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Scamadviser es una plataforma global que ayuda a más de 2,5 millones de consumidores mensualmente a comprobar si un sitio web es legal o una posible estafa. El sitio web ayuda a los consumidores a tomar decisiones acertadas de compra en línea, clasificando los sitios web con una puntuación de confianza basada en algoritmos.
El algoritmo de Scamadviser utiliza 40 fuentes de datos independientes. Desde la dirección IP del servidor web, la disponibilidad de los datos de contacto en el sitio web, la antigüedad de la URL, las valoraciones de los sitios de revisión y mucho, mucho más. El sitio web advierte a los consumidores no sólo acerca de las estafas de compras en línea (tiendas en línea que nunca entregan), sino también de los sitios de phishing, los famosos spammers y las tiendas en línea que venden productos falsificados.
El sitio web fue fundado en 2012 por Marc. Él había comprado palos de golf en una tienda online y rápidamente descubrió que eran falsos. Intentó recuperar su dinero sin éxito. Por frustración, creó Scamadviser para ayudar a otros consumidores a determinar si un sitio es legítimo o fraudulento. En 2018, la Ecommerce Foundation adquirió Scamadviser para tener acceso a la lista negra global de sitios web fraudulentos, ayudando a los consumidores pero también a las empresas (plataformas publicitarias, redes sociales, empresas de alojamiento) a identificar sitios web dudosos.
Después de siete años, la base de datos de Scamadviser consta de más de 65 millones de sitios web. Basado en un reciente análisis de los 307 797 sitios web en España, 6% tienen una puntuación de confianza por debajo de 70, lo que significa que es prudente que los consumidores comprueben la fiabilidad antes de comprar.
El mismo análisis se realizó para varios otros países (cuadro 1). En comparación con otros países, a España le está yendo bastante bien. El punto de referencia parece ser que el 2% de los sitios web tienen una puntuación de confianza inferior al 30% y del 7% al 8% inferior al 70%. Aparte de varios países muy pequeños (Eritrea, Tuvalu, Benin, Suazilandia), China tiene los sitios web menos confiable (12%), seguida de los Estados Unidos (9%). Entre los países más grandes, Grecia, Hungría, Argentina y Dinamarca son los que tienen el menor número de estafas online. La tabla completa y el informe están disponibles en línea.
Jorij Abraham, Director General de la Ecommerce Foundation, explica: "La Puntuación de Confianza de Scamadviser es una prueba de la confiabilidad de la página web. Mientras ampliamos y mejoramos continuamente nuestro algoritmo, siempre hay espacio para mejorar. Es un buen indicador, pero siempre recomendamos a los consumidores que hagan una comprobación manual utilizando nuestra lista de comprobación también en caso de duda."
Scamadviser ha sido parte de la Fundación Ecommerce desde 2018. La Ecommerce Foundation es una organización independiente que trabaja con ONG's, asociaciones de comercio electrónico en todo el mundo y otras instituciones de comercio electrónico con la misión de fomentar el comercio digital global.
A parte de Scamadviser, la Fundación Ecommerce publica más de 20 informes anuales gratuitos sobre cómo vender en línea en más de 50 países. Es el anfitrión de EcommerceWiki.org, una comunidad en línea para 40.000 profesionales de Ecommerce y el promotor de Safe.Shop, la marca de confianza de Global Ecommerce.
