Most reliable web hosting, by real uptime
Every provider ranked on uptime we actually measured, not the "99.99%" on their sales page. Right now Hostinger leads at 100% over 30 days, and the tracked average is 99.94%. Uptime is one of the four pillars behind every HostingTweaks score.
| # | Provider | Uptime (30d) | Uptime (90d) | Reliability score | |
|---|---|---|---|---|---|
| 1 |  Hostinger | 100% | — | 100/100 | Review |
| 2 |  FastComet | 100% | — | 100/100 | Review |
| 3 |  Cloudways | 100% | — | 100/100 | Review |
| 4 |  DigitalOcean | 100% | — | 100/100 | Review |
| 5 |  Vultr | 100% | — | 100/100 | Review |
| 6 |  RunPod | 100% | — | 100/100 | Review |
| 7 |  Hostwinds | 100% | — | 100/100 | Review |
| 8 |  UltaHost | 100% | — | 100/100 | Review |
| 9 |  Hosting.com | 100% | — | 100/100 | Review |
| 10 |  DreamHost | 100% | — | 100/100 | Review |
| 11 |  SiteGround | 100% | — | 100/100 | Review |
| 12 |  Namecheap | 100% | — | 100/100 | Review |
| 13 |  InterServer | 100% | — | 100/100 | Review |
| 14 |  ScalaHosting | 100% | — | 100/100 | Review |
| 15 |  TMDHosting | 99.99% | — | 100/100 | Review |
| 16 |  Linode | 99.98% | — | 100/100 | Review |
| 17 |  InMotion Hosting | 99.98% | — | 100/100 | Review |
| 18 |  Verpex | 99.97% | — | 100/100 | Review |
| 19 |  Hetzner | 99.93% | — | 99/100 | Review |
| 20 |  Contabo | 99.86% | — | 99/100 | Review |
| 21 |  HostArmada | 99.85% | — | 98/100 | Review |
| 22 |  GreenGeeks | 99.8% | — | 98/100 | Review |
| 23 |  IONOS | 99.79% | — | 98/100 | Review |
| 24 |  Kamatera | 99.71% | — | 97/100 | Review |
| 25 |  ChemiCloud | 99.62% | — | 96/100 | Review |
Reproducible data · verified August 16, 2026
method: scheduled uptime probes
HostingTweaks — "Web Hosting Uptime Leaderboard 2026", as of August 16, 2026. https://hostingtweaks.com/reliability-index Every figure maps to a row in our public catalog and is re-checked on a schedule. Free to cite with attribution.
Measured uptime, not marketed uptime
Every host advertises 99.9%. The number that matters is the one nobody prints: the uptime you actually get. We poll every provider's live infrastructure on a fixed schedule from our own monitors and publish the rolling result — including the bad months.
That's the whole difference between this table and an SLA page: an SLA is a promise with fine print; this is a measurement with a timestamp.
What separates reliable from lucky
- The 90-day column matters more than the 30-day one — anyone can have a quiet month.
- Small differences compound: the gap between 99.9% and 99.5% is about 35 hours of downtime a year.
- Pair uptime with the reliability score, which also weighs how a host behaves under load — up isn't the same as usable.
Uptime FAQ
How is uptime measured?
We poll each provider's live site on a fixed schedule from our own monitors and record every check. The percentages here are the share of successful checks over the rolling window — real measurements, not the provider's advertised SLA.
Why isn't everyone at 100%?
Because these are measured, not marketed. Short blips, maintenance windows and slow responses all show up. A provider sitting at 99.9%+ over 90 days is genuinely reliable; a marketing page claiming 100% tells you nothing.
Is higher uptime always better?
It's necessary but not sufficient — pair it with performance (our benchmark index) and value. A fast, cheap host that's frequently down is a false economy; that's why reliability is a full pillar of the HostingTweaks score.