Web ResultA CAPTCHA (/ ˈ k æ p. tʃ ə / KAP-chə) is a type of challenge–response test used in computing to determine whether the user is human in order to deter bot attacks and spam. [1] The term was coined in 2003 by Luis von Ahn , Manuel Blum , Nicholas J. Hopper, and John Langford . [2]
GLOBAL RANK
Alexa Reach
Page length
Alexa Rank Country N/A
Daily Unique Visitors
Monthly Unique Visitors
United States
71,669
Indonesia
56,056
Taiwan
18,227
United Kingdom
16,183
Brazil
14,642
Nigeria
12,799
Egypt
10,755
Hong Kong
10,152
Canada
10,152
Australia
8,846
Philippines
6,333
India
6,165
Malaysia
6,065
Spain
5,026
Germany
4,892
Mexico
4,691
France
4,423
Italy
4,088
Turkey
3,753
Iraq
3,418
Thailand
3,351
Netherlands
3,217
Israel
3,183
Cambodia
2,647
Algeria
2,044
Ireland
1,843
Romania
1,776
Jordan
1,642
Poland
1,575
Ghana
1,508
Argentina
1,441
South Africa
1,307
Belgium
1,173
Czechia
1,072
Ukraine
1,005
Japan
1,005
Morocco
972
South Korea
938
Lebanon
905
Saudi Arabia
871
Austria
838
Hungary
804
Sweden
771
Singapore
737
Pakistan
704
Bangladesh
670
Denmark
637
Greece
603
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