URL Opener is actually tool where you can access multiple url at one time.

Backlinks are the backbone of SEO campaign. Without them one cannot attain high rankings over SERP.

They have their own algorithm and the urls are passes from them and then ranked accordingly.

Crawling is something Google bot's property where they fetches page and read it.

SEO is basically search engine optimization. It involves ranking your business high for particular queries.

Please mention ur URL here. I will do free SEO audit of your site.

Local seo is about working on google maps and ranking there where as global seo is organic seo

SEO is something that which can raise your business visibility to another rising level and will generate high sale for your services.