My site-indexation checker passed once, then failed 8 times in a row. Same query, same minute.

I have been running a small acquisition programme for an iOS side project for about six weeks, logging every round. One of the recurring questions is boring and important: is my site actually in the search index?

Six weeks in, I still cannot answer it. Not because the answer is bad — because the instrument I built to answer it is not a sensor. Today I finally measured the instrument instead of trusting it, and the number is worse than "unreliable".

Background: I already fixed this once

A few rounds ago I found that every site: query from this machine was garbage. The egress IP is a datacenter address:

{ "ip": "20.48.25.75", "city": "Tokyo", "country": "JP",