| Country (alphabetically) | Average Trust Score | Number of Sites with Trust Score < 30% | Share of Sites with Trust Score < 30% | Number of Sites with Trust Score < 70% | Share of Sites with Trust Score < 70% | Number of Sites included in Analysis |
| Afghanistan | 83 | 547 | 4% | 2600 | 17% | 15163 |
| Albania | 82 | 416 | 5% | 1248 | 15% | 8581 |
| Algeria | 79 | 378 | 5% | 1664 | 23% | 7277 |
| American Samoa | 61 | 194 | 22% | 400 | 46% | 875 |
| Andorra | 88 | 30 | 2% | 152 | 9% | 1644 |
| Angola | 83 | 57 | 5% | 186 | 15% | 1223 |
| Anguilla | 75 | 116 | 14% | 243 | 29% | 848 |
| Antarctica | 75 | 4 | 2% | 64 | 38% | 167 |
| Antigua and Barbuda | 84 | 50 | 3% | 196 | 13% | 1534 |
| Argentina | 93 | 657 | 0,6% | 3972 | 3% | 115526 |
| Armenia | 83 | 239 | 4% | 988 | 17% | 5814 |
| Aruba | 89 | 22 | 3% | 84 | 10% | 857 |
| Ascension Island | 70 | 11 | 10% | 54 | 49% | 110 |
| Asia Pacific | 98 | 0 | 0% | 0 | 0% | 12 |
| Australia | 85 | 16095 | 3% | 87578 | 15% | 594245 |
| Austria | 90 | 926 | 1% | 6215 | 5% | 128860 |
| Azerbaijan | 87 | 146 | 2% | 1256 | 13% | 9671 |
| Bahamas | 82 | 2550 | 3% | 15434 | 19% | 81057 |
| Bahrain | 89 | 114 | 2% | 412 | 9% | 4841 |
| Bangladesh | 81 | 3098 | 6% | 9776 | 19% | 52228 |
| Barbados | 84 | 257 | 5% | 768 | 16% | 4913 |
| Belarus | 78 | 422 | 6% | 1848 | 27% | 6926 |
| Belgium | 92 | 580 | 1% | 3006 | 6% | 47596 |
| Belize | 84 | 421 | 4% | 1663 | 16% | 10480 |
| Benin | 71 | 181 | 13% | 456 | 32% | 1434 |
| Bermuda | 92 | 50 | 0% | 903 | 6% | 14745 |
| Bhutan | 83 | 26 | 3% | 119 | 15% | 787 |
| Bolivia | 89 | 106 | 2% | 464 | 9% | 4900 |
| Bosnia and Herzegowina | 90 | 279 | 3% | 969 | 9% | 11043 |
| Botswana | 87 | 87 | 6% | 183 | 12% | 1515 |
| Bouvet Island | 77 | 10 | 10% | 20 | 20% | 101 |
| Brazil | 87 | 2832 | 1% | 15703 | 8% | 199049 |
| British Indian Ocean Territory | 79 | 38 | 5% | 160 | 23% | 694 |
| Brunei Darussalam | 87 | 36 | 3% | 145 | 13% | 1102 |
| Bulgaria | 82 | 1461 | 2% | 10633 | 18% | 59999 |
| Burkina Faso | 78 | 53 | 8% | 157 | 23% | 671 |
| Burundi | 79 | 19 | 7% | 58 | 22% | 261 |
| Cambodia | 82 | 551 | 5% | 1883 | 18% | 10428 |
| Cameroon | 75 | 355 | 10% | 945 | 26% | 3665 |
| Canada | 88 | 11710 | 1% | 85993 | 11% | 799768 |
| Cape Verde | 86 | 19 | 4% | 55 | 11% | 507 |
| Cayman Islands | 89 | 597 | 1% | 4920 | 9% | 55375 |
| Central African Republic | 87 | 207 | 1% | 1257 | 5% | 22943 |
| Chad | 79 | 9 | 5% | 41 | 24% | 171 |
| Chile | 95 | 285 | 1% | 1405 | 4% | 34213 |
| China | 75 | 153352 | 12% | 689613 | 53% | 1294266 |
| Christmas Island | 59 | 38 | 29% | 59 | 45% | 132 |
| Cocos (Keeling) Islands | 75 | 15 | 8% | 51 | 28% | 179 |
| Colombia | 90 | 865 | 2% | 4404 | 9% | 51332 |
