Testing the Functionality of Your VPN in China (2026)

As of 2026, having your VPN connected in China does not guarantee its proper functionality. Numerous users encounter problems such as:

• Being connected, yet foreign websites fail to load;
• Google functions, but YouTube/ChatGPT do not;
• Browsing is extremely slow;
• Applications work, but web pages do not;
• WiFi operates, but mobile data does not—or alternatively.

This guide details effective testing techniques to determine if your VPN is indeed operational in China.

1. First Step: Assess Basic Connectivity

Verify if you can access:

• https://www.google.com
• https://www.youtube.com
• https://chat.openai.com

If these websites do not load:

• Your DNS might be compromised;
• The server could be partially restricted;
• The protocol might be recognized.

2. Second Step: Verify DNS Integrity

DNS issues are a prevalent reason for connectivity problems in China.

• https://dnsleaktest.com
• https://ipleak.net

Warning signs:

• DNS servers listed as China Telecom, Unicom, Mobile;
• Discrepancy between your IP location and the server's location.

Solutions:

• Activate built-in DNS (DoH/DoT);
• Switch to SmartDNS mode.

3. Third Step: Confirm Your IP Location

• https://ifconfig.co
• https://ipinfo.io

Make sure:

• Your IP displays Japan/Singapore/etc. as selected;
• No “Suspicious Proxy” alerts are shown.

4. Fourth Step: Conduct a Speed Test

• https://fast.com
• https://speed.cloudflare.com

Typical performance metrics:

• Standard browsing: 1–5 Mbps;
• YouTube at 1080p: 5–12 Mbps;
• 4K streaming: 15+ Mbps;

5. Fifth Step: Test Streaming Capabilities

• Regional Netflix test;
• Disney+ log in;
• YouTube 4K assessment.

If streaming does not work:

• Switch to nodes that support streaming;
• Utilize SmartDNS.

6. Sixth Step: Compatibility with AI Tools

• ChatGPT messaging test;
• Access to OpenAI dashboard;
• Midjourney via Discord.

7. Final Step: App Performance

• Instagram / Facebook;
• WhatsApp;
• Google Maps;
• YouTube;
• Zoom.

Conclusion