IdHtg.Request.Accept:=  '....';
    IdHt.Request.AcceptEncoding:='gzip, deflate';
    IdHtg.Request.AcceptLanguage:='ru-RU,ru;q=0.9,en-US;q=0.8,en;q=0.7';
    IdHtg.Request.CacheControl:='max-age=0';
    IdHtg.Request.CustomHeaders.Values['Connection']     :='keep-alive';
    IdHtg.Request.Host:='www.url.com';
    IdHtg.Request.CustomHeaders.Values['Sec-Fetch-Mode'] := 'navigate';
    IdHtg.Request.CustomHeaders.Values['Sec-Fetch-Site'] := 'none';
    IdHtg.Request.CustomHeaders.Values['Sec-Fetch-User'] := '?1';
    IdHtg.Request.CustomHeaders.Values['Upgrade-Insecure-Requests'] := '1';
    IdHtg.Request.UserAgent :=    '...';
    Dat:=IdHtg.Get(Url);