All these programs are often heavily discounted online. For example, you can probably get McAfee Total Protection for $50 a year.

On its own site, McAfee sells only Total Protection and LiveSafe, but you'll find the other three products at third-party retailers both online and offline.

An authority website is a site that is trusted by its users, the industry it operates in, other websites and search engines. Traditionally a link from an authority website is very valuable, as it's seen as a vote of confidence.

The more of these you have, and the higher quality content you produce, the more likely your own site will become an authority too.

Influencer SEO. As influencer marketing continues to carve a place in everyone's marketing toolbox, this new marketing method has found its way into SEO. Many influencers are very effective at creating original content and can be good collaborators.

Do they have their own site? If so, are they considered an authority in their niche? Taking these into account would ensure that an influencer can help you in your SEO efforts.

If Google finds two identical pieces of content, whether on your own site, or on another you're not even aware of, it will only index one of those pages. You should be aware of scraper sites, stealing your content automatically and republishing as your own.

Here's Graham Charlton's thorough investigation on what to if your content ends up working better for somebody else.

Outgoing links. Search engines like to see links to other sites as well as within your site (i.e.

linking to other content on your own site).