If an internet entrepreneur has only sold 2 domain names, they may consider themselves experienced or great at selling.
but, to truly be considered great, one must follow this list: thinking long-term, having endurance to hold many names, constantly improving knowledge as an entrepreneur, getting rid of illiquid names every 2 years, studying the market, knowing the appropriate price for a domain name, confidently negotiating with both parties, improving branding and online influence, and perceiving each purchase as a long-term investment.

Professional investors typically have a small percentage of completed transactions from their available domains. The average domainer has a portfolio of 1-5 thousand domains, of which only 1 to 5% are sold each year depending on their sales strategy. November and December are good months to buy domains on the secondary market because professionals are relieved of part of their portfolio during this time. While the wholesale cost of domain renewal is not significant, optimisation of a portfolio is necessary as any domainer is forced to periodically refuse to renew domains that they deem will not work.

Domains on the secondary market can be categorised based on their popularity, including popular words, names of markets and services, short domains, last names, misspellings of popular sites and domains registered with the mention of trademarks for subsequent resale to brand owners. It should be noted that significant judicial practice has already been established surrounding these domains, with the court typically siding with the copyright holder in cases of confusingly similar domains.

To earn on domains, start-up capital is needed. However, registration costs for a domain tend to be low, averaging at around $10. Earnings from domains can be gained through domaining, cybersquatting, reselling or domain parking. Domaining involves domain registration with subsequent resale, while cybersquatting involves domain registration for a specific brand with subsequent resale. Reselling includes mediation between the seller and the customer, and domain parking involves redirecting visitors who came by domain to another website or page.