# Protocol Anomalies

Prophaze WAF can detect request with the following protocol anomalies

* Request without Valid Host Header&#x20;
* Request without Valid Accept Header
* &#x20;Request header with null value&#x20;
* Invalid User-Agent header&#x20;
* User-Agent without value&#x20;
* Request with Content contains no Content-Type header
* &#x20;Host Header with IP Address