| Comoros | 80 | 8 | 5% | 24 | 15% | 159 |
| Congo | 84 | 8 | 3% | 31 | 13% | 232 |
| Cook Islands | 92 | 1 | 0% | 17 | 8% | 204 |
| Costa Rica | 90 | 344 | 2% | 1083 | 8% | 14375 |
| Cote DIvoire | 82 | 76 | 4% | 352 | 17% | 2065 |
| Croatia | 93 | 316 | 1% | 2518 | 6% | 40944 |
| Cuba | 85 | 9 | 4% | 37 | 16% | 228 |
| Curaçao | 84 | 120 | 4% | 444 | 15% | 2889 |
| Cyprus | 86 | 1627 | 3% | 8314 | 14% | 58399 |
| Czech Republic | 92 | 2344 | 1% | 14814 | 7% | 215768 |
| Denmark | 94 | 1140 | 0,7% | 6400 | 4% | 162658 |
| Djibouti | 88 | 9 | 2% | 35 | 7% | 514 |
| Dominica | 93 | 58 | 0% | 1157 | 8% | 14141 |
| Dominican Republic | 85 | 405 | 4% | 1425 | 13% | 10658 |
| East Timor | 76 | 5 | 8% | 17 | 28% | 61 |
| Ecuador | 89 | 226 | 2% | 966 | 9% | 10461 |
| Egypt | 81 | 1817 | 4% | 9220 | 19% | 48603 |
| El Salvador | 90 | 49 | 2% | 229 | 7% | 3138 |
| England | 94 | 0 | 0% | 0 | 0% | 22 |
| Equatorial Guinea | 87 | 79 | 1% | 535 | 5% | 10800 |
| Eritrea | 68 | 16 | 18% | 32 | 36% | 88 |
| Estonia | 85 | 322 | 3% | 1809 | 16% | 11054 |
| Ethiopia | 87 | 26 | 1% | 163 | 9% | 1741 |
| European Union | 90 | 0 | 0% | 0 | 0% | 10 |
| Falkland Islands (Malvinas) | 81 | 3 | 5% | 12 | 20% | 59 |
| Faroe Islands | 92 | 8 | 1% | 31 | 4% | 714 |
| Fiji | 90 | 12 | 2% | 65 | 9% | 685 |
| Finland | 92 | 417 | 1% | 1742 | 6% | 29421 |
| France | 91 | 11240 | 2% | 38626 | 8% | 462517 |
| France, MEtropolitan | 88 | 3 | 6% | 4 | 8% | 52 |
| French Guiana | 84 | 7 | 7% | 13 | 12% | 105 |
| French Polynesia | 93 | 2 | 0% | 36 | 5% | 689 |
| French Southern Territories | 79 | 5 | 11% | 8 | 18% | 44 |
| Gabon | 87 | 256 | 1% | 1136 | 5% | 22098 |
| Gambia | 82 | 19 | 5% | 57 | 15% | 388 |
| Georgia | 89 | 306 | 2% | 1287 | 10% | 13083 |
| Germany | 89 | 15171 | 2% | 61557 | 8% | 818395 |
| Ghana | 77 | 609 | 5% | 3082 | 25% | 12174 |
| Gibraltar | 85 | 338 | 4% | 1243 | 13% | 9231 |
| Great Britain | 89 | 447 | 5% | 761 | 9% | 8834 |
| Greece | 94 | 511 | 0% | 3363 | 3% | 106262 |
| Greenland | 85 | 13 | 5% | 45 | 16% | 280 |
| Grenada | 90 | 7 | 2% | 26 | 8% | 324 |
| Guadeloupe | 89 | 10 | 1% | 92 | 9% | 1027 |
| Guam | 86 | 21 | 5% | 70 | 15% | 464 |
| Guatemala | 91 | 102 | 2% | 416 | 7% | 6189 |
| Guernsey | 86 | 50 | 5% | 138 | 14% | 963 |
| Guinea | 81 | 6 | 3% | 37 | 16% | 229 |
| Guinea-bissau | 75 | 6 | 10% | 17 | 28% | 61 |
| Guyana | 87 | 19 | 5% | 45 | 11% | 402 |
| Haiti | 82 | 51 | 9% | 102 | 17% | 588 |
| Heard and Mc Donald Islands | 78 | 3 | 9% | 10 | 29% | 35 |
| Honduras | 86 | 95 | 5% | 244 | 12% | 2044 |
| Hong Kong | 79 | 4303 | 4% | 24080 | 20% | 117961 |
| Hungary | 95 | 653 | 0,53% | 4170 | 3% | 123235 |
