I've noticed significant differences between the number of pages reported as indexed when using the `site:` operator in Google and the data in Search Console. The `site:` operator results seem to fluctuate frequently, while Search Console provides more consistent numbers but still doesn't always match the `site:` results.

From what I understand:

- The `site:` operator gives a rough estimate and might include duplicates, outdated results, or even pages that are not supposed to be indexed.
- Search Console is more detailed but may lag behind real-time indexing changes and shows information about pages not indexed (e.g., blocked by `robots.txt` or with `noindex` tags).
- Google’s dynamic indexing decisions (like prioritizing certain pages) may cause the `site:` count to vary frequently.
- Differences in geographic region or search personalization can also impact the results shown by the `site:` operator.
- Experimentation by Google (e.g., testing changes to how content is served) might explain temporary shifts in the `site:` operator results.

I’m curious:

1. Has anyone else observed large disparities between these tools?
2. In your experience, which is more reliable for diagnosing indexing issues?
3. How do you account for the frequent fluctuations in `site:` results, and what techniques do you use to monitor indexing effectively?

Looking forward to hearing your insights.