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26/2/2026

How to Check if a Proxy is Clean? Ultimate Guide to IP Quality (2026)

Master the process of checking proxy quality. Learn how to verify anonymity, Fraud Score, DNS leaks, and speed to ensure your IP is clean for Facebook, Google, and Amazon.

Comprehensive Proxy Quality Check from A - Z (2026 Updated)

In an era where Artificial Intelligence (AI) and Big Data systems from giants like Google, Facebook, and Amazon are becoming increasingly sophisticated, owning a "clean" IP address is no longer just an advantage—it is a survival requirement. Many MMO (Make Money Online) practitioners often wonder: "Why was my account banned even though I bought a proxy?". The answer lies in the proxy quality inspection step before deployment.

In this article, proxygen.vn will provide you with the most in-depth proxy verification process, helping you accurately distinguish between "Gold" proxies and "Trash" proxies.

1. How to Know if a Proxy is Clean? Core Evaluation Criteria

Before getting started, you need to understand what constitutes a "clean" proxy. Beyond simply being able to browse the web, a high-standard proxy must pass four rigorous layers of inspection:

1.1. Criterion 1: Anonymity Level

A clean proxy must be an Elite Proxy. It must not leave any trace indicating that you are using an intermediary server. If the target website detects a proxy via HTTP Headers (such as x-forwarded-for), they will immediately escalate the monitoring level on your account.

1.2. Criterion 2: Trust Score

Every IP in the world has a "reputation profile." Anti-fraud systems assign a number to an IP called a Fraud Score. The higher the score, the "dirtier" the IP. Clean proxies typically have a score below 10.

1.3. Criterion 3: History & Blacklists

A clean proxy must stay off global blacklists (e.g., Spamhaus, Barracuda). If that IP was ever used for spamming or cyberattacks, it will be "blacklisted" by security systems permanently.

1.4. Criterion 4: Technical Consistency

An IP located in Vietnam but using a DNS in the US, or an IP timezone that does not match the browser timezone, are "amateur" mistakes that reveal your true identity.

2. Step 1: In-depth "Identity" & Anonymity Check

This is the first layer of defense. We will verify if the proxy is truly performing its "anonymity" duty.

2.1. Checking IP and Geo-location

Once the proxy is configured, the first step is to confirm if the browser has recognized the new IP.

  • Method: Access Whoer.net.

  • Parameters to monitor: Look at the IP, City, and Country lines. If you are renting a Vietnam Proxy from Proxygen, it must correctly display the city and ISP (Viettel, VNPT, FPT).

  • Safety % Check: Whoer scores your safety on a 100% scale. If it is below 90%, scroll down to the "Notes" section to see where the error lies (usually a timezone or language mismatch).

2.2. DNS Leak Inspection Process

This is the most common technical error. Your IP might be in the US, but when you access a site, your computer uses a Vietnamese ISP's DNS server to resolve the address. It’s like wearing a mask but wearing shoes with your real name on them.

  • Tool: Ipleak.net.

  • Operation: Look at the DNS Address section. If the list of DNS servers shows a country different from your proxy's IP country, you have a DNS leak.

  • Solution: You need to set Google's DNS (8.8.8.8) or use anti-detect browsers with a feature that forces DNS through the proxy.

2.3. WebRTC Leak Inspection Process

WebRTC facilitates direct video/audio streaming but can accidentally expose your internal and real IP addresses.

  • Method: At Browserleaks.com, find the WebRTC section. If you see your real ISP's IP address in the "Public IP Address" field, your proxy is "leaking."

  • Solution: Use extensions like "WebRTC Leak Prevent" or, ideally, use software like AdsPower or Gologin to disable this feature entirely.

3. Step 2: History & Trust Score (Reputation) Check

This section helps you understand the "past" of the IP address you are using.

3.1. Guide to Reading Scamalytics Indicators

This is the most stringent website for IP evaluation. Access Scamalytics.com and enter your IP.

  • Fraud Score: This is the most critical number.

    • 0 - 10: Excellent. Suitable for Ads and Checkout.

    • 11 - 40: Fair. Use for social media account farming.

    • Over 50: Risky. Should not be used for high-value accounts.

  • Proxy/VPN Detection: If this field shows "High Risk", the IP has been flagged as an intermediary server. Residential proxies from proxygen.vn usually show "Low Risk" or "No" because they appear as real users.

3.2. Global Blacklist Lookup

Visit Spamhaus.org, the world's largest organization for tracking malicious IPs.

  • Enter your IP in the "Blocklist Removal Center."

  • If it shows green with the line "IP is not in the database," your proxy is extremely safe.

  • If it shows red with an error code (SBL, XBL, PBL), request an IP change immediately because the IP is "tainted."

4. Step 3: Performance & Real-world Stability Check

A clean but slow proxy reduces productivity and increases account checkpoint rates due to delayed actions.

4.1. Measuring Bandwidth Speed

Access Fast.com (owned by Netflix) to measure real-world download speeds.

  • Note: The ideal speed for MMO tasks is 10 Mbps or higher. If the speed is below 2 Mbps, loading pages like Facebook Business or TikTok Shop will be difficult and prone to timeouts.

4.2. Checking Ping and Jitter

Use Speedtest.net.

  • Ping: Reflects latency. If using a VN Proxy within Vietnam, Ping should be under 50ms. If it reaches several hundred ms, your screen actions will be "laggy," causing the target's AI to suspect automated tools.

  • Jitter: This measures Ping stability. The lower the Jitter, the more stable the connection.

5. Total Solution for Clean Proxies at Proxygen.vn

At proxygen.vn, we understand that customers don't want to spend hours checking every single IP. Therefore, we have integrated the verification process right at the entry point:

  1. Input IP Filtering: Our system automatically removes IP ranges with high Fraud Scores before they go on sale.

  2. Diverse ISPs: We provide a full range of VNPT, Viettel, and FPT Proxies to help you easily vary your environment.

  3. SOCKS5 Support: This is the most powerful protocol, supporting data encryption and far better anonymity than traditional HTTP.

  4. Absolute Security: Each Private IPv4 Proxy is assigned to only one customer, ensuring no "tainted IP sharing" occurs.

6. Frequently Asked Questions (FAQ)

Q: Why does Whoer show 100%, but Scamalytics shows a high score? A: Whoer only checks surface technical parameters (IP, timezone, language). Scamalytics deep-dives into the transaction history and past behavior of that IP. You should prioritize the Scamalytics score.

Q: How do I keep my proxy clean? A: Avoid violating the target website's policies on that IP (e.g., spamming, aggressive scraping). If you use a clean proxy for malicious activities, you will "taint" the IP yourself.

Q: Which website should I use for the most accurate speed test? A: Fast.com is the most honest because it uses Netflix's server system, which is difficult for proxy providers to "fake."

7. Conclusion

Checking your proxy is not a waste of time—it is protecting your wallet. With just 5 minutes to perform the 3-step process guided by proxygen.vn, you can operate your million-dollar MMO projects with total peace of mind. Remember: Only with a solid foundation (Clean IP) can the castle (Account) stand firm!

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