How to choose a crawler proxy IP? 5 Screening Criteria for High Anonymity/High Concurrency Services

Real IP source determines anonymity effect

The first step in determining whether a proxy IP has high anonymity is to look at the source of the IP. The common server room IPs on the market are easily recognized as proxies, and theResidential IPs are assigned through a real home networkWhen using the residential proxy service provided by ipipgo, the target website will think that it is a normal user's online behavior.

It is recommended to look directly at the X-Forwarded-For field in the request header during the testing phase. really high anonymizing proxies will completely hide client information. ipipgo's Residential IP Pool utilizes carrier-grade routing technology to ensure that every request is displayed as a real home broadband IP address.

Concurrent processing depends on the underlying architecture

There are three technical indicators to focus on for high concurrency scenarios:

ipipgo uses a distributed gateway architecture, each node configured with intelligent traffic scheduling system, measured in 1000 concurrent pressure can still maintain a request success rate of 95% or more, especially suitable for the need to manage multiple crawler tasks at the same time.

IP Survival Cycle Affects Stability

The effective duration of the dynamic IP directly affects the stability of the crawler. Short-term live IPs (5-15 minutes) are suitable for high-frequency requests, and long-term live IPs (24 hours or more) are suitable for scenarios where sessions need to be maintained. ipipgo provides two modes:

- Dynamic rotation model:Automatic IP switching per request to prevent triggering frequency limitations
- Static binding mode:Fixed IP maintenance for 12-72 hours, suitable for login state maintenance

Protocol compatibility determines usage scenarios

Different crawler frameworks on the proxy protocol support differences, it is recommended to choose the full protocol support service providers. ipipgo also provides HTTP/HTTPS/SOCKS5 three access methods, measured in Scrapy, Selenium, Puppeteer and other mainstream tools can be plug-and-play, especially in the handling of the need to perform JavaScript page Especially when dealing with pages that require JavaScript execution, the success rate of the SOCKS5 protocol is 40% higher than that of the HTTP protocol.

Geo-location matching accuracy

When the business needs specific regional IP, pay attention to the coverage accuracy of the service provider. ipipgo supports city-level location, for example, if you need a residential IP in Shanghai Pudong New Area, you can accurately get the exit IP of the area through the API. its geolocation database is updated three times a month to ensure that IPs with 90% or more can be accurately matched with the area applied for.

Frequently Asked Questions QA

Q: How to choose between dynamic IP and static IP?
A: high-frequency collection with dynamic IP to prevent blocking, data submission class operation with static IP to protect the session. ipipgo support two modes at any time switching

Q: How do I test the actual speed of the proxy?
A: It is recommended to test the TCP connection time consuming with the curl command:
curl -x ip:port --connect-timeout 5 -o /dev/null -s -w 'Response time: %{time_total}s' https://example.com

Q: Does the level of anonymity affect the efficiency of the crawler?
A: Highly anonymous proxies have 1-2 more hops of TCP handshake, but ipipgo keeps the latency within 150ms through backbone direct connection technology

Q: Do high concurrency scenarios require special settings?
A: It is recommended to enable the connection pool reuse function, ipipgo provides a proprietary SDK can automatically manage the connection state, than the general proxy tool to save 30% resources!

Q: How to deal with IP blocking?
A: Immediately switch IP and reduce the frequency of requests, ipipgo's intelligent routing system will automatically block the marked IP segments, and it is also recommended to cooperate with the request random delay mechanism