Korea has two main search engines, Naver and Google. Naver does not use Google’s index and ignores hreflang tags. Pages that rank well on Google can be missing from Naver entirely until the site is registered there. This is the fact that changes the plan for Korea.
Naver finds a site through Naver Search Advisor, where the owner verifies the site and submits a sitemap. Proxylang generates the Korean sitemap, tells Naver about new pages through IndexNow, and the dashboard walks you through the registration. The registration itself is yours to do, because only the site owner can verify the site.
Korean puts spaces between words, but browsers will break a line between any two Hangul characters, which splits a word in half. One CSS rule, word-break: keep-all, keeps words whole. Check your headings and buttons after you switch the language on.
Korean business sites usually write in the formal 합니다 style, and some brands use the softer 해요 style. A machine will not always pick the one you want. Read your key pages, and where the tone is wrong, correct that string once in the dashboard. Your version is what visitors see from then on.
Some brands keep their name in Latin letters on Korean pages, and others write it in Hangul. Both are normal in Korea, and the right answer depends on your brand. Pin the form you want in the glossary, and every page uses it.
Add one line of code to your site, or point your domain at Proxylang, and add Korean as a target language. Every page is translated, including meta titles, meta descriptions, alt text and form labels, and each one is served at its own Korean URL. Setup takes about a minute and there is nothing to install in your content management system.
Selling into Japan or China too? Each has its own search engine rules — see Japanese and Chinese website translation.