Yes, link building is still valuable in 2020. There are various techniques through which you can build high-quality links like Video Submission, Bookmarking Submission, Question-Answer Platforms, etc.

To make your website loading speed faster what you can do is you can find the best web hosting service provider company. You can make your website mobile-friendly by using HTML, CSS, Javascript, etc.

Search Engine Optimization helps to improve your website's online visibility. And also helps to get it ranked quickly in SERP. There are various On-Page SEO and Off-Page SEO techniques that help you to make your website rank easily.

On-Page SEO techniques are- 1- Keyword Research 2- Internal Link 3- Meta Title 4- Meta Description 5- Alt Text 6- Images

Off-Page SEO:

1- Blog Commenting 2- Forum submission 3- Article posting 4- Guest posting 5- Directory submission

Profile creation is an Off-Page SEO technique that helps to drive traffic to your website. There are many online profile submission sites that helps you to get quality backlinks for your website. You can find various high DA business profile creation sites and make your profile theirs by submitting all the details.