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How to Web Scrape without Getting Blocked


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Web scraping is being used to collect data in a variety of businesses, including e-commerce, banking, marketing, and research. It may, however, be a tricky business, since it frequently ends in being blocked by anti-bot systems. Regrettably, this can stymie your growth and squander precious time and money. Learn why this happens and how to Web Scrape without Getting Blocked in the sections below.

Why Are web scrape without getting blocked?

Before we go into how to prevent detection during online scraping, it’s important to understand why scrapers are restricted in the first place. The following are the most prevalent reasons:

1. There is a lot of traffic

Heavy traffic is one of the primary reasons why web scrape without getting blocked. When a website receives a large number of requests in a short period of time, the system may raise an alarm. This is especially true for websites that are not designed for large traffic, such as smaller e-commerce sites.

2. Detection of Automation

Many websites can readily determine whether or not people interact with them using an automated tool, such as a scraper. When such acts are detected, the user may be blocked. Some websites, for example, may track the frequency and time of queries, as well as the sequence of activities made by the scraper. If the queries appear to be automated, the user may be blocked by the website.

3. IP censorship

When accessing a website with anti-bot measures, each IP is awarded a score based on a variety of characteristics. This contains behavioral history, bot activity associations, geolocation, and so on. Your scraper may be identified and banned based on the data.

4. Traps for honeypots

Some websites purposefully insert hidden links and pages in order to catch web scrapers. When bots try to access these pages, they are blocked. For example, there may be a concealed link to a page with a bogus product or review. If the scraper tries to visit this page, it will be blocked by the website.

5. Fingerprinting

Browser fingerprinting is frequently used by websites to detect automated technologies. This method gathers information about a user’s browser and operating system, such as the User Agent, language, time zone, and other browser data. If the website concludes that the fingerprint matches that of a scraper, the user will be blocked.


CAPTCHAs are a popular way for websites to detect and stop scrapers. They are intended to determine if a user is human by providing them with a challenging problem that automated methods cannot handle, such as recognizing a group of photographs. If the scraper is unable to remedy the problem, the website will ban it.

As you can see, websites employ a variety of tactics to detect bots and restrict them access. That is why it is critical to understand how they operate in order to adopt detection avoidance tactics.

How to Stay Unblocked While Web Scraping

Now that we know why web scrapers are restricted, we’ll look at some ways to prevent being stopped in the future.

1. Bypass Anti-bot Systems Using an API

Anti-bot systems may be circumvented by employing tactics such as browser spoofing, randomizing durations between requests, and using a new User-Agent on each request.

All of this and more is done by ZenRows online scraping API to guarantee you extract the data you need from any secured website. It is easy to include into any workflow because it is compatible with all programming languages.

2. Headless browsers and stealth plugins should be used.

When using headless browsers, websites may struggle to recognize automated technologies. They lack a user interface and are programmed to successfully replicate human interactions. They do, however, have automation marks that anti-bot systems can identify. The approach is to use plugins to conceal these attributes so that scraping may continue uninterrupted.

3. Custom and rotating request headers should be used.

The HTTP request headers include important information about the client who is making the request. Setting actual request headers is thus one of the most effective techniques to avoid anti-bot monitoring. This entails simulating a genuine user by providing headers such as User-Agent, Accept-Language, Accept-Encoding, and so on.

Otherwise, if your headers are wrongly structured or mismatched, your scraper will be stopped. To minimize suspicion, it is also vital to cycle distinct headers for each request.

4. Utilize Premium Proxies

Proxies can be an excellent solution to get around IP blocking. By utilizing multiple IP addresses, the scraper’s queries will seem as those of other users, making it more difficult for the website to discover and ban them.

Although utilizing free proxies may seem appealing, they are frequently unstable and are quickly discovered by anti-bot systems. Premium proxies, on the other hand, give residential IP addresses to increase anonymity and help you stay under the radar.

5. CAPTCHAs should be avoided.

CAPTCHAs are one of the most widely used techniques for websites to detect and stop scrapers. In this regard, you have two options: fix them or avoid triggering them.

If you choose the former option, you may use solution services, which hire genuine individuals to pass the problems for you. However, if you scrape at scale, this may be rather pricey. However, if you modify your bot to act as humanly as possible, you won’t have to deal with them at all.

6. Stay away from browser fingerprinting.

Browser fingerprinting may be used by websites to detect automated technologies. This entails gathering information on the user’s browser and operating system.

To circumvent this, use multiple User Agents, languages, time zones, and other browser information that simulates a human. Another excellent rule of thumb is to submit your requests at different times throughout the day, and to often forge and cycle TLS fingerprints.

7. Stay away from honey pot traps.

Honeypot traps are intended to lure bots, however they are avoidable. To that aim, you can use techniques like as link analysis, avoiding hidden links, and looking for certain patterns in the HTML code.


Here, we collect the data how web scrape without getting blocked? So, Many sectors rely on online scraping to obtain data, but it is not without issues. Most current websites include anti-bot systems to identify and block fraudulent traffic, which sadly prevents scrapers from accessing the site. You may spend the time fortifying your scraper with the approaches described above, or you can go for a quicker and more resource-efficient option: ZenRows. This web scraping API includes a sophisticated anti-bot bypass toolbox to assure the success of your project. Use the 1,000 free API credits to put it through its paces.


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