Microsoft

AdIdxBot is Microsoft’s advertising-focused crawler used to evaluate landing pages associated with Microsoft Advertising (formerly Bing Ads). It performs targeted fetches to assess page load speed, relevance, redirects, content quality, and policy compliance. These checks help determine ad quality scores, eligibility, and overall user experience. Blocking AdIdxBot, may limit Microsoft’s ability to review landing pages, potentially affecting ad performance. Crawl activity is selective and low-volume, typically triggered when advertisers create or modify campaigns. Its purpose is to ensure that ad destinations meet Microsoft’s standards for safety, usability, and relevance. RobotSense.io verifies AdIdxBot using Microsoft’s official validation methods, ensuring only genuine AdIdxBot traffic is identified.

BingPreview is Microsoft’s rendering and compatibility crawler used to evaluate how webpages appear in browsers and Bing search features. It fetches pages to test layout, mobile responsiveness, JavaScript rendering, and visual elements. These checks help Bing understand how content will display in search results and improve snippet generation and ranking signals tied to user experience. Crawl activity is moderate and often concentrated on pages important to Bing’s index. Its purpose is to simulate real-browser behavior and refine Bing’s presentation quality. RobotSense.io verifies BingPreview using Microsoft’s official validation methods, ensuring only genuine BingPreview traffic is identified.

BingVideoPreview is Microsoft’s crawler for fetching video-related content to generate previews, thumbnails, and metadata for Bing’s video search experiences. It retrieves video files, poster images, structured data, captions, and surrounding context. This crawler does not perform full-site indexing; instead, it focuses specifically on video assets and the information required to power Bing’s video carousels and preview interfaces. Activity is targeted and relatively low-volume, driven by pages that contain or reference video content. RobotSense.io verifies BingVideoPreview using Microsoft’s official validation methods, ensuring only genuine BingVideoPreview traffic is identified.

Bingbot is Microsoft’s primary web crawler, responsible for discovering and indexing content for Bing Search and other Microsoft services. The crawler fetches HTML, structured data, images, and metadata to understand page relevance and ranking signals. Crawl activity varies based on site authority, update frequency, and sitemap signals. Its purpose is to keep Bing’s search index fresh, accurate, and aligned with user search intent across Microsoft platforms. RobotSense.io verifies Bingbot using Microsoft’s official validation methods, ensuring only genuine Bingbot traffic is identified.

MicrosoftPreview is a Microsoft crawler used to render webpages in a browser-like environment for testing, feature evaluation, and content understanding across Microsoft services. It performs fetches that simulate modern browser behavior, including JavaScript execution, layout rendering, and metadata extraction. Unlike Bingbot, it is not used for core indexing but for assessing how pages display in Microsoft products. Activity is moderate and focused on pages relevant to rendering quality checks. Its purpose is to enhance visual accuracy and user experience across Microsoft’s platforms. RobotSense.io verifies MicrosoftPreview using Microsoft’s official validation methods, ensuring only genuine MicrosoftPreview traffic is identified.