User-agent: *
Disallow: /preview/
Disallow: /404/
Disallow: /en/404/
Disallow: /index/
Disallow: /en/index/
Disallow: /not-found/
Disallow: /en/not-found/
Disallow: /seo/
Disallow: /en/seo/

Sitemap: https://engineering.mercari.com/sitemap-index.xml