Web, domains and email
WAF
Abbreviation for Web Application Firewall
In short and in plain language
A WAF is a protective layer in front of a website. It checks the requests that come in.
It can filter out suspicious access. This can help to stop known kinds of attack.
But it does not replace updates and backups. If it is set too strictly, it can also block real visitors.
Definition
A WAF is a protective layer in front of a website that inspects incoming requests and can filter suspicious access. It can help to fend off known attack patterns but does not replace updates and backups. Set too strictly, it can also block real visitors.