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Quantalog

Comparing periods

Measure every metric against the previous period, the same dates last year, or any baseline you pick — on the chart and inside each breakdown.

Every number on the dashboard carries a change figure beside it. Comparison mode decides what that change is measured against — the period just before, the same dates a year ago, or any period you pick.

#Choosing a baseline

The compare control sits next to the date range. Three options:

  • Prev — the period immediately before the one you are viewing. Viewing the last 7 days compares against the 7 days before that. This is the default.
  • YoY — the same window one year earlier. The right choice for anything seasonal, where last week is a worse guide than last year.
  • Custom — pick a start date and the baseline runs from there for the same length as your current range.

#On the chart

Picking any baseline other than Prev draws it on the traffic chart as a dashed line behind the current period, aligned bucket for bucket. The baseline keeps its own dates in the tooltip, so you can see which day you are comparing against.

#Comparing breakdowns

Breakdown cards — top pages, referrers, browsers, countries, UTM sources and the rest — have a compare toggle in their header. Turning it on replaces the percentage-of-total column with each row's movement against the baseline.

  • Rows that did not exist in the baseline are marked new rather than shown as an infinite increase.
  • Rows that existed in the baseline but have no traffic now still appear, at zero — usually the most useful row on the card, and the one a current-period-only ranking hides.
  • Hover a change figure to see the raw baseline count behind it.

#Over the API

The stats endpoints accept a compare parameter, optionally with compareFrom for a custom baseline:

The response gains a comparison object holding the baseline's own totals and its resolved bounds, alongside the existing deltas percentages.

#Plan availability

Comparison against the previous period is included on every plan, including Free — which covers ranges up to 7 days, so week-over-week reads work out of the box. Custom baselines are available from Starter, and year-over-year comparison on Pro, where a year-ago baseline has a year of history behind it.