$ headless-seo-check http://127.0.0.1:4311 -a -q --no-color
--- stdout+stderr ---
headless-seo-check http://127.0.0.1:4311
  ! /                    static, 324 words
      warn  no canonical link in the served HTML
  ! /static              static, 325 words
      warn  no canonical link in the served HTML
  x /force-dynamic       rendered per request, 323 words
      error rendered on every request, never cached at the edge
            cache-control: private, no-cache, no-store, max-age=0, must-revalidate
      warn  no canonical link in the served HTML
  ! /isr                 static, 324 words
      warn  no canonical link in the served HTML
  ! /noindex-meta        static, 324 words
      warn  <meta robots> says noindex, yet this URL is offered for crawling
            <meta robots content="noindex, nofollow">
      warn  no canonical link in the served HTML
  x /noindex-header      static, 326 words
      error blocked from indexing by a response header that does not appear in the page source
            X-Robots-Tag: noindex, nofollow
      warn  no canonical link in the served HTML
  x /noindex-conflict    static, 325 words
      error blocked from indexing by a response header that does not appear in the page source
            X-Robots-Tag: noindex, nofollow
      error the header and the HTML disagree about indexing, and the header is the one that counts
            X-Robots-Tag: noindex, nofollow
            <meta name="robots" content="index, follow">
      warn  no canonical link in the served HTML
  x /hreflang-drift      static, 324 words
      error the Link: header and the HTML advertise different URLs for 1 language
            fr  header: http://127.0.0.1:4311/fr/hreflang-drift
            fr  HTML:   http://127.0.0.1:4311/fr/slug-traduit
            fr  the header target answers HTTP 200
  x /hreflang-drift-dead static, 327 words
      error the Link: header and the HTML advertise different URLs for 1 language
            fr  header: http://127.0.0.1:4311/fr/nexiste-pas
            fr  HTML:   http://127.0.0.1:4311/fr/slug-traduit
            fr  the header target does not exist (HTTP 404)
      error 1 hreflang target in the Link: header do not exist
            fr  http://127.0.0.1:4311/fr/nexiste-pas — does not exist (HTTP 404)
  x /shell               static, 0 words
      warn  no canonical link in the served HTML
      error the served HTML carries 0 words — Googlebot has to run JavaScript to see this page
            7 <script src> + 3 KB inline JS + an empty root container
      warn  no links to any other page on this host — the navigation is not in the served HTML
  ! /cjk                 static, 268 words
      warn  no canonical link in the served HTML
  x /cjk-thin            static, 39 words
      warn  no canonical link in the served HTML
      error the served HTML carries 39 words — Googlebot has to run JavaScript to see this page
            6 <script src> + 3 KB inline JS
      warn  no links to any other page on this host — the navigation is not in the served HTML
  ! /thin                static, 117 words
      warn  no canonical link in the served HTML
      warn  the served HTML carries 117 words for a page that ships an application bundle
            6 <script src> + 4 KB inline JS
  ! /fr/slug-traduit     static, 307 words
      warn  no canonical link in the served HTML
  ! /fr/hreflang-drift   static, 310 words
      warn  no canonical link in the served HTML
  ! /fr/hreflang-good    static, 308 words
      warn  no canonical link in the served HTML
  x /gone                HTTP 404
      error HTTP 404 — in your sitemap, but not on your site
  FAILED  10 blocking issues, 18 warnings
     2 × empty-server-html
     2 × hreflang-drift
     2 × noindex-header
     1 × dynamic-render
     1 × hreflang-dead-target
     1 × indexability-conflict
     1 × sitemap-url-error
--- exit code: 1 ---