Basically, there are five ways to boost Alexa Rank:
1. Install Alexa Toolbar.
2. Install Alexa Widget.
3. Write Unique Content.
4. Write Content regularly.
5. Share your content on social media.
Alexa measures the traffic on your website and provide a numerical value to rank your domain in search engines. Alexa rank can be improved by good content update and also by building backlinks from other relevant sources.