It seems like you're referring to a search engine! There are many search engines available, and I'll provide an overview of some popular ones.

Popular Search Engines:

1、Google (google.com): The most widely used search engine, known for its relevance and accuracy.
2、Bing (bing.com): Microsoft's search engine, which also powers Yahoo!'s search results.
3、Yahoo! (yahoo.com): While not a traditional search engine, Yahoo! uses Bing's results and adds its own features.
4、DuckDuckGo (duckduckgo.com): A privacyfocused search engine that doesn't track users.
5、StartPage (startpage.com): Another private search engine that uses Google's results without tracking users.

Specialized Search Engines:

1、Baidu (baidu.com): A popular search engine in China, known for its languagespecific results.
2、Yandex (yandex.com): A Russian search engine with a strong presence in Eastern Europe.
3、Qwant (qwant.com): A European search engine that emphasizes user privacy.

Meta Search Engines:

1、MetaCrawler (metacrawler.com): A search engine that aggregates results from multiple sources.
2、Dogpile (dogpile.com): Another meta search engine that combines results from various search engines.

Other Notable Search Engines:

1、TorSearch (torsche.rocks): A search engine that indexes .onion sites on the Tor network.
2、Shodan (shodan.io): A search engine for internetconnected devices and services.

These are just a few examples of the many search engines available、Do you have a specific use case or requirement in mind?