France pairs a thin ownership layer with an aggressive acquisition market. On the .fr active-domains book, hosting-relationship concentration — hosting competitors only, with CDN, SaaS-builder and DNS-infrastructure actors excluded — is an HHI of 2,040, about 4.9 effective owners of the customer relationship, and the single largest control-plane actor alone accounts for 35.1% of the book. What that ownership does not buy is a quiet front door. The market word is hébergement.
“Concentration” is three different questions, and they have three different answers. Hosting-relationship HHI (2,040) measures economic market power — who owns the customer relationship — counting hosting competitors only. Hosting-infrastructure HHI (1,587) measures where the workloads actually run. Control-plane HHI (1,594) measures the combined ecosystem, and deliberately includes CDN, SaaS-builder and DNS-infrastructure actors alongside hosting groups.
Read as market power, France runs on about 4.9 effective owners of the customer relationship; read as infrastructure, the same book spreads across about 6.3 effective hosting infrastructures — a 1.3× gap between who runs the servers and who holds the contract: the market is thinner at the contract than at the rack. Shares follow the same split: the top three owners hold 64.7% of customer relationships, while the top three infrastructures carry 52.5% of the workloads, and on the wider control plane — which also counts CDN, SaaS-builder and DNS actors — the top three come to 56.4%.
Holding the installed base is not the same as owning the next customer. At least 3 ownership groups hold page-one positions on the hosting terms we track, 80% of tracked storefronts acquire on teaser pricing, and the price the average French customer meets (€1.86/mo) sits below the storefront median (€2.00) — the largest platforms are buying acquisition, not harvesting it.
All three readings are drawn from the .fr active-domains book (1,617,742 active domains) and are ownership-folded — a lower bound. Each reading is renormalised over its own actor set. How the bands and the three readings work.
Across the 609,062 active French business sites whose pages we measure and fingerprint: 27.0% carry e-commerce tooling, 43.4% run analytics, and 5.6% sit on a detected website builder. Off the web layer, 9.5% of the full French book runs modern hosted email.
Presence, not billing; the builder share is a floor. How technology detection works.
Of the 1,780,966 mail-carrying business domains, 90.0% publish SPF but only 32.2% do so with a spoof-rejecting hard fail. 47.7% publish DMARC — 6.3% with an enforcing p=reject, 33.5% monitoring-only p=none, both shares of the same mail-carrying book, so enforcement reaches 14.2% of it. Adoption is not enforcement. How to read email posture.
Across 10 tracked French storefronts, the median entry-tier price is €2.00/mo ex-VAT. Weight the same storefronts by how many businesses each platform actually serves and the price the average French customer meets is €1.86/mo — below the storefront median: among the storefronts we price, which together hold 31.9% of this market's hosting relationships, the larger platforms price below the field.
— a floor, since storefronts that never disclose a renewal price sit in the denominator.
The median measured renewal cliff in France is 4.3× — the typical teaser storefront re-prices 4.3-fold at the first renewal — and the steepest measured cliff in the market is 5×. Renewal visibility is better than the storefront count suggests: among the storefronts we price, which hold 31.9% of this market's hosting relationships, those serving 60.1% of captured French customer relationships publish their renewal price on the page. Per-operator price ladders are in the product.
The tracked set represents 67.8% of the French control-plane customer relationships. Price snapshot 2026-09-14; prices are captured on their own cadence. How prices are captured, normalised and suppressed.
French businesses search hébergement, and the storefronts answer in French: mutualisé, nom de domaine, hébergeur. An English-language page competing on “hosting” is not in this market's vocabulary at all.
Measured from French storefronts, sized by how many providers use each term.
The two terms buyers search most: hébergement / hébergeur. How this is measured.
Every figure here is queryable through the HostingBrain connector, free tier. In Claude or any MCP-compatible assistant, this is the whole page in one prompt:
“Using HostingBrain, describe the France hosting market: how concentrated is it — give me the actor-pure hosting-relationship HHI and effective owners for market power, and the hosting-infrastructure and control-plane readings beside it, ownership-folded — how large is the active-domains book, what do businesses run (CMS / e-commerce / builder adoption), what does entry shared hosting cost and how steep are renewal cliffs, and what is the SPF/DMARC posture? Keep it aggregate-level.”
Ask the follow-up yourself. HostingBrain answers questions like this — with the date, denominator and caveats attached — inside Claude and any MCP-compatible assistant. Named provider shares and per-operator price ladders are on Pro.