Connection refused / aborted / other errors with simplest CDX API GET request?

[WunderWungiel]

Hello everyone.
I am writing a small Python script for fetching files using specific syntax from Wayback Machine. For searching for them, I use CDX API, requests and RegEx.
Small sample of my code:
url = "https://web.archive.org/cdx/search/cdx?url=d.ovi.com/p/g/store/&matchType=prefix&collapse=urlkey&fl=original" response = requests.get(url, headers=headers, allow_redirects=True)
As you see, it's a simplest GET request to CDX API.

However, it seems like you think I am some kind of bot, spammer or attacker - about 9/10 requests end with errors like these:
Connection aborted, connection refused, Connect timeout (max retries exceeded with url: /cdx/...) and similar.

What's going on? Simplest GET request...

I will be thankful for any help / clue / tip.

Have a good day, and thanks in advance.