The playbook
Website Localization: Metrics and Measurement
Measure website localization by defining localized journeys completed precisely enough that two people can reproduce the result from the same records. Keep the reporting unit, date basis, and scope visible. Without those definitions, a change in the report may reflect a changed calculation rather than a changed customer outcome.
Put the task in context
Check translated content in the actual layout, including longer headings and form errors. Review local contact expectations, date formats, currencies, and service availability. Have a fluent reviewer complete the main task from entry through confirmation.
Create a metric definition
| Definition field | What it must explain |
|---|---|
| Measure | localized journeys completed |
| Unit | What one page or interaction record or completed outcome represents |
| Included records | The scope identified by locale and page |
| Date basis | The event date or period used to include a record |
| Exclusions | Tests, duplicates, or other records outside the agreed definition |
| Source owner | site owner |
Separate delivery checks from outcome measures
A delivery check asks whether the team completed a specific task, such as translate meaning and business context rather than isolated words. An outcome measure asks what happened for the user or business afterward. Keep both visible. Completing the task is useful evidence of execution, but it does not by itself prove that the broader outcome improved.
Worked arithmetic example
Suppose an illustrative review includes 80 eligible records, and 60 satisfy the explicitly defined completion condition. The completion share is 60 ÷ 80 × 100 = 75%. This is hypothetical arithmetic, not an industry benchmark or a predicted improvement. It describes only the population and condition you defined.
For website localization, explain the condition before applying that calculation. If the question is whether the team can review forms and support expectations in the target locale, a record counts only when the evidence demonstrates that condition. Do not replace missing outcomes with successful ones just to complete a report.
Compare like with like
Keep the scope, date basis, and exclusions consistent between observations. If page changes meaning between periods, note the change and rebuild a comparable view where possible. A rate can also move because the composition of the underlying group changed, even when individual performance did not.
Investigate an unexpected result
- Check whether the underlying locale records are complete.
- Look for this known failure: translating text while leaving the buying journey inappropriate.
- Verify that the process still includes: check dates addresses currencies and layout expansion.
- Reconcile a sample with the original record before changing the operating plan.
Use the report to choose an action
If the evidence supports a correction, validate the complete experience with a fluent reviewer. Record when the change occurred and what should be checked next. Keep uncertainty visible when the sample is small or the observation period is incomplete. The purpose of measurement is a better decision about localized journeys completed, not a favorable-looking number.
Design recovery as part of the experience. People enter incomplete information, use slow connections, and return to interrupted tasks. A clear error and a preserved input are often more useful than another decorative element.
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