Here is the list of methods to build quality backlinks.

Change your Google Play country as per the instructions mentioned in below link, https://support.google.com/googleplay/answer/7431675?hl=en

To get a quality backlinks, you should create high-quality content that is valuable and informative for your target audience. This could be in the form of blog posts, inf...

"But picking these SAME keyphrases over and over for each page, does that make sense?" No, is the simple answer. For your articles you use long term keywords....

Hi, everything is simple, this is a technology whose action is designed to faciliate the weight of the entire page structure. We just remove the excess, background pictur...

Check weather the url's are in sitemap or not! If not then add them in the sitemap and submit for the indexing. Or If present in the sitemap, then resubmit for indexing

Do - Competitor Analysis to get relevant high quality backlinks.

Your website load time is more, you have to optimize your web page Speed. Your site is not optimize --- index . php is coming in the urls - optimize

nearly make 2100 words to 3000 words...

Create backlinks on the targeted keywords.