Your hosting ISP cannot really be your SEO adviser. Finding a hosting ISP that understands SEO and how their administrative functions impact search optimization, is a very rare combination. Read this great article dealing with issues of how ISP affects your website SEO.
Many time webmaster wonder which factor to weigh more in website optimization. Whether it should be On-page SEO factors or Off-page SEO factors. So to make an end to this controversy here is a very interesting article to explain all your queries.