Planning a Traffic Filtering Service Around Real Decisions

Replace labels such as 'bad traffic' with observable conditions: an excluded country, excessive repeat activity, automation traits, a disallowed network category, or a missing campaign source. Precise definitions prevent unrelated visitors from being grouped together.

Decide which conditions route conservatively, which are merely recorded, and which trusted cases override a broader rule. The destination is a business decision; signal collection alone should not determine it without a documented mapping.

Keep campaigns with different acquisition patterns separate enough to compare their event mix. Begin with a small set of high-confidence controls, validate them, and add combinations only when the logs expose a real gap.

A rule tuned during one traffic mix may become overly broad after a placement or regional expansion. Hidden defaults and empty referrers can also surprise teams that assume every request arrives with complete browser context.

At the event level, confirm the reason matches the request attributes. At the campaign level, compare route distribution and error reports by source before and after a change, while investigating legitimate sessions that landed on the conservative page.