The e-Visa of the Republic of Türkiye is an electronic visa issued online by the Turkish Ministry of Foreign Affairs, with no consulate visit and nothing stuck into your passport. Verbatim from the Ministry: «The Electronic Visa (e-Visa) Application System was launched on 17 April 2013 by the Ministry of Foreign Affairs of the Republic of Türkiye. This system allows visitors travelling to Türkiye to easily obtain their e-Visas online (www.evisa.gov.tr), in approximately three minutes». What it is NOT: it is no good for working or studying («Please note that e-visa is only valid when the purpose of travel is tourism or commerce. For other purposes, such as work and study, visas are given by Turkish Embassies or Consulates»), and it is not available to every nationality. The ONLY official site is https://www.evisa.gov.tr. Anyone else offering to «handle» your Turkish e-Visa is a reseller.
Of the 28 nationalities we follow, 23 need NOTHING: they enter visa-free, almost all for 90 days (Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, El Salvador, Spain, United States, Guatemala, Honduras, Italy, Nicaragua, Panama, Paraguay, Peru, Uruguay, Venezuela, Germany, Andorra, Australia and Denmark), except COSTA RICA, which also enters visa-free but only for 30 days: «Costa Rika: Ordinary and official passport holders are exempted from visa for their travels up to 30 days». Those that DO need a procedure are five, split into two groups. CAN USE THE e-VISA at evisa.gov.tr: MEXICO («Ordinary and service/official passport holders are required to have visa to enter Türkiye. Holders of such passports may get their 90-day multiple-entry visas from Turkish missions abroad or obtain their 30-day single-entry e-visas via the website www.evisa.gov.tr»), DOMINICAN REPUBLIC («Ordinary passport holders can obtain three month-multiple entry e-Visas via the website www.evisa.gov.tr») and SURINAME («Ordinary passport holder Surinamese citizens may obtain 30-day single-entry e-visas via the website www.evisa.gov.tr»). CANNOT USE THE PORTAL and must go to a Turkish diplomatic or consular representation no matter what: CUBA («Ordinary passport holders are required to have visa to enter Türkiye», and the official entry offers no e-Visa) and GUYANA («Ordinary passport holders are required to have visa to enter Türkiye and they can get their 15 day period visas from Turkish diplomatic representations abroad»). One important detail: for Mexico, the Dominican Republic and Suriname the Ministry's entry does NOT require holding another visa beforehand. Many other nationalities are asked for a valid Schengen, United States, United Kingdom or Ireland visa or residence permit, plus a return ticket, a hotel booking and 50 dollars per day, and entry only through an airport. Do not copy guides written for those nationalities: that is not your case.