Each search request seems to count as 2?

So I’m not using search as you type, but when I perform one search request I’m getting billed for 2 search requests. The first has the host name: APIkey.algolia.net and the second has the host name: APIkey-1.algolianet.com both requesting and returning the same result.
As far as I understand, the first one is my original search request, and the 2nd is supposed to be caused by the retry strategy. According to the docs,

“If this first try works, the search goes through. If it fails, the clients activate their retry logic.”

So does this mean that my first search is failing every time? Even though the response body comes back as expected?