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Period Comparisons

Comparison mode lets you see how your metrics have changed over time by comparing your current period against a previous period. This helps you identify trends, measure growth, and understand whether changes in your traffic are normal or require attention.

Enabling Comparison Mode​

Click the Compare toggle in the top navigation bar to activate comparison mode. Once enabled, every metric and chart on your dashboard shows comparison data.

The comparison period is automatically selected based on your current date range:

  • Viewing last 7 days → compares to the 7 days before that
  • Viewing last 30 days → compares to the 30 days before that
  • Viewing a custom range → compares to the same length period immediately before

Comparison Display​

When comparison mode is active, you'll see change indicators next to every metric:

Green arrows (↑) indicate increases:

  • ↑ 24% = metric increased by 24%
  • Displayed in green text

Red arrows (↓) indicate decreases:

  • ↓ 12% = metric decreased by 12%
  • Displayed in red text

Neutral indicators show no change or very small changes:

  • → 0% = no change
  • Displayed in gray text

Previous Period Comparison​

This is the default comparison mode and the most commonly used.

How it works:

  • Compares your selected period to an equal-length period immediately before
  • If you're viewing May 1-31 → compares to April 1-30
  • If you're viewing Last 7 Days → compares to the 7 days before that

When to use it:

  • Track week-over-week growth
  • Measure month-over-month trends
  • Evaluate the immediate impact of changes (new content, campaigns, site updates)

Example: You're viewing "Last 30 days" showing 5,200 visitors with ↑ 18% in green. This means you had 18% more visitors in the last 30 days compared to the 30 days before that.

Year-over-Year Comparison (Phase 2)​

Compare your current period to the same period last year to account for seasonal patterns.

How it works:

  • Compares your selected period to the same dates one year ago
  • If you're viewing May 2024 → compares to May 2023
  • Accounts for weekly seasonality automatically

When to use it:

  • Understand seasonal trends (e.g., holiday shopping, back-to-school)
  • Measure true annual growth (removes seasonal noise)
  • Compare campaigns that run annually

Example: Your December traffic shows ↓ 5% vs. previous period (November) but ↑ 45% vs. year-over-year. This reveals that your December dip vs. November is normal seasonal variation, but you're growing strongly year-over-year.

Interpreting Comparisons​

Context is Everything​

Numbers without context are meaningless. Consider:

Is the change meaningful?

  • ↑ 2% with 100,000 visitors = 2,000 more visitors (significant)
  • ↑ 50% with 10 visitors = 5 more visitors (not meaningful yet)

Is it sustained or temporary?

  • Consistent week-over-week growth suggests a trend
  • One-time spikes might be viral content or temporary campaigns

Do all metrics align?

  • Visitors ↑ 30% and pageviews ↑ 32% = healthy growth
  • Visitors ↑ 30% and pageviews ↑ 5% = engagement dropped

Green Doesn't Always Mean Good​

Not all increases are positive:

Bounce rate ↑ 15% = worse engagement (more people leaving immediately) Exit rate ↑ 20% on key pages = potential UX problem Direct traffic ↑ 50% might indicate broken UTM tracking, not growth

Similarly, red doesn't always mean bad:

Bounce rate ↓ 10% = better engagement (good!) Visit duration ↓ 5% might mean users find answers faster (could be good)

Comparison in Context​

Metric Bar Comparisons​

All six key metrics show comparison percentages:

Unique Visitors: 5,234 ↑ 18%
Pageviews: 28,445 ↑ 22%
Bounce Rate: 58% ↓ 3%
Visit Duration: 2m 45s ↑ 8%
Visits: 7,123 ↑ 15%
Pages/Visit: 4.0 ↑ 6%

What this tells you: Traffic growing (visitors, visits, pageviews all up), engagement improving (bounce rate down, duration and pages/visit up). This is healthy growth.

Chart Comparisons​

The main traffic chart overlays your comparison period as a lighter line:

  • Solid line = current period
  • Dashed/lighter line = comparison period

This visualization helps you see patterns:

  • Are you growing consistently across the period?
  • Did growth happen gradually or from a specific spike?
  • Do traffic patterns match (same weekly/daily rhythms)?

Table Comparisons​

Every row in your data tables shows comparison indicators:

Top Pages:

/blog/analytics-guide    1,234 visitors ↑ 45%
/pricing                   890 visitors ↓ 12%
/                         654 visitors ↑ 8%

This reveals which pages are growing and which are declining.

