crawlers

简明释义

英[ˈkrɔːləz]美[ˈkrɔːlərz]

n. 履带牵引装置（crawler 的复数形式）

英英释义

单词用法

同义词

反义词

例句

1.Automatic archiving and retrieval with crawlers - based on archive rules set in policies Supported Supported.

使用爬虫自动存档和检索——根据策略中的存档规则设置支持支持。

2.Together, these tactics should help you give search engine crawlers a better idea of your exact location.

总得来说，这些办法应该能够帮助你让搜索引擎爬虫对你的确切地址有一个更好的了解。

3.This helps customers and search engine crawlers.

该页面对客户和搜索引擎都是有所帮助的。

4.On each server, the scheduler will start the crawlers, and the collections will be updated to have the same content.

在每个服务器上，调度程序将启动爬网程序，并且将对集合进行更新以使其具有相同的内容。

5.For instance, many babies are perfectly proficient crawlers, but they decide to try walking because there's more to see and do when they stand upright.

例如，许多婴儿都能非常熟练地爬行，但他们却决定尝试行走，因为当他们站直时，有更多的东西能看和做。

6.There are also a number of non-traditional uses for crawlers, such as archiving content or generating statistics.

爬虫也有一些非传统的用途，例如对内容进行归档或生成统计数据。

7.Therefore, the defined crawlers and the maintenance process might not be running.

因此，已定义的爬网程序和维护处理可能不会运行。

8.Yet how these hairy crawlers negotiate steep, slippery surfaces has been a tangled web for arachnologists.

不过这些毛绒绒的蜘蛛如何在或陡峭或湿滑的表面上立足，一直令蜘蛛学家们颇为费解。

9.Developers need to ensure that their site is friendly to crawlers to enhance visibility.

开发人员需要确保他们的网站对爬虫友好，以增强可见性。

10.The blog post was not indexed by crawlers due to a missing sitemap.

由于缺少网站地图，该博客文章未被爬虫索引。

11.Many crawlers can index web pages quickly, making it easier for users to find information.

许多爬虫能够快速索引网页，使用户更容易找到信息。

12.The website's SEO performance improved after optimizing the site for search engine crawlers.

在为搜索引擎爬虫优化网站后，网站的SEO表现得到了改善。

13.Some crawlers are designed to scrape data from specific websites for research purposes.

一些爬虫被设计用于从特定网站抓取数据以供研究使用。

作文

In the vast realm of the internet, various entities work tirelessly to gather and organize information. Among these entities are crawlers, which are automated programs designed to browse the web and collect data from websites. Understanding the role of crawlers is crucial for anyone interested in web development or digital marketing, as they play a significant part in how search engines function. Crawlers, also known as web spiders or bots, navigate through the vast network of web pages by following links from one page to another. This process is similar to how a spider spins its web, hence the name 'spider' for some of these programs. The primary purpose of crawlers is to index content on the internet. When a user performs a search query, search engines like Google rely on their crawlers to have already gathered and indexed relevant information. This means that the more effectively a website can be crawled, the better its chances of appearing in search engine results. Therefore, understanding how crawlers operate can help webmasters optimize their sites for better visibility. One important aspect of crawlers is their ability to follow links. When a crawler visits a webpage, it scans the content and identifies hyperlinks. It then adds these links to a queue to be visited later, allowing the crawler to build a comprehensive map of the internet. This process is essential for ensuring that all relevant content is discovered and indexed. However, not all links are treated equally; some may be marked with a 'nofollow' tag, which instructs crawlers not to follow those links. This feature gives webmasters control over which parts of their site are prioritized during indexing. Moreover, crawlers also adhere to a set of rules outlined in a file called 'robots.txt'. This file informs crawlers which pages they are allowed to visit and which pages they should avoid. This is particularly useful for protecting sensitive information or preventing crawlers from wasting resources on unimportant pages. A well-configured robots.txt file can significantly enhance a website's SEO strategy. The efficiency of crawlers is also influenced by the speed at which they can access pages. If a website is slow to load, crawlers may abandon it and move on to other sites, which can negatively impact the site's visibility. Therefore, optimizing page load times is another critical consideration for webmasters. In conclusion, understanding crawlers is vital for anyone involved in online content creation or digital marketing. These automated programs serve as the backbone of search engine functionality, ensuring that information is accurately indexed and readily available to users. By optimizing websites for crawlers, webmasters can improve their chances of achieving higher rankings in search results, ultimately driving more traffic to their sites. As the internet continues to evolve, the role of crawlers will remain essential in shaping how we access and interact with information online.

在互联网的广阔领域中，各种实体不懈地工作，以收集和组织信息。在这些实体中，有自动化程序被设计用来浏览网络并从网站收集数据，这些程序被称为爬虫。理解爬虫的角色对任何对网络开发或数字营销感兴趣的人来说都至关重要，因为它们在搜索引擎的功能中发挥着重要作用。爬虫，也被称为网络蜘蛛或机器人，通过跟随网页之间的链接来浏览网络。这一过程类似于蜘蛛编织其网，因此某些程序被称为“蜘蛛”。爬虫的主要目的是对互联网上的内容进行索引。当用户执行搜索查询时，像谷歌这样的搜索引擎依赖于其爬虫已经收集并索引的相关信息。这意味着，一个网站被有效爬取的程度越高，它出现在搜索引擎结果中的机会就越大。因此，了解爬虫如何运作可以帮助网站管理员优化他们的网站，以提高可见性。爬虫的一个重要方面是它们跟随链接的能力。当爬虫访问一个网页时，它会扫描内容并识别超链接。然后，它将这些链接添加到稍后访问的队列中，从而使爬虫能够构建互联网的全面地图。这个过程对于确保所有相关内容被发现和索引至关重要。然而，并不是所有的链接都是平等对待的；有些可能带有“nofollow”标签，这指示爬虫不要跟随这些链接。这个特性让网站管理员能够控制在索引过程中优先考虑其网站的哪些部分。此外，爬虫还遵循一个名为“robots.txt”的文件中列出的一组规则。该文件告知爬虫哪些页面可以访问，哪些页面应避免。这对于保护敏感信息或防止爬虫浪费资源在不重要的页面上非常有用。一个配置良好的robots.txt文件可以显著增强网站的SEO策略。爬虫的效率还受到它们访问页面速度的影响。如果一个网站加载缓慢，爬虫可能会放弃该网站，转向其他网站，这可能会对该网站的可见性产生负面影响。因此，优化页面加载时间是网站管理员需要考虑的另一个关键因素。总之，理解爬虫对任何参与在线内容创作或数字营销的人来说都是至关重要的。这些自动化程序作为搜索引擎功能的支柱，确保信息被准确索引并随时可供用户使用。通过针对爬虫优化网站，网站管理员可以提高其在搜索结果中获得更高排名的机会，最终为他们的网站带来更多流量。随着互联网的不断发展，爬虫的角色在塑造我们如何获取和与在线信息互动方面将继续保持重要性。