The Yandex regional domain to use. If SmartCaptcha blocks the chosen domain (common on datacenter IPs), the scraper falls back to a captcha-free domain and labels the record via search_metadata.locale_switched (the fallback domains render their own country's UI language, e.g. Turkish for yandex.com.tr, even though the organic results stay in your requested language).
Options:yandex.comyandex.ruyandex.byyandex.kzyandex.uzyandex.com.tryandex.uayandex.fryandex.deyandex.com.geyandex.amyandex.azyandex.mdyandex.tjyandex.ltyandex.lvyandex.ee