Web search engines are listed in tables below for comparison purposes. The first table lists the company behind the engine, volume and ad support and identifies the nature of the software being used as free software or proprietary software. The second and third table lists internet privacy aspects along with other technical parameters, such as whether the engine provides personalization (alternatively viewed as a filter bubble).
Defunct or acquired search engines are not listed here.
Search crawlers Current search engines with independent crawlers, as of December 2018. Search engine Founder(s) Company Launched Software distribution license Pages indexed Daily direct queries Results count Advertisements AhmiaJuha Nurmi Juha Nurmi 2014 AOL William von Meister 1999 Baidu Robin Li Yanhong Baidu, Inc 2000 Brave Search Brendan Eich and Brian Bondy Brave Software, Inc. 2021 data-sort-value="0" data-sort-value="0" Nguyễn Thanh Bình, Lê Văn Thanh, and Nguyễn Đức Ngọc Cốc Cốc Ltd. 2013 DuckDuckGo Gabriel Weinberg Duck Duck Go, Inc. 2008 Ecosia Christian Kroll 2009 ExaleadFrançois Bourdoncle and Patrice Bertin Exalead 2000 data-sort-value="0" data-sort-value="0" Fireball Oli Kai Paulus, Helmut Hoffer von Ankershoffen, Nurhan Yildirim, and Benhui Chen Fireball Labs GmbH 1996 Google Search Larry Page, Sergey Brin & Scott Hassan Alphabet Inc. 1997 hundreds of billions 9.022 billion KagiVladimir PrelovacKagi Inc.2018 Kiddle 2014 KidRex 2008 LycosMichael Loren Mauldin 1995 Microsoft Bing Microsoft 1998/2009 data-sort-value="0" data-sort-value="0" Million Short2012 MojeekMarc Smith Mojeek 2004 5 billion NaverKim Sang-Hun Naver Corp. 1999 data-sort-value="0" data-sort-value="0" Petal Huawei 2020 data-sort-value="0" data-sort-value="0" QwantÉric Léandri Qwant 2013 20 billion 10 million Seznam.cz Ivo Lukačovič 1996 Sogou Tencent 2010 data-sort-value="0" data-sort-value="0" StartpageSurfboard Holding BV1998 Swisscows Andreas Wiebe Swisscows 2014 data-sort-value="0" data-sort-value="0" WebCrawler Brian Pinkerton 1994 Yahoo! SearchJerry Yang & David Filo Yahoo! 1995 data-sort-value="0" Yandex SearchArkady Volozh Yandex 1997 >2 billion data-sort-value="0"
Digital rights
Search engine Server's location(s) Dedicated servers Data center Cloud computing HTTPS available Tor gateway available Proxy gateway search links available Ahmia AOL Baidu China Blackle Brave Search Vietnam DuckDuckGo USA Verizon Internet Services Amazon EC2 Ecosia USA Exalead Fireball Google Search USA Google data centers KagiMultipleGoogle Cloud Platform Kiddle KidRex Lycos Microsoft Bing USA / China Mojeek UK Custodian Data Centres Naver Petal France Qwant France Seznam.cz Sogou China StartpageNetherlands Swisscows WebCrawler Yahoo! Search USA Yandex Search Russia
Tracking and surveillance
Search engine HTTP tracking cookies Personalized results IP address tracking Information sharing Warrantless wiretapping of unencrypted backend traffic Ahmia AOL Baidu Blackle Brave Search DuckDuckGo Ecosia Exalead Fireball Google Search Kiddle KidRex Lycos Microsoft Bing Mojeek Naver Petal Qwant Seznam.cz Sogou Swisscows WebCrawler Yahoo! Search Yandex Search
See also Comparison of webmail providers – often merged with web search engines by companies that host both services List of search engines Search engine privacy
References