Common Comparison Patterns​

Healthy Growth​

All main metrics trending up together:

  • Visitors ↑ 15-30%
  • Pageviews ↑ similar percentage
  • Bounce rate stable or ↓ slightly
  • Pages/visit stable or ↑ slightly

Action: Keep doing what you're doing. Document what changed to replicate success.

Traffic Spike with Poor Engagement​

  • Visitors ↑ 200%
  • Bounce rate ↑ 40%
  • Pages/visit ↓ 30%
  • Visit duration ↓ 25%

Diagnosis: Viral traffic or bot spike. Visitors aren't your target audience or content doesn't match expectations.

Action: Filter by source to identify where the spike came from. If it's low-quality traffic, don't worry. If it's real users, investigate why they're bouncing.

Declining Organic Traffic​

  • Search traffic ↓ 25%
  • Other sources stable
  • Overall visitors ↓ 12%

Diagnosis: SEO issue - rankings dropped, content lost relevance, or algorithm update.

Action: Check Google Search Console, review recent content changes, investigate ranking changes for key pages.

Improving Engagement, Flat Growth​

  • Visitors → 0% (flat)
  • Bounce rate ↓ 15%
  • Pages/visit ↑ 20%
  • Visit duration ↑ 18%

Diagnosis: Content quality improving but discovery/acquisition isn't growing.

Action: Focus on acquisition - SEO, social, paid ads. Your site retains traffic well now.

Using Comparisons with Filters​

Combine comparison mode with filters for powerful insights:

Compare Traffic Source Performance​

  1. Enable comparison mode
  2. Click "Google" in sources
  3. See how Google traffic specifically has changed

Example result: Overall traffic ↑ 10%, but Google traffic ↓ 15%. You're growing elsewhere but losing organic search - investigate SEO issues.

Compare Geographic Markets​

  1. Enable comparison mode
  2. Click "United States" in countries
  3. See how US traffic has changed
  4. Clear filter, click "Germany"
  5. Compare growth rates between markets

Example result: US traffic ↑ 5%, Germany traffic ↑ 45%. Your German market is exploding - consider localization investment.

Compare Device Performance​

  1. Enable comparison mode
  2. Click "Mobile" in devices
  3. Note mobile traffic change
  4. Clear, click "Desktop"
  5. Compare trends

Example result: Desktop traffic ↓ 8%, mobile traffic ↑ 25%. The mobile shift is accelerating - prioritize mobile optimization.

Tips & Best Practices​

  1. Always consider sample size - A ↑ 500% change from 2 visitors to 10 visitors isn't meaningful

  2. Look for sustained trends - Check comparisons over multiple periods (weekly for several weeks) to confirm trends aren't flukes

  3. Investigate unexpected changes - Any metric change > 30% deserves investigation

  4. Compare similar periods - Don't compare a holiday week to a normal week; use year-over-year for seasonal businesses

  5. Check all metrics together - Never evaluate traffic growth without checking engagement metrics too

  6. Use filters to diagnose - When overall metrics change, filter by source/device/country to find what's driving the change

  7. Document what changed - When you see significant changes, note what you changed on your site/marketing to learn what works

  8. Set up alerts (Phase 2) - Future updates will let you get notified when metrics change beyond thresholds

Real-World Examples​

Example 1: Content Marketing Success​

You published 5 new blog posts last month. Comparison shows:

  • Overall visitors ↑ 35%
  • Search traffic ↑ 48%
  • /blog/* pages ↑ 120%
  • Bounce rate on blog ↓ 8%

Interpretation: Content strategy working. New posts attracting search traffic, and quality is good (low bounce rate).

Example 2: Mobile Site Problem​

Last week you updated your mobile design. Comparison shows:

  • Overall visitors ↓ 18%
  • Desktop traffic → 0% (no change)
  • Mobile traffic ↓ 42%
  • Mobile bounce rate ↑ 35%

Interpretation: Mobile redesign broke something or significantly degraded UX. Revert or fix immediately.

Example 3: Campaign Success​

You ran a paid campaign last month. Comparison shows:

  • Campaign traffic ↑ 450% (expected)
  • Bounce rate on landing page ↓ 12%
  • Conversion rate ↑ 25%
  • Cost per conversion ↓ 18%

Interpretation: Campaign performing excellently. Landing page optimization paid off. Scale up budget.

Comparison mode transforms your dashboard from showing "what is" to showing "what changed" - the most important question for growing your site.