In general, though, focus on relevance above all else. It’s tempting to just shoot for the big, authoritative opportunities, but by doing so you run into a few issues. Google now supports using the rel=“canonical” link element across different domains. This means that you can have similar content on both the .com and .co.uk extensions of your site, and use the canonical link element to indicate the exact URL of the domain preferred for indexing. This will make duplicate content a non-issue. Also, keep in mind that this is not required when using different languages. Google does not consider foreign-language translations to be duplicate content. But it is something to consider for multiple locale sites in the same language. An SEO campaign can deliver all the traffic in the world, but if none of the visitors ever becomes a customer then the campaign has not succeeded. If you’re goal for a guest post is to receive a backlink in return, then you would want to make sure their website has a number of good quality backlinks. The number of quality backlinks a website has will determine how powerful a link you will get.

Make your content scannable with keyword-rich headings and helpful visuals

It is widely understood in the industry that search engine optimization should be built in, as early as possible, to the entire site development strategy, from choosing a content management system (CMS) and planning site architecture to developing on-page content. Don't limit your ideas; brainstorm whatever subjects and phrases could lead the kinds of visitors you want to your site. Type them into a spreadsheet. Your brainstorming will "prime the keyword pump." While uncovering and fixing technical issues has always been an important part of SEO, in the wake of Panda and Penguin, technical SEO has moved closer to the forefront. Link building happens when you manage to get more links to your website from other sites than your competition. In other words if the spiders and crawlers see that there is a link to your website in 500 blogs it will increase your credibility compared to a website that only has 10 links linking to it.

Take all the data you get

Google has become tremendously more sophisticated about the signals that it does consider when it comes to applying relevance of keywords to a particular site. Internal linking is a really effective SEO technique – it helps search engines identify new pages on your website and indicates what your page is about. Long form content is most valuable when it can serve as an extensive resource for readers on a specific topic. This includes long lists of tips, step-by-step guides, and collections of facts and statistics. Google cares deeply about the indexed age of both your site and its content. A brand new site that's a newcomer to Google is going to have a far harder time ranking on its SERPs than a site that has indexed age.

How do search engines determine relevance and popularity amongst such a large number of results?

Some of the pages on your website might not be linked to any other page. These are referred to as “orphaned pages,” and if a bot finds such a page, it is forced to abort the crawl since bots can only move from link to link. Google crawls most popular pages several times per day, but they don’t want you manipulating them, so they update their index pretty slowly. By highlighting your website, you help Google better understand your site’s data. Data highlighter allows you to highlight parts of your website through Google Webmaster Tools, without having to make any code changes. Gaz Hall, an SEO Expert from the UK, said: "When your website or website’s content gets shared on social media platforms like Twitter, Facebook, Pinterest, Google+, and YouTube, it is considered a social signal or citation."

Main keywords and sub-keywords

Rest assured that real SEO has nothing to do with keyword stuffing, keyword density, hacks, tricks or cunning techniques. If you hear any of these terms from your SEO advisor, run away from them as quickly as you can. If your web developer tells you that the website is accessible from a mobile device, don’t just trust him/her. Go over your mobile website yourself and check if you, as a visitor, can do all you want and need to do there. Another important factor is the way that the sites link to you, sites that use the rel=nofollow tag to link to you or sites that use a redirect to link to you will not help you, also the search engines look at the text that links to you. SEO is a marketing discipline that can help you launch your new endeavor off the ground and curate an online visibility on the SERPs. It enables you to garner a massive audience, generate traffic, and create brand awareness. A powerful SEO campaign can propel you to the top of the SERPs so your website enjoys 70% of user clicks.