![]() ![]() You can manage which fields the web crawler uses to create the content hash. The crawler adds the additional URL at which the content was discovered. If it does exist, the crawler updates the existing document instead of saving a new one. ![]() If it doesn’t find one, it saves a new document to the index. The web crawler then checks your index for an existing document with the same content hash. More specifically, the crawler combines the values of specific fields, and it hashes the result to create a unique "fingerprint" to represent the content of the web document. The crawler identifies duplicate content intelligently, ignoring insignificant differences such as navigation, whitespace, style, and scripts. If you manage your site’s HTML source files, see Canonical URL link tags to learn how to embed canonical URL link tag elements in pages that duplicate the content of other pages. The url field represents the canonical URL, or the first discovered URL if no canonical URL is defined. The document’s url and additional_urls fields represent all the URLs where the web crawler discovered the document’s content - or a sample of URLs if more than 100. Duplicate document handling editīy default, the web crawler identifies groups of duplicate web documents and stores each group as a single document in your index. See Elastic crawler configuration settings for more information. The User Agent header can be changed in the enterprise-search.yml file. The default User Agent for the Elastic web crawler is Elastic-Crawler ().įor example, in version 8.6.0 the User Agent is Elastic-Crawler (8.6.0).Įvery request sent by the Elastic crawler will contain this header. The User Agent is a request header that allows websites to identify the request sender. If you leave only the default entry point /, the crawl will end immediately, since / is disallowed. ![]() When you restrict a crawl to specific paths, be sure to add entry points that allow the crawler to discover those paths.įor example, if your crawl rules restrict the crawler to /blog, add /blog as an entry point. The following table provides various examples of crawl rule matching: If using this rule, begin your path pattern with \/ or a metacharacter or character class that matches /. You can test Ruby regular expressions using Rubular. Metacharacters, character classes, and repetitions. In addition to literal characters, the path pattern may include The path pattern is a regular expression compatible with the Ruby language regular expression engine. The rule matches when the path pattern matches anywhere within the path. The rule matches when the path pattern matches the end of the path. If using this rule, begin your path pattern with /. The rule matches when the path pattern matches the beginning of the path (which always begins with /). The path pattern is a literal string except for the character *, which is a meta character that will match anything. You can manage the sitemaps for a domain through the Kibana UI: Note that you can choose to submit URLs to the web crawler using sitemaps, entry points, or a combination of both. ![]() If the website you are crawling uses sitemaps, you can specify the sitemap URLs. If your domain has many pages that are not linked from other pages, it may be easier to reference them all via a sitemap. See robots.txt files to learn about managing robots.txt files.Īdd multiple entries, if some pages are not discoverable from the first entry point.įor example, if your domain contains an “island” page that is not linked from other pages, simply add that full URL as an entry point. Entry points and sitemaps edit Entry points editĮach domain must have at least one entry point.Įntry points are the paths from which the crawler will start each crawl.Įnsure entry points for each domain are allowed by the domain’s crawl rules, and the directives within the domain’s robots.txt file. Manage the domains for a crawl in the Kibana UI.Īdd your first domain on the getting started screen.įrom there, you can view, add, manage, and delete domains. ![]()
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