Что делать, если в процессе выполнения скрапинга ваш IP заблокировали?

Web scraping is the collection of a large amount of data from one or more websites, which involves frequent requests to the server of the site for desired information. Such traffic by网站 owners can be considered unwanted because:

• it distorts visitor statistics with real people;
• increases network usage;
• slows down the website’s response time to user requests up to a complete slowdown;
• can lead to theft of commercial and other information.

What to do to avoid IP blocking

First of all, familiarize yourself with the rules of the site you are going to scrape — if there is a prohibition on scraping, then you are likely to get an IP ban with high probability. Specifically, you might be blocked for:

1. Too many requests per unit of time from one IP or a pool of IPs;
2. Creating high load on the targeted website;
3. Falling into a bot trap;
4. The parser does not resemble actions of a real user.
   When you are blocked by IP, you will either lose access to the specific site entirely or to individual pages. If you have been banned, here is what you can do.

What to do when your IP is banned

1. Contact support to have you unblocked. Of course, if you were scraping and it is prohibited by the site rules or hosting provider, then chances of being unblocked are slim. On the other hand, if you did nothing wrong and your IP is still blocked, there might be other explanations. For example, your Internet Service Provider bought a pool of IPs, some of which were already on blacklists, and one of these IPs was assigned to you. After verifying this situation, there are good chances that your IP will be unblocked.
2. Reboot your router. This works if a new whitelisted IP is assigned to you due to dynamic IP address rotation among active users — a common practice among modern providers. However, if a “gray” technical IP is assigned within your internal network, but a static public IP used for Internet access was blocked, then rebooting the router will not help.
3. Use VPN networks. Depending on your VPN provider, the number of IP addresses you can use may range from a few to hundreds of thousands. The larger the available pool, the higher typically the cost of using such a VPN service. If you perform large-scale tasks regularly, you will eventually exhaust the available IPs, which will then take turns getting banned.
4. Make each new scraping request from a different IP. Setting up automatic rotation can help you never get banned. The drawback is that you need a large pool of IP addresses and the ability to configure their auto-rotation.
5. Use anti-detect browsers. Like headless browsers, they have special libraries for proper interaction with websites during scraping. This allows them to emulate real user behavior: page loading, cursor movement, filling out web forms, waiting times, and generally leaving correct digital fingerprints.
6. Use proxy servers. Good proxy providers offer many excellent tools such as IP rotation, a large pool of available IPs, precise targeting, and easy integration with professional software. There are mobile and residential proxies. Mobile proxies are better.

Conclusion

Getting on a blacklist (ban) by IP is not the end of the world. A somewhat technically savvy user can bypass the ban in several ways. If you are a private user with relatively few scraping requests, all the options listed will suit you. If you are a business user, pay attention to the optimal options for you: anti-detect browsers and the use of proxy servers.