.io vs .se.net

.io is a generic top‑level domain that has become popular with technology companies, startups and SaaS providers; its lowest registration cost is about $28.12 per year, though the demand for short, memorable names can limit availability. .se.net is also a generic top‑level domain but lacks a strong industry association, offering a more neutral branding option; the cheapest registration is roughly $28.68 per year. The main trade‑off is that .io may convey a tech‑oriented image and face higher competition for names, while .se.net provides broader applicability at a slightly higher price and with fewer expectations about the site's focus.