Expedia Crawler: Travel Data Crawl

Why do I have to use a proxy IP to capture travel data?

Brothers engaged in travel data crawl should understand, Expedia such a large platform of anti-climbing mechanism with the security checks like, caught the suspicious traffic to the death of the seal. Last month I personally saw a novice, with their own home broadband even grabbed two hours, the results of the IP directly be blacklisted, even the normal booking of hotels are affected.

That's when it's time to rely onProxy IP PoolThe first thing you need to do is to get your hands on a new one, and you'll be able to do that. As if you want to go to the popular scenic spots queuing, their own rows are easy to be bulls on, but if you can always change the different ID card into the field, is not much more stable. ipipgo home dynamic residential agent is to do this, the world's 200 + countries real residential IP, with the use of with the change is not afraid of sealing.

Hands-on with an Expedia crawler.

Let's start with a real code example, using Python's requests library. There are just three key points:Random UA header,request interval,Agent RotationThe

import requests
from itertools import cycle
import time
import random

 List of proxies from the ipipgo backend
proxies = [
    "http://user:pass@gateway.ipipgo.com:8000",
    "http://user:pass@gateway.ipipgo.com:8001".
     ... More Proxy Nodes
]
proxy_pool = cycle(proxies)

headers_list = [
    {'User-Agent': 'Mozilla/5.0 (Windows NT 10.0) AppleWebKit/537.36'},
    {'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7)'}, ...
     ... Prepare 10+ UAs
]

def scrape_hotel(url).
    try.
        proxy = next(proxy_pool)
        headers = random.choice(headers_list)
        response = requests.get(url,
                              proxies={"http": proxy, "https": proxy},
                              headers=headers,
                              timeout=15)
         Processing the response data...
        time.sleep(random.uniform(2,5)) Randomize the wait for anti-routine
    except Exception as e.
        print(f "Crawl error: {e}, switch to next proxy")

Note that there are two potholes here:Don't use a data center proxy(easily recognized).Must change UA for each request. I've tested this before, using ipipgo's residential proxy + this configuration, and it ran for three days straight without triggering the captcha.

Proxy IP Selection Guide to Avoid Pitfalls

Here's the kicker.session holdSome Expedia APIs want to take cookies, so you have to use ipipgo'sSession Binding FunctionIf you do, make sure you use the same exit IP for the entire session cycle, or you'll be bouncing authentication in minutes.

Practical Frequently Asked Questions QA

Q: What can I do about slow proxy IPs?
A: Prioritize geographically proximate nodes, such as catching North American data with ipipgo's Chicago node. If the delay is more than 2 seconds, it is recommended to set up a retry mechanism in the code.

Q: Why do I still get blocked after using a proxy?
A: Check three points: 1. request header with or without cookie parameters 2. whether there are high-frequency repeat operations 3. proxy IP purity. You can use ipipgo's detection interface to test the first live.

Q: How do I break Expedia's captcha?
A: Don't be hardcore, just give up the current proxy when you encounter CAPTCHA. ipipgo's pool of proxies areAutomatic phase-out mechanism, the tagged IP will be temporarily taken offline.

Tell the truth.

As a final reminder, grabbing data should neverDon't go for more than you can handle.. I've seen people open 50 threads and dislike them so hard that they end up blocking the entire ASN segment. Setting the rate reasonably (1-3 times/minute is recommended), together with ipipgo's intelligent routing, is the long-term solution. After all, what we want is data, not to compete with the platform security team, right?