Cost Per Click (CPC)

A practical example

Example: a team notices CPC rising on one ad platform while click volume holds; they check impression share and ad relevance diagnostics, then test new creative before assuming the market simply got more expensive.

What to evaluate before investing

• Confirm the tool normalizes CPC across platforms with different currencies and billing models before showing comparisons.
• Check whether CPC can be viewed alongside relevance or quality diagnostics, not just cost, to explain movements.
• Verify you can segment CPC by keyword, audience and placement so increases can be traced to a specific cause.

Limitations and tradeoffs

Low CPC is not inherently good: cheap clicks from low-intent audiences often produce worse CPL and pipeline than expensive clicks from qualified ones. Never optimize CPC in isolation from downstream conversion.