What is Uptime?
The percentage of time a proxy network is available and operational. seamless guarantees 99.9% uptime across its network.
Uptime refers to the gateway and the network behind it, not to any individual IP. Residential addresses come and go constantly as consumer devices connect and disconnect; the network is up as long as it can always hand you a working one.
The figure is less informative than it looks, because 99.9% still permits around 43 minutes of downtime a month. What matters more in practice is the success rate on your actual targets, which no availability number captures.
Test against your own workload before committing volume. A gateway that answers every request is still useless if the addresses behind it are blocked by the site you need.
Related terms
Proxy Pool
The total set of IP addresses a provider can assign. A larger, more diverse pool means lower detection rates and better success at scale.
Latency
The time it takes for a request to travel through a proxy to the target and back. Lower latency means faster responses; ISP and datacenter proxies achieve under 50ms.
Sticky IP
An IP address that remains assigned to your session for its duration, as opposed to rotating on each request.
Bandwidth
The volume of data transferred through a proxy, usually measured in gigabytes. Residential proxies are typically billed by bandwidth.