https://www.wpar.net/why-you-should-get-dedicated-ip-for-your-website/%d8%aa%d8%b5%d9%85%d9%8a%d9%85-%d9%82%d8%a7%d9%84%d8%a8-%d9%88%d9%88%d8%b1%d8%af%d8%a8%d8%b1%d9%8a%d8%b3-%d9%85%d9%86-%d8%a7%d9%84%d8%b5%d9%81%d8%b1/