· 4 min read
The last few days are not final
Performance data for the most recent days can still change. Comparing a provisional day with a finalised one makes yesterday look like a crash. Use finalised data for alerts and state clearly how fresh it is.
Some queries are never shown
Google withholds very low-volume queries, so query rows do not add up to the property total. A query that is missing from this week's export may still have had impressions. Absence of a row is not proof of zero.
Row limits bite on large sites
Requesting many dimensions over a long date range returns only the top rows. Fetching one day at a time gives more complete detail than one large request.
What good monitoring does about it
- Alerts on finalised days only
- Compares like with like: same weekdays, equal-length windows
- Requires minimum volume before flagging anything
- Treats a vanished low-volume row as unknown, not zero