Proxy IP Automated Scroll to Page Elements: Proxy IP Automated Page Scroll Capture

What exactly is the use of proxy IPs for automatic scrolling crawling?

The old iron engaged in data collection must have encountered this situation: the target site set up an anti-climbing mechanism, using a fixed IP to vigorously brush the page, not a few times was blocked. At this time, you need a proxy IP totake turns changing armorThe data hidden deep in the web page is pulled out, in conjunction with the automatic page scrolling technology.

To give a real scene: an e-commerce platform product details page, the first 10 data at the top of the page, the remaining 90 have to scroll down three or four screens to load. At this time with the regular crawler can only catch the "tip of the iceberg", with theAutomatic IP switching + page scrollingIt's the only way to fish the data clean.

Realization principle disassembly

The whole process is a three-step process:

1. initialize the proxy pool (get IP list from ipipgo)
2. launch browser instances (each instance is bound to a different IP)
3. Perform scrolling operations and collect data

Here's one.cruxThe scrolling operation will trigger the dynamic loading of the website, and if the same IP is used to operate repeatedly, it will be recognized as a robot in minutes. ipipgo's IP pool is updated with 2 million+ fresh IPs every day, which is just the right solution to this problem.

Hands-on code practice

Demonstrate a simple case with Python+Selenium, remember to install the ipipgo SDK first:

from ipipgo import ProxyPool
from selenium import webdriver

 Initialize the IP pool (go to the ipipgo website to get the token)
proxy = ProxyPool(api_token="your_token_here")

def get_driver().
    ip_info = proxy.get_proxy(type='https') get a new https proxy
    chrome_options = webdriver.ChromeOptions()
    chrome_options.add_argument(f'--proxy-server={ip_info.ip}:{ip_info.port}')
    return webdriver.Chrome(options=chrome_options)

driver = get_driver()
driver.get("Target URL")

 Auto-scroll core code
scroll_pause_time = 2
last_height = driver.execute_script("return document.body.scrollHeight")

while True: driver.execute_script("return document.body.scrollHeight")
    driver.execute_script("window.scrollTo(0, document.body.scrollHeight);")
    time.sleep(scroll_pause_time)
    new_height = driver.execute_script("return document.body.scrollHeight")
    if new_height == last_height.
        last_height = new_height
    last_height = new_height
     Change IP every 3 scrolls
    if driver.execute_script("return window.pageYOffset") % 3 == 0: driver.quit()
        driver.quit()
        driver = get_driver()

Why do you recommend ipipgo?

There are so many proxy service providers in the market, but the real test downipipgo has three brushes.::

1. ExclusiveIP Quality Inspection SystemAutomated filtering of failed nodes
2. Supporton-demand billingAs much as you can use.
3. Provision of off-the-shelfBrowser plug-insThe little guy can get started too.

Their IP survival rate can reach 98%, which is a big step higher than their peers. Especially when doing e-commerce data collection, using theirResidential IP Package, masquerading as a real user visit, the success rate is directly doubled.

Frequently Asked Questions QA

Q: What should I do if my IP is blocked halfway through scrolling?
A: Setting in ipipgo backendautomatic fusing mechanismIt detects IP failures and switches immediately, and also automatically replenishes the pool with new IPs.

Q: Slow page loading affects efficiency?
A: Putting the ipipgo'sStatic Resource Accelerationfunction is turned on, their CDN nodes can speed up around 40%

Q: What about the need to capture JavaScript rendered content?
A: with ipipgo'sHeadless Browser ServiceThe HTML is rendered directly, so you don't have to build your own environment.

Guide to avoiding the pit

The newbie's common mistakeThree mistakes.::
1. Rolling intervals set too short (2-5 seconds recommended)
2. Forgetting to clear the browser cache (creating a new instance every time you change IPs)
3. Failure to handle page pop-ups (which interrupt scrolling)

One final note: Although ipipgo's IPs are of superior quality, don't use them to death. Reasonable settingsRequest frequency, in conjunction with random scrolling stops, is the long term solution. Their technical customer service is quite professional, and you can ask for direct work orders for specific problems.