Variables

These variables are available inside both match expressions and extract expressions.

Request variables

Variable	Type	Example	Description
Host	string	example.com	Request host, without scheme or port
Path	string	/shop/product/42	Request path, always starts with /
Query	string	ref=email&lang=nl	Raw query string, without the leading ?
Method	string	GET	HTTP method, always uppercase
Scheme	string	https	http or https
Ip	string	1.2.3.4	Client IP address
IsReturningVisitor	bool	true	Whether the visitor has a known marker cookie

Dictionary variables

These are case-insensitive dictionaries accessed with the [] indexer. Accessing a missing key returns an empty string — it does not throw.

Variable	Description
QueryParams	Parsed query string parameters
Headers	Request headers
Cookies	Request cookies

QueryParams["lang"]      // "nl"
Headers["User-Agent"]    // "Mozilla/5.0 ..."
Cookies["session"]       // "abc123"

Geo variables

Geo information is resolved from the client IP via MaxMind GeoIP. If the IP cannot be resolved (private ranges, unknown IPs), both values are empty strings.

Variable	Type	Example	Description
Geo.Country	string	NL	ISO 3166-1 alpha-2 country code, or ""
Geo.Continent	string	EU	Continent code, or ""

Continent codes: AF Africa · AN Antarctica · AS Asia · EU Europe · NA North America · OC Oceania · SA South America

Testing with unknown geo

In the Tester, selecting Unknown (GeoIP not resolved) for country/continent simulates a visitor whose IP is not in the MaxMind database. Rules that check Geo.Country != "" will not match.