Yes, indirectly and directly. Google measures Core Web Vitals (including LCP, strongly correlated with TTFB) and a slow site loses rankings, especially on mobile and 3G/4G.
Free CDN or paid edge: where to start? Start with a free CDN (Cloudflare) in front of your current hosting: it often gives a 30 to 50 % TTFB gain without changing infrastructure. Paid edge is justified later if traffic and conversion demand it.
Does a static site change everything? A pre-rendered (SSG) site served from the edge can drop below 60 ms TTFB because there is no server compute per request, just a cached file served as close as possible.
What about low-connectivity areas? Edge cuts latency, but you must also optimize page weight (WebP images, lazy loading) and consider an offline-first PWA for dead zones.
How long to migrate to edge? Putting a CDN in front of an existing site takes a few hours; rebuilding to a pre-rendered + edge architecture usually takes 1 to 3 weeks depending on complexity.
Let's talk about your project. We measure your real TTFB and propose the most profitable edge architecture for your African visitors. 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.
