Crawling vs Crawling: Technical Concepts Explained

Crawling is like shopping in a supermarket. Crawling is like wholesaling.

We ordinary people go online, copy and paste manually.gripper. It's like going to the supermarket and buying a bottle of soy sauce and using it up. But for companies to do data analysis, they have to usereptileAutomated sweeps, like a wholesaler driving a truck in and emptying the entire shelf.

The most important difference between these two is thatballparkrespond in singingfrequency. Crawling might be done once a month, crawlers can't wait to sweep every minute. Crawler with ordinary home network, it is like driving a truck into the neighborhood - minutes by the property gate (IP blocked). This is the time to needproxy IPto be a fake license plate, such as ipipgo's dynamic IP pool, and be able to change your vest at any time to keep working.

Life-saving tips for tech geeks

There are three things to fear when working on a crawler:IP blocking, account blocking, lawsuitsThe first thing you need to do is to take a look at your favorite products. Take a certain treasure as an example, if you use a fixed IP wild brush product information, less than half an hour quasi-blocked. With ipipgo's residential proxy, each request changes to a real user IP, just like guerrilla warfare to fight a gun for a different place.

import requests
from itertools import cycle

proxy_pool = cycle(ipipgo.get_proxies()) get dynamic IP pool from ipipgo

def safe_crawler(url).
    for attempt in range(5).
        proxy = next(proxy_pool)
        try: response = requests.get(url)
            response = requests.get(url, proxies={"http": proxy, "https": proxy})
            return response.text
        except.
            continue
    return None

The code above uses theIP Rotation StrategyThe IPIPGO proxy IP also supports automatic verification, encountering the invalid IP switch in seconds, than manually change the IP to save time is not a half a star.

Anti-Blocking Tips and Tricks Pack

Don't think that if you use a proxy IP, everything will be fine, the crawler has to talk about martial arts:

With ipipgo'sIntelligent RoutingThe function is more stable, it can automatically assign export IPs of different regions. for example, if you crawl Shanghai local website, it is more realistic to use Hangzhou and Suzhou proxy IPs, and it looks much more reasonable than using Xinjiang IPs.

The three questions of the soul must be understood

Q: Can't I build my own proxy server?
A: The home IP segment is like wearing the same clothes out of the door, sealing a full end. ipipgo's ten million IP pool, each request is a new face, sealing the speed of the IP can not catch up with the speed of the change of the vest.

Q: The free agent doesn't work?
A: Free agents are like paper towels in a public restroom, 8 out of 10 are wasted. ipipgo's Business Agent Guarantee95% or more availableThe professional operation and maintenance is watching 24 hours a day, which is ten blocks more reliable than free agents.

Q: How do I judge the quality of the agent?
A: focus on three points: response speed do not exceed 2 seconds, the success rate should be over 90%, IP purity must meet the standards. ipipgo each proxy node has aReal Life Record of Use, which is harder to recognize than the server room IP.

A guide to avoiding the pitfalls

Seen too many people fall into these pits:

1. did not set the timeout to retry, encountered a lag directly hanging
2. Forgetting to randomize click trajectories, mechanical manipulation reveals its true nature
3. Underestimate the CAPTCHA recognition and regret only when you are blocked.

With ipipgo.Fully automated solutionsIt can avoid most of the minefields. Their original traffic obfuscation technology can disguise crawler requests as if they were being browsed by a real person, which is especially suitable for scenarios that require long-term stable collection.

At the end of the day, crawling is a manual method, and crawlers are industrialized production. Using a good proxy IP is like putting a cloak on the crawler, you can get the data without getting into trouble. The next time you encounter anti-climbing mechanism headache, remember ipipgo such professional tools, than hard just much smarter.