YahooCacheSystem
GoodBotVerifiedBOTA specialized crawler used by Yahoo to fetch and cache web content for search result previews and link rendering. Operated by Yahoo.
What is YahooCacheSystem?
YahooCacheSystem is an automated agent operated by Yahoo that retrieves web pages to generate snapshots and cached versions of content. It functions as part of the broader Yahoo Search ecosystem, ensuring that users can view accurate representations of indexed pages directly from search results. By maintaining these caches, the system improves search speed and provides a fallback mechanism when the original source content is temporarily unavailable.
Identification
YahooCacheSystemWhy it crawls your site
The bot crawls websites to populate Yahoo's internal cache, which allows the search engine to display page previews and snippets to users without requiring a live request to the host server for every search query. This process helps Yahoo provide a faster, more reliable search experience. Site owners can verify this bot by checking that the source IP addresses originate from Yahoo's verified network infrastructure and by observing its adherence to standard robots.txt directives.
Block or allow YahooCacheSystem
Add a Disallow rule for YahooCacheSystem in your robots.txt file. You can also block at the server level using your web server configuration or CDN firewall rules to filter requests matching the user-agent string.
# Block YahooCacheSystem from crawling your entire site User-agent: YahooCacheSystem Disallow: / # Allow YahooCacheSystem full access User-agent: YahooCacheSystem Allow: /
Ensure your robots.txt allows YahooCacheSystem. Verify requests by checking the user-agent string.
Traffic & trends
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Related bots
Other crawlers operated by Yahoo.
Links & references
Data sources
This profile is compiled from the following sources.