How to check that a proxy IP is static, step by step

Which commands should I run?

With curl, one line per protocol. Replace the placeholders with the values from your client area; 203.0.113.10 is a documentation address.

for i in 1 2 3 4 5; do
  date -u +%FT%TZ
  curl -s --proxy http://USERNAME:[email protected]:HTTP_PORT https://api.ipify.org
  echo
  sleep 60
done

curl -s --proxy socks5h://USERNAME:[email protected]:SOCKS_PORT https://api.ipify.org

Can I log it with a Python script?

Yes. This script checks the exit IP every 10 minutes for a day and writes a CSV line each time. It uses only the requests library; for SOCKS5 install requests[socks] and change the proxy URL to socks5h://.

import csv
import time
from datetime import datetime, timezone

import requests

PROXY = "http://USERNAME:[email protected]:8080"
EXPECTED = "203.0.113.10"
proxies = {"http": PROXY, "https": PROXY}

with open("static-ip-log.csv", "a", newline="") as f:
    log = csv.writer(f)
    for _ in range(144):  # 24 hours, every 10 minutes
        stamp = datetime.now(timezone.utc).isoformat(timespec="seconds")
        try:
            ip = requests.get("https://api.ipify.org", proxies=proxies, timeout=20).text.strip()
        except requests.RequestException as exc:
            ip = f"error: {exc.__class__.__name__}"
        log.writerow([stamp, ip, "ok" if ip == EXPECTED else "CHANGED"])
        f.flush()
        time.sleep(600)

What results should worry me?

• A different IP on some requests: the proxy is rotating, or the connection fell back to another route. A static rental should never do this; contact support with your log.
• Errors only: the IP may be down, or your credentials or allowlist are wrong. Check the quickstart first.
• The right IP, the wrong city: that is geolocation, not rotation. Databases can disagree about the city of a fixed address; see why ISP IP cities differ.
• The right IP, an unexpected provider: look up its AS number with the ISP and ASN guide.

Why is my home IP "dynamic" while a proxy is static?

Most home connections get their public address from the provider by DHCP, and it can change after a router restart or when the lease ends. A static proxy address is assigned to a server and does not depend on a home router. This guide checks the proxy’s exit IP; to check your own home connection, compare the IP your router shows over several days.