http proxy server configuration: Fiddler/Postman debugging essential skills

Why does the debugging tool need a proxy IP?

Fiddler or Postman debugging interface, you may have encountered these situations: the local environment request is normal, but the server returns an exception; third-party interfaces to restrict access to specific IP; or need to simulate the behavior of users in different regions. At this timeProxy IP is your cloak of invisibility + free door-Both hiding the real server address and switching the geographic location of the request.

Hands-on Configuration of Fiddler Proxy

Open Fiddler and follow these 5 steps:

1. Click on the menu bar Tools > Options > Connections
2. tickAllow remote computers to connect
3. Remember the default port8888(customizable)
4. Turn on your phone/other device and configure the proxy in the WiFi settings:
   

   server (computer)	Computer's LAN IP
   ports	8888

5. In the input box at the top of Fiddler, typeipipgo proxy address:portFor examplegateway.ipipgo.com:8000

At this point all requests passing through Fiddler will be forwarded through ipipgo's residential IP, which is particularly suitable for testing locale-related interface logic.

Postman's proxy play

Setting up proxies is easier in Postman:

1. Click on the upper right cornerSettings > Proxy
2. In Global Proxy selectCustom Proxy
3. write data in a box (on a questionnaire or web form)Proxy server address and port provided by ipipgo
4. When authentication is required, select Authorization from the list.Basic AuthFill in the account password

Real-world tips:In case of slow interface response, you can switch to ipipgo's static residential IP, which is closer to the real user environment than the data center IP.

Debugging cases

Case 1:An e-commerce order interface in Shenzhen server room access normal, but Hangzhou server room reported errors. With ipipgo switch different city IP test, found that the CDN node configuration problems.

Case 2:Crawler development with Fiddler proxy to quickly switch IPs in 10 different countries to verify the trigger threshold of the anti-crawling strategy.

Guidelines for the clearance of high-frequency problems

Q: Proxy settings are correct but I can't connect?
A: Turn off the firewall first, then use the ipipgo provided by theIP Detection ToolVerify proxy connectivity. If using account authentication, note that URL encoding is required when the password contains special characters.

Q: What should I do if I need to use multiple regional IPs at the same time?
A: Created in the ipipgo consoleMulti-entry Proxy Gateway, assigning separate ports to each region. For example:
gateway.ipipgo.com:8001 → US IP
gateway.ipipgo.com:8002 → Japan IP

Q: HTTPS request capture shows certificate error?
A: Install the root certificate in Fiddler (Options > HTTPS > Actions), and make sure the proxy service supports SSL forwarding. ipipgo's proxy node has full protocol support by default, so if you encounter problems, you can switch to other ports to try.

Why choose professional agency services?

Building a proxy server on your own will encounter problems such as IP blocking and high maintenance costs. Professional service providers like ipipgo have three major advantages:
1. Residential IP Resource Pool: 90 million+ real home IPs to avoid being recognized as machine traffic
2. Intelligent Routing: automatically selects the node with the lowest latency
3. Full coverage of agreements: HTTP/HTTPS/Socks5 on-demand switching

Next time you get stuck debugging, remember to let the proxy IP open God's view for you. Now go to ipipgo website and copy your dedicated proxy address, put it into Fiddler/Postman and try it!