Search Trend Crawler Python Tool: Search Trend Crawler

First, why use a proxy IP to catch search trends?

Do data analysis of the old iron understand, want to catch the major platforms of the search trend data, the most headache is to be blocked IP. as if you go to the supermarket to try to eat, and even eat a dozen times not to buy, the security guards will certainly want to blow you away. At this time it is necessary toproxy IPThis "vest", every time you change clothes to try to eat, the platform will not recognize the same person.

To give a real case: last year, there is a friend who does e-commerce, with their own company IP to catch a platform data, the results of the next day the entire company network are blacked out. Later, he usedipipgoThe proxy IP service, set to automatically change IP every 5 minutes, ran for half a month straight without flipping.

Second, hand to teach you to build a crawler tool

Let's use Python to write a basic version of the crawler, focusing on how to integrate proxy IP. The code is buried in a few newbies often step on the pit, pay attention to the comments:

import requests
from time import sleep

 The format of ipipgo's proxy interface (remember to replace it with your own account)
proxy = "http://用户名:密码@gateway.ipipgo.com:端口"

def grab_trends(keyword).
    try.
         Highlights! Here you must use verify=False to skip the certificate validation
        resp = requests.get(
            url=f "https://example.com/search?q={keyword}",
            proxies={"http": proxy, "https": proxy}, timeout=15, timeout=15, timeout=15, timeout=15
            timeout=15,
            verify=False
        )
        print(f "Crawl successful! Current IP:{resp.headers['X-Forwarded-For']}")
        return resp.text
    except Exception as e.
        print("Damn, maybe the IP is blocked! Error message:", str(e))
        return None

 Example of use
for kw in ["cell phone", "computer", "headset"]:: data = grab_trends(kw)
    data = grab_trends(kw)
    sleep(3) Don't do it too often, just like a human.

Watch out for these two potholes:

1. Many tutorials do not say that the certificate verification, in fact, the platform anti-climbing will intentionally use expired SSL certificates
2. Do not set the timeout time too short, it is recommended that 10-15 seconds to the proxy IP response time.

Proxy IP purchase to avoid the pit guide

The quality of proxy IPs on the market varies, teaching you to look at these key indicators:

Special note: Don't believe those service providers who claim "unlimited traffic", normal enterprise services are billed by the number of concurrency. The normal enterprise services are billed by the number of concurrency.ipipgoThe business package for 50 threads is only a few hundred dollars per month, which is much more cost-effective than building your own proxy server.

Fourth, the actual QA collection

Q: Do I have to change my IP for each request?
A: Depending on the strength of the platform's wind control, it is generally recommended that the same IP visit no more than 5 times in a row. ipipgo's intelligent rotation mode can automatically control this frequency.

Q: What should I do if I encounter a CAPTCHA?
A: Three steps: 1) Immediately suspend the current IP 2) Switch high stash proxies 3) Reduce the collection speed. ipipgo's proxy pool comes with a CAPTCHA warning function.

Q: How do I handle incomplete data capture?
A: 80% of the IP is restricted. Try to use multiple proxy terminals at the same time, such as 10 IP parallel collection. ipipgo supports multi-terminal cooperative mode, up to 200 concurrently!

V. Upgrade your collection strategy

Advanced players can play these tawdry maneuvers:

1. Geographic acquisition: Catch local trend data with the proxy IP of a specific city, for example, use Shenzhen IP to catch the search volume of "Huaqiangbei cell phone".
2. time interval strategy: Use corporate IPs on weekdays and cut residential IPs on weekends to simulate real user behavior
3. protocol mixing: HTTP/HTTPS/SOCKS5 rounds, don't let the platforms figure out the pattern

These features are available in theipipgoThe management backend of all of them can be configured with one click, and their technical support can also help write customized collection solutions for teams doing data monitoring for a long time.

Lastly, I would like to say a few words: Proxy IP is not a panacea, it should be combined with reasonable request frequency and standardized crawler writing method in order to last. Just like driving both good tires (proxy IP), but also to comply with traffic regulations (crawler ethics), in order to safely reach the destination.