The most popular and dominant internet search engine company is “Google” followed by Bing, YANDEX, Yahoo, Baidu, and DuckDuckGo. According to the report from gs.statcounter.com. on search engine market share; Google holds a share of about 91.05%, and the rest hold 8.05% of the total global internet service share.

Google uses one of the most advanced crawlers to store, process, and fetch new pages from a website. It can work automatically or a user can trigger it while searching for new queries. Google uses various types of crawlers to fetch data from the internet. “Googlebots” is the main bot among the google crawlers.

These bots are automatic to scan the data. Whereas, google updates the algorithm for data security and system integration security. To promote different products and services google uses several specialized bots. According to the user’s interest, they can configure the crawling of the Google bots by integrating them into files like robot.txt. For example; the User agent token file and full user agent string.

Types of Google Crawlers

Google uses various types of spider crawlers at the request of the users for specific purposes and outcomes. The list of types of Google robots is as follows;

Common Crawlers

The common crawlers collect more information to build more Google search indexes for analysis and to perform specific crawling. These bots obey the rules of robot.txt. and pursue the links registered IP add. in googlebots.json objects.

Types of Common Crawlers

• Googlebot smartphone
• Googlebot Desktop
• Googlebot Image
• Googlebot Video
• Googlebot store bot
• Googlebot news
• Google-InspectionTool
• GoogleOther
• GoogleOther-Image
• GoogleOther-Video
• Google-Extended

Special-Case Crawlers

The special case crawlers are used for specific products under condition. SC crawlers bind in an agreement of special crawling irrespective of specific products. Certain products employ special-case crawlers when the crawled site and the product have an agreement regarding the crawling procedure. For instance, with consent from the ad publisher, AdsBot ignores the global robots.txt user agent (*). Because they might disregard robots.txt directives, special-case crawlers operate from a different IP range than regular crawlers. The special-crawlers.json object contains the available IP ranges.

Type of Special-Case Crawlers

• AdsBot Mobile Web
• APIs-Google
• AdsBot
• AdSense
• Mobile AdSense
• Google-Safety

User-Triggred Fetcher

Users start user-triggered fetchers to carry out product-specific fetching tasks. For instance, a feature on a website hosted on Google Cloud (GCP) enables users to retrieve an external RSS feed, and Google Site Verifier responds to user requests. Generally, fetchers disregard robots.txt rules as the fetch was requested by a user. The user-triggered-fetchers.json and user-triggered-fetchers-google.json objects disclose the IP ranges that the user-triggered fetchers employ.

Type of User-Triggred Fetcher

• Feedfetcher
• Google Publisher Center
• Google Read Aloud
• Google Site Verifier

Conclusion

Google robots have become an essential part of modern SEO. Most of the content and about 90% of the world population surf, in the realm of the internet. Therefore, it’s better to understand the importance and significance feature of Google bots. This will help to boost the website’s presence and ranking in the Google search engine. However, every search engine optimization is a different process, because the algorithm is different. Each crawler is unique and has a unique way to fetch data and information.