The website administrator is Alterdata.io sp. z o.o. headquartered in Warsaw at the address Domaniewska 47/10, entered into the Register of Entrepreneurs under the KRS number: 0000672717, for which the registration files are kept by the District Court in Warsaw, 13th Commercial Division, with taxpayer indentification numbers: 521-377-59-57, REGON: 36700511900000.