Guest posting, especially to high domain authority sites can increase not just rankings, but conversions, as it assists in branding also. It does establish a presence for your business and although a form of outsource SEO, it is also a form of inbound marketing.
Many businesses do not know the impact that guest posting can have on overall rankings, and they certainly do not understand it. As a top SEO reseller agency, we know the importance of guest posting strategy and can explain it to any business that reaches out to us.