Override expressions

Set an override expression for the HTTP DDoS Attack Protection managed ruleset to define a specific scope for sensitivity level or action adjustments.

For example, you can set different sensitivity levels for different request URI paths: a medium sensitivity level for URI path A and a low sensitivity level for URI path B.

​​ Available expression fields

You can use the following fields in override expressions:

• cf.client.bot
• cf.threat_score
• http.cookie
• http.host
• http.referer
• http.request.uri
• http.request.uri.path
• http.request.uri.query
• http.request.full_uri
• http.request.method
• http.request.version
• http.request.cookies
• http.user_agent
• http.x_forwarded_for
• ip.geoip.asnum
• ip.geoip.continent
• ip.geoip.country
• ip.geoip.is_in_european_union
• ip.src
• ssl
• cf.tls_client_auth.cert_verified

Refer to Fields in the Rules language documentation for more information.