How could one increase traffic to one's own website?

SEO is one of the factors to increase website traffics.

Also, website speed is also important.

Do you have a Magento store?

Check out the online Complete guide on Speed Up Magento at OSC Professionals. Lesser TTFB and reduced server load, enable m2 cache, delete unused stores.

This helps you to increase your web page traffics as well as speed.