javascript - 如何避免被采集网站？-PHP Tutorial-php.cn

Home

Backend Development

PHP Tutorial

javascript - 如何避免被采集网站？

WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB

Jun 06, 2016 pm 08:32 PM

javascriptphpstatisticscollection

javascript - 如何避免被采集网站？

连续几周如此，联通电信会变，每次访问ip会变，访问时间0，频率很高，地区不变，是不是有人采集我的站？如何避免？谢谢！

回复内容：

javascript - 如何避免被采集网站？

连续几周如此，联通电信会变，每次访问ip会变，访问时间0，频率很高，地区不变，是不是有人采集我的站？如何避免？谢谢！

1、采用动态不规则的html标签
2、限制IP

和搜索引擎没有矛盾的，完全可以用nginx判断是否是搜索引擎爬虫，指引到一个固定的html结构的里边，以前就这样做过

避免是很难的，只能说尽量提高抓取的成本。

常见都是在nginx或者程序中加入频率限制（rate limit）

把网站关了即可.

在robots.txt中添加屏蔽抓取的策略，就能少被采集了

关键是你又希望搜索引擎来爬你；

所以这是矛盾的，

只能尽量做好；

you can't.

楼上都没答到点子上，一般采集无非就是用硬抓取，如file_get_contents，和模拟抓取，如casperjs，我曾经用casperjs来写爬虫，速度实在太慢，所以casperjs爬虫不太可行，如果只是像file_get_contents之类的，后台分析日志，凡是加载的网页没有加载对应的css和js文件的，全部ban掉
希望写小偷程序的人不要看到这个答案，要不除了限制请求频率根本没法了，哦忘了，我就是专门写小偷程序的

cnzz统计的问题，加个谷歌统计对比下，流量差距就出来了，有10倍左右，猜测应该是百度蜘蛛之类的，识别为用户了，我的展也这样

Statement

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

PHP's Current Status: A Look at Web Development TrendsApr 13, 2025 am 12:20 AM

PHP remains important in modern web development, especially in content management and e-commerce platforms. 1) PHP has a rich ecosystem and strong framework support, such as Laravel and Symfony. 2) Performance optimization can be achieved through OPcache and Nginx. 3) PHP8.0 introduces JIT compiler to improve performance. 4) Cloud-native applications are deployed through Docker and Kubernetes to improve flexibility and scalability.

PHP vs. Other Languages: A ComparisonApr 13, 2025 am 12:19 AM

PHP is suitable for web development, especially in rapid development and processing dynamic content, but is not good at data science and enterprise-level applications. Compared with Python, PHP has more advantages in web development, but is not as good as Python in the field of data science; compared with Java, PHP performs worse in enterprise-level applications, but is more flexible in web development; compared with JavaScript, PHP is more concise in back-end development, but is not as good as JavaScript in front-end development.

PHP vs. Python: Core Features and FunctionalityApr 13, 2025 am 12:16 AM

PHP and Python each have their own advantages and are suitable for different scenarios. 1.PHP is suitable for web development and provides built-in web servers and rich function libraries. 2. Python is suitable for data science and machine learning, with concise syntax and a powerful standard library. When choosing, it should be decided based on project requirements.

PHP: A Key Language for Web DevelopmentApr 13, 2025 am 12:08 AM

PHP is a scripting language widely used on the server side, especially suitable for web development. 1.PHP can embed HTML, process HTTP requests and responses, and supports a variety of databases. 2.PHP is used to generate dynamic web content, process form data, access databases, etc., with strong community support and open source resources. 3. PHP is an interpreted language, and the execution process includes lexical analysis, grammatical analysis, compilation and execution. 4.PHP can be combined with MySQL for advanced applications such as user registration systems. 5. When debugging PHP, you can use functions such as error_reporting() and var_dump(). 6. Optimize PHP code to use caching mechanisms, optimize database queries and use built-in functions. 7

PHP: The Foundation of Many WebsitesApr 13, 2025 am 12:07 AM

The reasons why PHP is the preferred technology stack for many websites include its ease of use, strong community support, and widespread use. 1) Easy to learn and use, suitable for beginners. 2) Have a huge developer community and rich resources. 3) Widely used in WordPress, Drupal and other platforms. 4) Integrate tightly with web servers to simplify development deployment.

Beyond the Hype: Assessing PHP's Role TodayApr 12, 2025 am 12:17 AM

PHP remains a powerful and widely used tool in modern programming, especially in the field of web development. 1) PHP is easy to use and seamlessly integrated with databases, and is the first choice for many developers. 2) It supports dynamic content generation and object-oriented programming, suitable for quickly creating and maintaining websites. 3) PHP's performance can be improved by caching and optimizing database queries, and its extensive community and rich ecosystem make it still important in today's technology stack.

What are Weak References in PHP and when are they useful?Apr 12, 2025 am 12:13 AM

In PHP, weak references are implemented through the WeakReference class and will not prevent the garbage collector from reclaiming objects. Weak references are suitable for scenarios such as caching systems and event listeners. It should be noted that it cannot guarantee the survival of objects and that garbage collection may be delayed.

Explain the __invoke magic method in PHP.Apr 12, 2025 am 12:07 AM

The \_\_invoke method allows objects to be called like functions. 1. Define the \_\_invoke method so that the object can be called. 2. When using the $obj(...) syntax, PHP will execute the \_\_invoke method. 3. Suitable for scenarios such as logging and calculator, improving code flexibility and readability.

See all articles