Comparison of web search engines

For knowing popular web search engines see, see Most popular Internet search engines.

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 open source or proprietary. The second table lists privacy aspects along with other technical parameters, such as whether the engine provides personalization (alternatively viewed as a filter bubble).

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

Search results

Search engine Company Software distribution license Running non-free JavaScript Pages indexed Daily direct queries Results count Advertisements
Baidu Baidu Proprietary No Unknown Unknown Yes Yes
Bing Microsoft Proprietary No 13.5 billion[1] Unknown Yes Yes
DuckDuckGo DuckDuckGo Mixed[2] No Unknown 10 million[3] No Optional
Gigablast Independent Free No >1 billion[4][5][6] Unknown Yes No
Google Search Google Proprietary No 40 billion[1] 319 million[7][lower-alpha 1] Yes Yes
Soso.com Tencent Proprietary No Unknown Unknown No No
Startpage (and Ixquick) Ixquick Proprietary No Unknown 3.4 million[8] Yes No
YaCy Independent,
Distributed,
Peer-to-Peer		 Free No 1.4 billion[9] 0.13 million [10] Yes No
Yahoo! Search Yahoo! Proprietary No 10 billion[1] Unknown Yes Yes
Yandex Search Yandex Proprietary No >2 billion[11] 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

Search engine Server's location(s) Dedicated servers Data center Cloud computing HTTPS available Tor gateway available Proxy gateway search links available Internet censorship (countries)
Baidu China/Japan No No Unknown China
Bing USA/China Yes Yes(SSL blocked in China) No Unknown China
DuckDuckGo[12] USA No Verizon Internet Services Amazon EC2 Yes Yes [13] No No[14]
Gigablast USA Yes[15] Yes[15] No Unknown
Google Search USA Yes Default if signed in[16] No Unknown Argentina,[17]
China
Soso.com China No No Unknown China
Startpage (and Ixquick) USA/Netherlands[18] Yes[19][20] yes[19][20] No[19][20] by default[18] No Yes Unknown
Yahoo! Search USA Partial Yes[21] No Unknown Argentina[17]
Yandex Search Russia Yes Yes[22] No Unknown Unknown

    Tracking

    Search engine HTTP tracking cookies Personalized results[lower-alpha 1][lower-alpha 2] IP address tracking[lower-alpha 3][lower-alpha 2] Information sharing[lower-alpha 2] Browser hijacking[lower-alpha 2]
    Baidu Yes Unknown Unknown Unknown Unknown
    Bing Unknown Unknown Yes[23] Yes[23] Yes[23]
    DuckDuckGo[12] No No No No No
    Gigablast Unknown No No[15] No[15] No[15]
    Google Search Unknown Default[24] Yes[23] Yes[23] Yes[23]
    Soso.com Yes Unknown Unknown Unknown Unknown
    Startpage (and Ixquick) No No[25] No No No
    Yahoo! Search Unknown Unknown Yes[23] Yes[23] Yes[23]
    Yandex Search Unknown Yes[26] Unknown No[27] 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. 1 2 3 4 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

    References

    1. 1 2 3 "Size Google, Bing, Yahoo search (number of web pages)". Retrieved March 23, 2013.
    2. ↑ "Open Source Overview". DuckDuckGo Community Platform. Retrieved 6 June 2014.
    3. ↑ "DuckDuckGo Direct queries per day (28d avg)". Retrieved 20 March 2015.
    4. ↑ Gary Price, "Gigablast Passes the One Billion Page Mark", Search Engine Watch, January 8, 2005 full text
    5. ↑ "About Gigablast". gigablast.com. Retrieved 2014-07-01.
    6. ↑ "FAQ". gigablast.com. Retrieved 2015-04-24.
    7. ↑ Burns, Enid. "Almost 12 Billion U.S. Searches Conducted in July". Retrieved 9 February 2013.
    8. ↑ "Private Suchmaschinen StartPage und Ixquick durchstoßen Grenze von 3 Millionen Suchabfragen täglich" (in German). June 13, 2013. Retrieved March 20, 2015.
    9. ↑ http://www.yacy.net/en/
    10. ↑ http://www.yacy.net/en/
    11. ↑ "SEC Filing 2011" (PDF). Form 20-F. "Our search index includes billions of webpages..": Yandex N.V. 31 December 2011. p. 45. Retrieved 21 April 2012.
    12. 1 2 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". gabrielweinberg.com. Retrieved 2014-07-01.
    14. ↑ "Don't Bubble Us". Retrieved April 3, 2012.
    15. 1 2 3 4 5 "Gigablast - The Private Search Engine". Retrieved August 5, 2013.
    16. ↑ "Google Makes HTTPS Encryption Default for Search". eWeek. Retrieved 2014-03-31.
    17. 1 2 "Yahoo & Google Forced To Censor Search Results in Argentina". Seroundtable. Retrieved 2014-03-31.
    18. 1 2 "Where are your servers located, and how does this impact government/legal requirements to record, share, or hand over data?". support.startpage.com. 2013-06-01. Retrieved 2014-07-01.
    19. 1 2 3 https://support.startpage.com/index.php?/Knowledgebase/Article/View/1001/0/is-startpage-self-hosted-or-hosted-within-a-data-center
    20. 1 2 3 https://support.ixquick.com/index.php?/Knowledgebase/Article/View/1188/0/is-ixquick-self-hosted-or-hosted-within-a-data-center
    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. 1 2 3 4 5 6 7 8 9 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.
    24. ↑ "Turn off search history personalization". Retrieved July 11, 2013.
    25. ↑ "Startpage Protects Your Privacy". Startpage.com. Retrieved 2013-07-21.
    26. ↑ "Компания Яндекс — Персональный поиск". Retrieved May 22, 2013.
    27. ↑ "Privacy Policy – Legal Documents". Yandex.Company. 3.3.1.: LLC Yandex. 15 November 2011. Retrieved 21 April 2012.
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