Comparison of web search engines

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Search engines are listed in tables below for comparison purposes. The first table lists the company behind the engine, volume and ad support. The second table lists privacy aspects along with other technical parameters, such as whether the engine provides personalization (alternatively viewed as a filter bubble). The final table identifies the nature of the software being used as open source or proprietary.

Many search services are not listed, including historical ones that have gone obsolete.

Search results[edit]

Search engine Company Software distribution license Pages indexed Daily direct queries Results count Ads
Baidu Baidu Proprietary Unknown Unknown Yes Yes
Bing Microsoft Proprietary 13.5 billion[1] Unknown Yes Yes
Blekko Blekko Proprietary Unknown 1 million[2] No Yes
DuckDuckGo DuckDuckGo Mixed[3] Unknown 5 million[4][5] No Optional
Gigablast Independent Free >1 billion[6][7] Unknown Yes No
Google Search Google Proprietary 40 billion[1] 319 million[8][a] Yes Yes Tencent Proprietary Unknown Unknown No No
Startpage (and Ixquick)[9] Ixquick Unknown Unknown Unknown Yes Yes
Yahoo! Search Yahoo! Proprietary 10 billion[1] Unknown Yes No
Yandex Search Yandex Unknown >2 billion[10] Unknown Yes Yes
  1. ^ Assuming 9.9 billion monthly searches is average, and using 31 days as the average length of a month.

Digital rights[edit]

Search engine Server's location(s) HTTPS available Tor gateway available Proxy gateway available[clarification needed] Internet censorship (countries) HTTP tracking cookies Personalized results[a][b] IP address tracking[c][b] Information sharing[b] Browser/platform tracking[b][clarification needed]
Baidu China/Japan No No Unknown China Yes Unknown Unknown Unknown Unknown
Bing USA/China Yes(SSL connection is blocked in China) No Unknown China(both site located in China( Chinese edition of global site( Unknown Unknown Yes[11] Yes[11] Yes[11]
DuckDuckGo[12] USA Yes Yes [13] Yes No[14] No No No No No
Gigablast USA Yes[15] Yes[15] No Unknown Unknown No No[15] No[15] No[15]
Google Search USA Default if signed in[16] No Unknown Argentina[17] Unknown Default[18] Yes[11] Yes[11] Yes[11] China No No Unknown China Yes Unknown Unknown Unknown Unknown
Startpage (and Ixquick) USA/Netherlands[19] by default[19] No Yes China Unknown No[20] No No No
Yahoo! Search USA Yes[21] No Unknown Argentina[17] Unknown Unknown Yes[11] Yes[11] Yes[11]
Yandex Search Russia Yes[22] No Unknown Unknown Unknown Yes[23] Unknown No[24] Unknown
  1. ^ The results of the search are arranged for the user in accordance to his/her interests as determined from previous search queries or other information available to the search engine.
  2. ^ a b c d Statement cannot be verified to be actual true as the information is handled by servers not accessed by the public.
  3. ^ Tracking the user has to be conducted in order to provide personalized search results.

See also[edit]


  1. ^ a b c "Size Google, Bing, Yahoo search (number of web pages)". Retrieved March 23, 2013. 
  2. ^
  3. ^ "Open Source Overview". DuckDuckGo Community Platform. Archived from the original on 6 June 2014. Retrieved 6 June 2014. 
  4. ^
  5. ^ "Duck Duck Go Instant Answer API". DuckDuckGo. Retrieved 31 March 2014. 
  6. ^ Gary Price, "Gigablast Passes the One Billion Page Mark", Search Engine Watch, January 8, 2005 full text
  7. ^ "About Gigablast". Retrieved 2014-07-01. 
  8. ^ Burns, Enid. "Almost 12 Billion U.S. Searches Conducted in July". Retrieved 9 February 2013. 
  9. ^
  10. ^ "SEC Filing 2011". Form 20-F. "Our search index includes billions of webpages..": Yandex N.V. 31 December 2011. p. 45. Retrieved 21 April 2012. 
  11. ^ a b c d e f g h i Johnson, Kevin; Martin, Scott; O'Donnell, Jayne; Winter, Michael (June 15, 2013). "Reports: NSA Siphons Data from 9 Major Net Firms". USA Today. Retrieved June 6, 2013. 
  12. ^ Holwerda, Thom (June 21, 2011), "DuckDuckGo: The Privacy-centric Alternative to Google", OSNews, retrieved March 30, 2012 
  13. ^ Weinberg, Gabriel (2010-08-10). "DuckDuckGo now operates a Tor exit enclave". Retrieved 2014-07-01. 
  14. ^ "Don't Bubble Us". Retrieved April 3, 2012. 
  15. ^ a b c d e "Gigablast - The Private Search Engine". Retrieved 2013. 
  16. ^ "Google Makes HTTPS Encryption Default for Search". eWeek. Retrieved 2014-03-31. 
  17. ^ a b "Yahoo & Google Forced To Censor Search Results in Argentina". Seroundtable. Retrieved 2014-03-31. 
  18. ^ "Turn off search history personalization". Retrieved July 11, 2013. 
  19. ^ a b "Where are your servers located, and how does this impact government/legal requirements to record, share, or hand over data?". 2013-06-01. Retrieved 2014-07-01. 
  20. ^ "Startpage Protects Your Privacy". Retrieved 2013-07-21. 
  21. ^ Danny Sullivan (22 January 2014). "Yahoo Search Goes Secure". Search Engine Land. Retrieved 31 March 2014. 
  22. ^ "Yandex.Direct switches to HTTPS". Yandex. Retrieved 31 March 2014. 
  23. ^ "Компания Яндекс — Персональный поиск". Retrieved May 22, 2013. 
  24. ^ "Privacy Policy – Legal Documents". Yandex.Company. 3.3.1.: LLC Yandex. 15 November 2011. Retrieved 21 April 2012.