Defaults.Exposed › Country › Luxembourg
How secure are Luxembourg's business domains?
Most businesses in Luxembourg use a .lu domain. Across 53,091 of them, here's how their security stacks up — aggregate patterns only, never an individual business. As of 2026-06-28.
We use .lu as a stand-in for Luxembourg, based on the domain's ending rather than where a company is legally registered — so a Luxembourg business on a generic ending like .com isn't counted here.
Grade distribution
| Grade | Domains | Share |
|---|---|---|
| A+ | 0 | 0% |
| A | 39 | 0.1% |
| B | 736 | 1.4% |
| C | 4,022 | 7.6% |
| D | 10,964 | 20.7% |
| F | 37,330 | 70.3% |
See exactly where your own Luxembourg domain ranks — free and private → Check your domain. Or browse .lu in detail and the most & least secure TLDs.