Crawlers received an empty client-rendered shell (107 characters of text);
most AI crawlers do not run JavaScript, so the product was invisible to them.
- Build renders each locale to static HTML (/ for Korean, /en/ … /vi/) with
src/entry-server.tsx + scripts/prerender.mjs; the browser hydrates the same
locale. The language menu links to those pages instead of switching in place.
- Per-locale head: title, description, canonical, hreflang (+ x-default /en/),
Open Graph and X cards with a per-locale 1200x630 image.
- JSON-LD graph: Organization, WebSite, WebPage, SoftwareApplication (KRW
offers, version, release date, download URL from the canonical sources),
HowTo and FAQPage. No invented ratings.
- robots.txt (search, ai-input and ai-train allowed; /app, /api, invites
excluded), sitemap.xml with language alternates, llms.txt and llms-full.txt
generated from the same translations and canonical values.
- IndexNow key and a post-deploy ping (Bing, Naver, Yandex).
- A factual "at a glance" section and two FAQ answers (recognised languages,
where data is stored) in all 10 languages.
- Icons, apple-touch-icon and web manifest; asset base is now absolute so
sub-path pages load the same bundle.
Verified: 3.6k-7.7k characters of text per page, no hydration warnings,
no overflow at 320/1440 in six locales, axe 0, Lighthouse mobile SEO,
accessibility and best practices 100.
