Shulou(Shulou.com)06/03 Report--

The main content of this article is to explain "what is the reason why the website will carry out anti-crawler?" interested friends might as well take a look. The method introduced in this paper is simple, fast and practical. Next, let the editor take you to learn "what is the reason why the website will carry out anti-crawler?"

There are many businesses or web pages on the Internet that do not need users to log in. These pages that do not need to log in usually contain a lot of aggregated information, such as news portals, video portals and search engines, which are public and can be captured by crawlers.

Why should the website be anti-crawler?

Crawlers account for a high proportion of the total PV, resulting in a waste of server resources.

The cost of using the program to make URL requests to obtain data is very low, which causes a large number of low-quality web crawlers to run rampant on the network, resulting in a large number of visits to the target website, resulting in a large consumption of server resources, slightly affecting the access speed of normal users, or causing website services to be unavailable.

The resources that the company can inquire about for free are acquired in batches and lose their competitiveness.

The price of many software can be queried directly in the non-login state, if there is no worry, competitors can copy web page information in batches and grab the price of the software. Resources and other information, over a long time, the competitiveness of enterprises will be greatly reduced.

What kind of reptile are we fighting?

1. Malicious competition, scalpers use malicious crawlers to pass through the airline's low-cost tickets.

At the same time, a large number of machine requests to occupy seats, resulting in continuous occupation of flight seat resources and waste, resulting in high flight vacancy rates bring business losses to airlines and damage the interests of normal users.

2. Nearly 60% of Internet visits are caused by crawlers, and the site has set restrictions on these crawlers to prevent crawlers from crawling data.

Even when grabbing data, the reptile will still work tirelessly. Because some crawlers are hosted on some servers and are in an unclaimed state, no one stops.

3. Peer competitors.

Companies need data to analyze the defects of their own products and the information of competitors. Will crawl past competitors' information, such as e-commerce sites. Recruitment websites will crawl the product information of competitors, in order to ensure the competitiveness of their products, enterprises often aim at this kind of crawler products.

4. The number of hits on the website.

The purpose of advertising is often to get in touch with the potential consumers in line with the location of the website, but because of the click fraud caused by malicious crawlers, the click rate of the advertisement is falsely high, making the website bear the click cost that should not have been borne. It has brought the actual loss of benefits to the website.

At this point, I believe you have a deeper understanding of "the reason why the website will carry out anti-crawler". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.