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What is Reach?

Reach counts the number of unique people who saw your ad. Learn how to read reach with frequency and optimize coverage.
Brief Definition

Reach is the number of unique people who saw your ad. It shows coverage, not engagement.

Understanding Reach

Reach counts the number of unique people who saw your ad; it is a coverage metric, not an engagement metric. Pair reach with impressions to understand frequency—how often the average person saw your ad. Growing reach at steady outcomes indicates you’re expanding the addressable audience effectively. If reach stalls, targeting, budgets, or eligibility may be too constrained. Read reach trends over time, not just in daily snapshots.

Context is key. High reach with weak outcomes can signal creative or landing page issues. Low reach with high frequency can indicate overserving to a small audience. Expanding placements and sizes usually increases eligible inventory. Fresh creative helps sustain qualified reach as fatigue sets in. Keep exclusions clean to avoid wasting impressions on recent converters.

Why Reach matters

Reach matters because it shows whether your message is getting out broadly enough to find new customers. It helps diagnose whether issues stem from coverage (too few people seeing ads) versus conversion (people seeing but not acting). When reach grows while cost and quality hold steady, you’re tapping new pockets of demand.

  • Coverage: Ensures your message gets out broadly.
  • Diagnosis: Low reach can flag targeting or budget issues.

How Reach works

Reach works by counting unique users exposed to your ads over a given window, deduplicating impressions across placements where possible. Platforms estimate uniqueness differently, so definitions can vary—keep windows consistent when comparing. Increasing placements, sizes, and audiences expands eligible inventory and reach. Frequency controls balance repetition with coverage to avoid fatigue. Creative variety helps reach new segments without hurting clarity. Monitor reach alongside new‑customer share to ensure growth is truly expanding your audience.

Meta Information

  • Primary Keyword: Reach
  • Secondary Keywords: unique reach, unique users, audience reach
  • Target Word Count: 700–900 words
  • Meta Title: What is Reach? Count Unique People, Not Just Impressions | Marpipe
  • Meta Description: Reach counts the number of unique people who saw your ad. Learn how to read reach with frequency and optimize coverage.
  • URL: marpipe.com/ad-glossary/reach

# What is Reach?

Reach is the number of unique people who saw your ad. It shows coverage, not engagement.

Understanding Reach

Reach counts the number of unique people who saw your ad; it is a coverage metric, not an engagement metric. Pair reach with impressions to understand frequency—how often the average person saw your ad. Growing reach at steady outcomes indicates you’re expanding the addressable audience effectively. If reach stalls, targeting, budgets, or eligibility may be too constrained. Read reach trends over time, not just in daily snapshots.

Context is key. High reach with weak outcomes can signal creative or landing page issues. Low reach with high frequency can indicate overserving to a small audience. Expanding placements and sizes usually increases eligible inventory. Fresh creative helps sustain qualified reach as fatigue sets in. Keep exclusions clean to avoid wasting impressions on recent converters.

Why Reach matters

Reach matters because it shows whether your message is getting out broadly enough to find new customers. It helps diagnose whether issues stem from coverage (too few people seeing ads) versus conversion (people seeing but not acting). When reach grows while cost and quality hold steady, you’re tapping new pockets of demand.

  • Coverage: Ensures your message gets out broadly.
  • Diagnosis: Low reach can flag targeting or budget issues.

How Reach works

Reach works by counting unique users exposed to your ads over a given window, deduplicating impressions across placements where possible. Platforms estimate uniqueness differently, so definitions can vary—keep windows consistent when comparing. Increasing placements, sizes, and audiences expands eligible inventory and reach. Frequency controls balance repetition with coverage to avoid fatigue. Creative variety helps reach new segments without hurting clarity. Monitor reach alongside new‑customer share to ensure growth is truly expanding your audience.

Best practices

  1. Track reach with frequency; avoid excessive frequency without lift.
  2. Expand placements and audiences to grow reach.
  3. Keep creative fresh to sustain qualified reach.
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FAQs
What's a good reach for my campaign?
Good reach depends on market size, budget, and objectives—aim to grow qualified reach over time while maintaining conversion quality.
How do I increase reach without hurting performance?
Increase reach by broadening placements and audiences, adding more ad sizes, refreshing creative, and expanding to new platforms while monitoring conversion rate.
Does high frequency hurt reach?
Yes—high frequency concentrates impressions on fewer people; cap frequency at 3-5 per week or expand audiences/placements to maintain reach.
What's the difference between reach and impressions?
Reach counts unique people who saw your ad; impressions count total ad views; dividing impressions by reach gives average frequency.
How do I know if reach is too low?
Reach is too low if budget isn't fully spending, performance plateaus despite strong creative, or frequency climbs above 5 while reach stagnates.