Verify a list of Googlebot IPs in Python

verify.py

import ipaddress
import requests

def verify_googlebot_ips(
    list_of_ips,
    google_ips_list_url="https://developers.google.com/static/search/apis/ipranges/googlebot.json",
):
    """Checks if each IP address in given list is in Google's official list of IP ranges.  
    Args:  
    - list_of_ips: list of ipv4 or ipv6 to check,
    - google_ips_list_url: URL to the json list of official IP ranges.  

    Returns list of dict with True/False value for each IP.  
    """
    
    # Get the list of IP ranges
    r = requests.get(google_ips_list_url)
    data = r.json().get("prefixes")
    # Keep only the ranges
    valid_ranges = [list(d.values())[0] for d in data]
    
    # Iterate over the list of IPs to check each one
    res = []
    for ip in list_of_ips:
        d = {ip:False}
        for ip_range in valid_ranges:
            if ipaddress.ip_address(ip) in ipaddress.ip_network(ip_range):
                d[ip] = True
                break # Break if we found the IP range
        res.append(d)

    return res

Uses official list of IP ranges Google provides here.