503 – Service Unavailable
This error is quite common when the web server is unable to handle a request due to either 1) Overloading or 2) The server is currently undergoing maintenance. It’s important to note that this is a TEMPORARY error and service will be returned to normal after some downtime.
Why am I getting it?
Some of the most common reasons for receiving a 503 error:
- Spiking traffic to the website
- Inadequate resources for the website
- (DDoS) Attack
- Automatic Updates going on in the background
How do I fix it?
These are the most common reasons for receiving this error message. If you are getting a message that has or has any relation to “DNS Failure” Then a simple router restart might do the trick. In the case of the issue being related to one of the “DNS Servers” then choosing a different one will solve this issue.
If this error is related to inadequate resources then you will need to upgrade to prevent any downtime due to overloading.