Sitearc

Reading GA4 for a client who asks simple questions

A question-first reading map for one property, with the denominators, the consent caveat and the two readings to distrust.

Answers
Pick the Analytics question before opening a report.
Worked example
A filled question and denominator table for one month
Written for
Agencies and site owners reporting to a client

Start with the question

Analytics answers six questions a site owner asks out loud. Everything else is a dimension in search of a decision.

The map, filled in

Brightwater Dental, September 2026. One property, consent banner live, no ecommerce.

Question asked Read Value Denominator Caveat
How many arrived Organic overview 118 n/a consent applies
Which pages caught them Organic landing pages /emergency 34 118 sessions consent applies
What they did there Page performance 61 engaged 118 sessions consent applies
Where they came from Traffic acquisition search 71 118 sessions consent applies
Did they act Key events 9 118 sessions one event type
Is it even measuring Measurement health healthy one page checked by hand

The three readings to distrust

  1. An average of two sources. Search Console and Analytics count different things. Averaging them produces a number that means nothing.
  2. A count without a denominator. Nine events from 118 sessions is 7.6%. Nine from 900 is 1%.
  3. A conversion rate after a consent change. The denominator moved, so the ratio moved, and nothing about the business changed.

What to do before the next report

1. read measurement health on one page, by hand
2. confirm one key event fires for one real submission
3. write the denominator beside every count
4. name the consent rate, so a fall is explainable
5. list the actions that will never appear: phone calls, walk-ins

Acceptance: the property is readable when

  • measurement health is healthy on a page you checked yourself
  • a key event fired once for one real submission
  • every value in a report has a denominator
  • the consent rate is visible beside the session count
  • offline actions that never appear are named in the report

Troubleshooting

Symptom Likely cause What to do
No data for a day The tag was blocked, or consent denied Check one page’s HTML for the tag
Sessions far below search clicks Consent, or an unmeasured channel Compare with the consent rate
Events double Two tags, or a retry Count the tag on the page
The client asks for revenue The property does not record it Say so, and report enquiries instead
Every report looks flat Nothing changed on the site Propose one test, then read it

Limits

Analytics is consent-dependent and configured by somebody. A low number can be a broken tag rather than a quiet month.

Read measurement health before any other report, and treat a missing value as missing rather than as zero.

Where this came from