Even if your site hasn't lost any traffic over the years, if you find a bunch of technical errors, they could be keeping you from receiving all the search engine traffic you deserve. It's very possible that spending a day fixing these problems could pay off handsomely in the long run. The following are the two most important things you need to ensure: that (1) your page loads quickly (under 2 seconds) and (2) your page is as small as possible with the least number of requests. Remember the good old days of SEO, when all that you really needed to have “valid SEO content” was a certain number of words crossed with a certain percentage targeted keywords and punctuated by a few words linking to targeted pages? If you're willing to vouch for links added by third parties (e.g. if a commenter is trusted on your site), then there's no need to use nofollow on links; however, linking to sites that Google considers spammy can affect the reputation of your own site.

Has Google indexed you already?

Internal SEO isn’t just about keywords anymore; it’s about creating an authentic and engaging user experience. There are as many ways to build links as there are types of website. Thanks to Google’s crack-down on creating spam links, many old tactics no longer work. Now much of link-building is good old-fashioned marketing – promotion and PR. Increasing visibility via organic search today means incorporating content marketing, UX, CRO, and high-level business strategy. Anchor text gives search engines an indication about the content on the page that the link is leading to. Do not overstuff your anchor text with keywords and nor use very generic keywords. Choose your keywords wisely.

Authorship may be the future of search

Doorway pages are typically large sets of poor-quality pages where each page is optimized for a specific keyword or phrase. In many cases, doorway pages are written to rank for a particular phrase and then funnel users to a single destination. The better people with relevant blogs know you (through social sites, forums, email, etc.) the more likely they’ll be to link to your site and to share your content. Influencer marketing is a great way to build a diversified traffic portfolio, because influencers have an effect on multiple traffic channels. Analytics tools such as Google Analytics, Google Search Console, Ryte and HubSpot enable you to examine many important details about your website and its usage. For example, the HubSpot tool can identify which organic keywords are already driving traffic to your website. The same is true of Google Search Console, which is free. These keywords create a good base of core keywords and give you a list of keywords that you can use to measure the performance of your future SEO efforts. If you want to rank in Google you have to make sure that you’re using the right keywords for every page. One of the biggest mistakes I frequently encounter is that site owners are optimizing for too generic keywords.

Ensure every piece of content you write concludes with a call to action

Getting your business included in local resource lists is an indicator to Google about your authority. All you have to do is locate authoritative websites within your industry/community that also host a couple of local resources. If you have already worked to establish your business as an effective local authority, all you need to do is reach out. Users will occasionally come to a page that doesn't exist on your site, either by following a broken link or typing in the wrong URL. Having a custom 404 page that kindly guides users back to a working page on your site can greatly improve a user's experience. Your 404 page should probably have a link back to your root page and could also provide links to popular or related content on your site. A website’s quality, design, content, and usability are huge factors. The performance of a website from a technical and user-experience aspect is becoming a stronger component to achieving top results. According to Gaz Hall, a UK SEO Consultant : "Designing your website with mobile users in mind will give you the best chance at converting the traffic that search engines bring in."

High quality links matter and make a huge difference

Make sure that the pages on your site are well-linked to each other, particularly the ones you want to appear as sitelinks – Google takes the number of internal/external links into account when judging the importance of pages for sitelinks. Always remember, “Content is King”. Thereby, the content should be fresh, unique and relevant to what your website is about, and there should be no duplicate content. In the vast sea of websites--from e-commerce, media and informational websites to blogs and wikis--most site owners use a basic approach to search engine optimization. They submit their site to more than 200 search engines and blast these with some domains and keywords that may be related to the site. There was a time when “keyword density” meant something for SEO content.