| Iceland | 85 | 130 | 4% | 481 | 14% | 3481 |
| India | 84 | 34400 | 4% | 136521 | 15% | 934493 |
| Indonesia | 73 | 16940 | 7% | 77604 | 32% | 240557 |
| Iran | 79 | 3948 | 4% | 25533 | 23% | 111607 |
| Iraq | 84 | 136 | 3% | 712 | 14% | 4940 |
| Ireland | 91 | 632 | 1% | 3773 | 6% | 59118 |
| Isle Of Man | 85 | 75 | 4% | 216 | 12% | 1832 |
| Israel | 78 | 2511 | 3% | 24912 | 27% | 93983 |
| Italy | 91 | 3570 | 1% | 22469 | 7% | 325019 |
| Jamaica | 89 | 94 | 3% | 312 | 9% | 3553 |
| Japan | 89 | 4176 | 1% | 38116 | 9% | 416576 |
| Jersey | 90 | 36 | 2% | 104 | 7% | 1511 |
| Jordan | 88 | 246 | 2% | 1095 | 9% | 11804 |
| Kazakhstan | 75 | 420 | 3% | 6030 | 37% | 16120 |
| Kenya | 84 | 741 | 3% | 3430 | 14% | 23992 |
| Kiribati | 77 | 3 | 6% | 14 | 28% | 50 |
| Korea (North) | 76 | 3 | 4% | 25 | 37% | 68 |
| Korea (South) | 75 | 5295 | 4% | 50548 | 34% | 147674 |
| Kosovo | 81 | 18 | 4% | 87 | 20% | 445 |
| Kuwait | 90 | 156 | 2% | 693 | 8% | 8396 |
| Kyrgyzstan | 78 | 22 | 3% | 196 | 29% | 676 |
| Lao Peoples Democratic Republic | 83 | 32 | 4% | 128 | 17% | 772 |
| Latvia | 84 | 338 | 4% | 1292 | 14% | 9184 |
| Lebanon | 92 | 212 | 1% | 979 | 6% | 16664 |
| Lesotho | 84 | 4 | 3% | 21 | 16% | 128 |
| Liberia | 85 | 8 | 3% | 38 | 14% | 265 |
| Libyia | 85 | 52 | 3% | 222 | 13% | 1677 |
| Liechtenstein | 90 | 45 | 2% | 129 | 6% | 2002 |
| Lithuania | 82 | 595 | 3% | 3450 | 20% | 17253 |
| Luxembourg | 92 | 403 | 2% | 1358 | 6% | 22556 |
| Macau | 82 | 66 | 5% | 253 | 18% | 1379 |
| Madagascar | 88 | 14 | 2% | 87 | 10% | 830 |
| Malawi | 87 | 12 | 2% | 55 | 8% | 678 |
| Malaysia | 78 | 4146 | 4% | 22575 | 22% | 102015 |
| Maldives | 91 | 22 | 1% | 118 | 7% | 1599 |
| Mali | 85 | 221 | 2% | 1003 | 7% | 14616 |
| Malta | 88 | 405 | 3% | 1124 | 8% | 14012 |
| Marshall Islands | 78 | 97 | 4% | 563 | 25% | 2249 |
| Martinique | 89 | 10 | 3% | 33 | 10% | 321 |
| Mauritania | 86 | 20 | 5% | 43 | 11% | 396 |
| Mauritius | 89 | 70 | 2% | 278 | 9% | 3115 |
| Mayotte | 46 | 31 | 45% | 42 | 61% | 69 |
| Mexico | 91 | 1403 | 1% | 7862 | 6% | 136648 |
| Micronesia | 81 | 5 | 8% | 9 | 15% | 62 |
| Moldova | 78 | 280 | 6% | 1134 | 26% | 4366 |
| Monaco | 91 | 24 | 2% | 113 | 7% | 1554 |
| Mongolia | 89 | 50 | 2% | 286 | 9% | 3214 |
| Montenegro | 91 | 31 | 2% | 132 | 9% | 1435 |
| Montserrat | 81 | 6 | 8% | 14 | 19% | 74 |
| Morocco | 85 | 1119 | 3% | 4887 | 14% | 33946 |
| Mozambique | 89 | 21 | 2% | 105 | 9% | 1153 |
| Myanmar | 88 | 51 | 2% | 277 | 9% | 2945 |
| Namibia | 91 | 110 | 2% | 384 | 8% | 4808 |
| Nauru | 97 | 8 | 0% | 20 | 1% | 1679 |
| Nepal | 85 | 500 | 3% | 2018 | 12% | 16387 |
| Netherlands | 89 | 3040 | 1% | 24024 | 8% | 283221 |
