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. 2021 Jan 27;21(3):771–789. doi: 10.1007/s10209-020-00788-7

Table 7.

The Results of WAVE Tool, W3C HTML and CSS Validators

WAVE Tool W3C Validators
Country Error Alerts Structural Elements Contrast Features HTML5 & Aria HTML Val CSS Val
USA 0 7 35 1 46 22 19 32
Spain 24 49 72 7 116 99 0 5
Italy 0 301 57 36 89 5 1 0
UK 0 8 83 0 20 43 7 15
France 28 33 307 2 23 188 210 25
Germany 14 36 236 5 145 176 16 7
Turkey 18 16 36 4 10 10 8 0
Russia BG BG BG BG BG BG 2 64
Brazil 7 29 56 1 8 0 16 65
China 41 100 61 65 7 0 Cannot be checked Precondition Failed
Canada en 3 6 95 1 26 927 0 22
Canada fr 3 6 95 1 22 925 0 22
Belgium 13 7 74 3 14 53 39 12
Netherlands 0 3 30 2 8 0 0 140
Peru 24 37 77 1 7 103 145 5
India 9 254 40 12 28 26 5 2
Switzerland 18 139 389 0 27 172 29 14
Portugal 136 262 71 36 58 14 41 24
Ecuador 4 35 42 0 10 25 23 24
Saudi Arabia 11 117 45 63 129 308 11 5
Sweden 5 14 43 4 101 31 22 4
Ireland 22 3 37 0 0 7 48 4
Mexico 3 10 58 0 20 2 9 25
Singapore 38 33 47 13 3 121 51 9
Pakistan 35 42 44 11 13 17 75 40
Total 456 1547 2130 268 930 3274 777 565

BG bad gateway