The main purpose of a WAF or application firewall is to block attacks on your web. From those generated by brute force to XSS or SQL injections. In addition, in some cases it is an essential element to comply with eg PCI compliance. But one of the main reasons is to optimize the performance of your website and improve speed.
What a WAF must fulfill to optimize your website performance
To do this, there are some characteristics that must met you WAF in order to provide such optimization:
- The WAF must be configured in front of web applications (or the web) to detect and prevent attacks. This means that plugins with WAF function do not improve this factor to the same degree.
- You must have visibility of logs or records to have information about possible vulnerabilities to correct on your website.
- It should always be up and running.
That is, to reduce the response time of your website, in addition to the basic optimization tips, a WAF is ideal.
WAF configuration types
What does that mean in front of the web applications or your web? There are three types of settings for a WAF:
- WAF configured within your system: deployed within the server, hosting or web application. It can be implemented in different levels: in the operating system (for example, IDS / IPS), in the web server (for example Apache) or in the application (like WordPress). Here are WordPress plugins with WAF features.
- WAF configured external to your system or cloud: deployed in the cloud, outside the environment of your hosting. You can use it any website, and configure it through DNS doing that all the traffic that goes to your site passes by him to be verified. This way your site only receives licit traffic.
Why an external WAF helps you optimize your website speed
The requests that your system does not receive, download your website and therefore allow your resources to be dedicated exclusively to licit traffic. So if you want to optimize resources and reduce the load time of the web, this is the best option.
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