Comparison of web search engines

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For knowing popular web search engines see, see Most popular Internet 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 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 Unknown Unknown Yes No
Yahoo! Search Yahoo! Proprietary No 10 billion[1] Unknown Yes Yes
Yandex Search Yandex Proprietary No >2 billion[9] 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

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See also: Comparison of webmail providers § Digital rights, PRISM, Internet privacy, and 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[10] USA No Verizon Internet Services Amazon EC2 Yes Yes [11] No No[12]
Gigablast USA Yes[13] Yes[13] No Unknown
Google Search USA Yes Default if signed in[14] No Unknown Argentina,[15]
China
Soso.com China No No Unknown China
Startpage (and Ixquick) USA/Netherlands[16] Yes[17][18] yes[17][18] No[17][18] by default[16] No Yes Unknown
Yahoo! Search USA Partial Yes[19] No Unknown Argentina[15]
Yandex Search Russia Yes Yes[20] 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]
[clarification needed]
Baidu Yes Unknown Unknown Unknown Unknown
Bing Unknown Unknown Yes[21] Yes[21] Yes[21]
DuckDuckGo[10] No No No No No
Gigablast Unknown No No[13] No[13] No[13]
Google Search Unknown Default[22] Yes[21] Yes[21] Yes[21]
Soso.com Yes Unknown Unknown Unknown Unknown
Startpage (and Ixquick) No No[23] No No No
Yahoo! Search Unknown Unknown Yes[21] Yes[21] Yes[21]
Yandex Search Unknown Yes[24] Unknown No[25] 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. ↑ 2.0 2.1 2.2 2.3 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. ↑ 1.0 1.1 1.2 Lua error in package.lua at line 80: module 'strict' not found.
  2. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  3. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  4. ↑ Gary Price, "Gigablast Passes the One Billion Page Mark", Search Engine Watch, January 8, 2005 full text
  5. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  6. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  7. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  8. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  9. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  10. ↑ 10.0 10.1 Lua error in package.lua at line 80: module 'strict' not found.
  11. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  12. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  13. ↑ 13.0 13.1 13.2 13.3 13.4 Lua error in package.lua at line 80: module 'strict' not found.
  14. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  15. ↑ 15.0 15.1 Lua error in package.lua at line 80: module 'strict' not found.
  16. ↑ 16.0 16.1 Lua error in package.lua at line 80: module 'strict' not found.
  17. ↑ 17.0 17.1 17.2 https://support.startpage.com/index.php?/Knowledgebase/Article/View/1001/0/is-startpage-self-hosted-or-hosted-within-a-data-center
  18. ↑ 18.0 18.1 18.2 https://support.ixquick.com/index.php?/Knowledgebase/Article/View/1188/0/is-ixquick-self-hosted-or-hosted-within-a-data-center
  19. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  20. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  21. ↑ 21.0 21.1 21.2 21.3 21.4 21.5 21.6 21.7 21.8 Lua error in package.lua at line 80: module 'strict' not found.
  22. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  23. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  24. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  25. ↑ Lua error in package.lua at line 80: module 'strict' not found.
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