| Netherlands Antilles | 88 | 88 | 4% | 208 | 10% | 2144 |
| New Caledonia | 84 | 22 | 8% | 48 | 17% | 279 |
| New Zealand | 92 | 1076 | 1% | 6198 | 5% | 115494 |
| Nicaragua | 90 | 19 | 1% | 127 | 8% | 1689 |
| Niger | 89 | 6 | 2% | 28 | 8% | 346 |
| Nigeria | 74 | 4773 | 7% | 21566 | 31% | 70620 |
| Niue | 76 | 2 | 6% | 8 | 24% | 33 |
| Norfolk Island | 80 | 7 | 9% | 12 | 16% | 76 |
| North Macedonia | 84 | 401 | 4% | 1369 | 13% | 10868 |
| Northern Mariana Islands | 91 | 2 | 1% | 14 | 7% | 188 |
| Norway | 94 | 604 | 1% | 3751 | 4% | 85689 |
| Oman | 88 | 79 | 2% | 374 | 10% | 3782 |
| Pakistan | 79 | 4278 | 5% | 20163 | 22% | 89835 |
| Palau | 85 | 0 | 0% | 18 | 17% | 103 |
| Palestine | 79 | 44 | 7% | 118 | 20% | 591 |
| Panama | 77 | 28697 | 4% | 204587 | 26% | 783013 |
| Papua New Guinea | 91 | 9 | 1% | 50 | 7% | 728 |
| Paraguay | 90 | 36 | 1% | 166 | 5% | 3654 |
| Peru | 89 | 445 | 2% | 2307 | 9% | 25666 |
| Philippines | 85 | 2013 | 3% | 8149 | 13% | 63473 |
| Pitcairn | 84 | 4 | 5% | 12 | 16% | 76 |
| Poland | 89 | 1266 | 2% | 5797 | 9% | 63938 |
| Portugal | 89 | 890 | 2% | 4905 | 10% | 51235 |
| Puerto Rico | 92 | 55 | 1% | 269 | 7% | 4069 |
| Qatar | 88 | 136 | 3% | 530 | 10% | 5082 |
| Reunion | 91 | 10 | 1% | 70 | 8% | 882 |
| Romania | 77 | 2434 | 6% | 9749 | 25% | 39289 |
| Russian Federation | 77 | 20713 | 4% | 156160 | 29% | 542815 |
| Rwanda | 84 | 35 | 2% | 178 | 12% | 1451 |
| Saint Kitts and Nevis | 85 | 319 | 4% | 906 | 11% | 7883 |
| Saint Lucia | 88 | 14 | 2% | 71 | 11% | 656 |
| Saint Vincent and the Grenadines | 89 | 64 | 2% | 263 | 8% | 3308 |
| Samoa | 85 | 10 | 4% | 30 | 12% | 244 |
| San Marino | 91 | 14 | 2% | 47 | 6% | 789 |
| Sao Tome and Principe | 84 | 7 | 5% | 14 | 11% | 133 |
| Saudi Arabia | 89 | 770 | 2% | 3571 | 9% | 39767 |
| Scotland | 92 | 1 | 5% | 1 | 5% | 22 |
| Senegal | 87 | 30 | 2% | 193 | 12% | 1662 |
| Serbia | 87 | 539 | 3% | 2191 | 11% | 19865 |
| Seychelles | 78 | 779 | 6% | 2972 | 24% | 12446 |
| Sierra Leone | 90 | 4 | 1% | 20 | 6% | 355 |
| Singapore | 88 | 1398 | 2% | 8521 | 10% | 87240 |
| Slovakia | 89 | 281 | 2% | 1309 | 9% | 14197 |
| Slovenia | 90 | 219 | 1% | 1316 | 5% | 25013 |
| Solomon Islands | 61 | 22 | 26% | 41 | 48% | 85 |
| Somalia | 76 | 80 | 9% | 213 | 24% | 873 |
| South Africa | 92 | 1973 | 1% | 10582 | 6% | 165096 |
| South Georgia | 83 | 2 | 9% | 3 | 14% | 22 |
| Spain | 92 | 3138 | 1% | 19661 | 6% | 307797 |
| Sri Lanka | 87 | 503 | 2% | 2160 | 10% | 21877 |
| St. Helena | 82 | 3 | 4% | 13 | 19% | 70 |
| St. Pierre and Miquelon | 70 | 5 | 15% | 13 | 39% | 33 |
| Sudan | 85 | 22 | 2% | 133 | 11% | 1239 |
| Suriname | 90 | 31 | 3% | 94 | 8% | 1199 |
| Svalbard Islands | 72 | 2 | 17% | 4 | 33% | 1 |
