Creating backlinks is old strategy which is not worked now due to penguin penalties algorithms. Avoid to making inbound links from different sources like forums, blogs commenting and directory submission. It will harm your site instead of help in SEO. You may create some quality links from guest posting but in limits and try to get linked with only highly relevant popular sites.
Focus in On-Page SEO
In the past, we focus on off-page SEO and try to linking with more and more sites and do not give more value to on-page optimization. But now in 2019 we should focus on On-page SEO that means we consider the following :
Title Tags :
Research on your niche keywords and put them in your title tags. Do not repeat the same title of all pages.
Meta Description and Keywords :
Meta description is very important, It should be a summary of your page content and also have some important keywords.
Heading Tags :
No doubt, heading tags are not only for designing but also affect your optimization. Use h1 and h2 heading tags for your main title of page and it also should not same for every page of your blog.
The main Content :
Your main content should have text description in the form of paragraph. If your site is for Wallpapers of Download Images, you should write more then 200 words in every page to describe the image, it will help to get better position in search results.
Optimize Images :
Give proper name to images and also give three-four words alt text to all images for optimize your all images. Do same for links too.
Use interlinking :
Interlinking means add links of your own site on relevant keywords. It help to alive your old posts too with your new ones and pass page rank to inner pages.