Metasearch engines

Perplexity AI, Inc., or simply Perplexity, is an American privately held software company offering a web search engine that processes user queries and synthesizes responses. Perplexity products use large language models and incorporate real-time web search capabilities, providing responses based on current Internet content, citing sources used. Its real-time search engine is called Sonar and is based on Meta's Llama model. A free public version is available, while a paid Pro subscription offers access to more advanced language models and additional features.

Trivago N.V. is a German technology company owned by US-based Expedia Group that specializes in travel and lodging. Its main product is the Trivago online search engine and accommodation booking website that lists prices provided by hotels and other booking websites.

search tool that uses other search engines' data to produce their own results from the Internet

Skyscanner Ltd. is a British search aggregator and travel agency based in Edinburgh, Scotland and operating since 2002.

internet portal

Momondo (stylised momondo) is a travel fare aggregator and travel fare metasearch engine. momondo was founded in Denmark and is today managed by KAYAK, part of Booking Holdings.

fare aggregator and travel metasearch engine

Searx (; stylized as searX) is a discontinued free and open-source metasearch engine, available under the GNU Affero General Public License version 3, with the aim of protecting the privacy of its users. To this end, Searx does not share users' IP addresses or search history with the search engines from which it gathers results. Tracking cookies served by the search engines are blocked, preventing user-profiling-based results modification. By default, Searx queries are submitted via HTTP POST, to prevent users' query keywords from appearing in webserver logs. Searx was inspired by the Seeks pr

WebCrawler is a search engine, and one of the oldest surviving search engines on the web today. For many years, it operated as a metasearch engine. WebCrawler was the first web search engine to provide full-text search.

HotBot is a Canadian web search engine owned by HotBot Limited, whose key principal is Kristen Richardson. The search engine was initially launched in North America in 1996 by Wired magazine. During the 1990s, it was one of the most popular search engines on the World Wide Web. The domain was sold in 2016 and was used for other unrelated purposes for several years. Hotbot search engine was relaunched in 2022 under new ownership and with a different technology.

HotelsCombined, a unit of Booking Holdings, is a hotel metasearch engine founded in 2005, with headquarters in Sydney, Australia.

Kagi ( ) (stylized as kagi) is a paid ad-free search engine developed by Kagi Inc., a company located in Palo Alto, California.

Kiwi.com is an international online travel agency headquartered in the Czech Republic. Kiwi.com provides booking for airline tickets and its ticket search features Kiwi.com’s "virtual interlining" innovation that combines airlines in a single itinerary. Kiwi.com’s search engine processes 100 million flight searches every day. The company sold 25 million flight seats in 2023.

MetaGer is a metasearch engine focused on protecting users' privacy. It is based in Germany and is hosted as a cooperation between the German NGO 'SUMA-EV - Association for Free Access to Knowledge' and the University of Hannover.

Dogpile is a metasearch engine for information on the World Wide Web that fetches results from Google, Yahoo!, Yandex, Bing and other popular search engines, including those from audio and video content providers, such as Yahoo!.

FilesTube was a metasearch engine established in 2007, which specialized in searching files in various file sharing and uploading services, such as Mega. It also included sections for videos, games, lyrics and software.

software that aggregates search results from various search engines

MetaCrawler is a search engine. It is a registered trademark of InfoSpace and was created by Erik Selberg.