VPS Uptime SLA Explained: What 99% Uptime Really Means

Understand VPS uptime SLAs, what 99% means in real downtime minutes, how to claim SLA credits, and what to look for in a hosting SLA.

2026-02-11 7 min read Amsterdam, Netherlands

What is a VPS Uptime SLA?

A Service Level Agreement (SLA) is a contract between a hosting provider and customer that defines guaranteed service quality levels. For VPS hosting, the most important SLA metric is uptime — the percentage of time your server is operational and accessible.

An uptime SLA is a provider's formal commitment to keep your server running. It specifies what compensation you receive if they fail to meet the guarantee.

What 99% Uptime Really Means in Downtime

SLA Uptime	Monthly Downtime	Annual Downtime
100%	0 minutes	0 hours
99.9%	~43 minutes	~8.7 hours
99%	~7.2 hours	~3.65 days
98%	~14.4 hours	~7.3 days

Our Netherlands VPS plans guarantee 99% uptime — meaning a maximum of 7.2 hours downtime per month is the contractual limit for SLA credit eligibility. In practice, our AMS1 data center infrastructure rarely approaches this limit thanks to N+1 redundancy.

What Counts as Downtime?

SLA-eligible downtime is typically defined as infrastructure-level failures: data center power issues, network outages, hardware failures. The following generally do not count toward SLA:

Scheduled maintenance windows (announced in advance)
Issues caused by your own software or configuration
Network issues outside the provider's control (upstream carriers)
DDoS attacks on your IP address

How to Claim SLA Credits

Our SLA credit schedule (from our Terms of Service):

Monthly Uptime	Credit
98%–99%	10% of monthly fee
94%–97.99%	25% of monthly fee
Below 93%	50% of monthly fee

To claim: submit a support ticket within 7 days of the downtime incident through your client area at client.host4fun.com. Include the date, time, and duration of the reported downtime.

How We Achieve High Uptime at AMS1

Our Amsterdam datacenter achieves high uptime through multiple redundancy layers: N+1 UPS power systems with diesel generator backup, N+1 precision cooling (CRAC units), multiple physical network paths to AMS-IX, and 24/7 on-site monitoring and management.

Deploy Netherlands VPS with 99% Uptime SLA

AMS1 Amsterdam, N+1 redundancy, from $3/month

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Frequently Asked Questions

99.9% is considered excellent for most VPS providers. 99% is standard and acceptable for most use cases. Anything below 99% should give you pause. Our Netherlands VPS has a 99% SLA backed by N+1 redundant infrastructure at AMS1 Amsterdam.

No. Most providers, including us, require you to request SLA credits by submitting a support ticket within a specified window (typically 7 days) of the downtime event. Credits are applied to your account balance.

First, check if it is a known issue by submitting a ticket at client.host4fun.com. If it is infrastructure-level downtime, our team addresses it as a priority incident. You can request SLA credit once the issue is resolved.

No. Scheduled maintenance announced in advance does not typically count toward SLA downtime calculations. We provide advance notice for any planned maintenance that affects service availability.

For most websites and applications, yes. 99% uptime means a maximum of ~7 hours downtime per month. For critical business applications requiring higher availability, consider redundant infrastructure or backup VPS solutions.