The unique visitors metric gives you a sense of your size audience.
This relative importance depends on the purpose of your website or publication. Therefore, you may want to maximize people number that come to your web site, with little regard for how many pages they access, as long as they follow your chosen path through the site, So if you are a brand. If you are a niche publisher, they may show loyalty and engagement by clicking deep into the site and generating page views, you may not have a huge audience. Eventually, it is determined by the computer IP address or device that the user is browsing from, combined with a cookie on the browser they are using.
Now look. So if he is on the same device and same browser, no matter of how many visits a visitor makes, only one unique visitor is counted. On top of that, if you visit this link once today, you could be counted as an unique visitor. You are still counted as one unique visitor, So if you come back to this site 20 more times today. If you visit the site from another computer or device it will count as a new visitor.
Page views are important for publishers because each page view tally's an ad impression for each ad on the page. This is an important number for you to grow, if your ads are sold on a cost per thousand views or CPM basis. It's tempting to make sacrifices to the user experience to artificially increase page views. Will cut down on page views, an image gallery that loads each new image seamlessly provides a better experience for the user. It's important to find a balance so you don't alienate your audience. I'd say if you click this link and the page loads, you have triggered a page view. Notice, it will count as 20 page views, I'd say in case you click the link 20 more times today.
In the evening, the most important factor for growing your page views and unique visitors is content.
They are going to bounce and never come back, if your content isn't engaging and relevant to your users. The bounce rate is visitors percentage who come to the website and leave within a few seconds. Time amount spent on the page indicates whether users are actually reading or watching what you're serving up. The higher the average time on a page, the more engaged your audience is in that particular page. Increasing this metric provides leverage to increase your ad rates because the ad impression time is longer, as a publisher.