After the actual test page that a user opens endurance time it is within 2 seconds, able to endure the wait time up to 8 seconds. 8 seconds is considered to be a peak, all sites open faster than this time, few users could bite off it estimated.
Site opens speed There are many factors that speed, the more important is the high availability of the server, can be understood as a percentage of website uptime, industry quantify the availability of more than 9, most often said "four nines (ie 99.99% ) "availability.
Glossary: SLA is an acronym for the English Service-Level Agreement, that service level agreements, referring to the mutual recognition agreement between the service provider and the quality of service customers reached. Indicate the level of public cloud and provide quality services, such as monthly 99.95% SLA, monthly service time means a failure only 0.05% of the total time, if this month is 30 days, it is 21.6 minutes.
Ali cloud recently announced the latest cloud server ECS service level agreement SLA, availability of single-instance increased from 99.95 to 99.975 percent, more than the available area to enhance the availability of multi-instance from 99.99 to 99.995 percent, are the world's highest standards.
See more of the official documentation .
The following comparison in tabular form the major cloud service SLA criteria:
99.995% availability means an annual downtime of about 26 minutes, ahead of other manufacturers. SLA agreements for manufacturers is very careful, because it involves compensation for the customer, if there is not enough technical support is unable to make such a commitment and security.
Single Instance compensation scheme:
multi-instance compensation scheme:
the stability and speed will not mean the loss of customers, put more costs on the stability and speed are very worthwhile. Whether it is personal or business owners, it can be considered as a cloud Ali cloud server.
