C1

DEPRECATED: This page contains information which is no longer supported (deprecated) as of January 2012. Details remain here for historic purposes and accuracy but should not be considered current best practice.

c1 is the Query String variable which previously was usedto capture the inbound Landing Category for an advertising campaign. It use is deprecated.

Common synonyms can be also used:

• crcategory
• crcat
• cr0

When it appears in a URL:

https://www.example.com?c1=PPC

See also

• crcategory, crcat, cr0, (c1 legacy)
• crsource, cr1, (source legacy)
• crcampaign, crcpn, cr2
• crkeyword, crkw, cr3
• cr0, cr1, cr2, cr3, cr4, cr5, cr6, and cr7