site/layouts/partials/head.html

<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
{{ hugo.Generator }}
{{ range .AlternativeOutputFormats -}}
<link rel="{{ .Rel }}" type="{{ .MediaType.Type }}" href="{{ .Permalink | safeURL }}">
{{ end -}}

{{ $outputFormat := partial "outputformat.html" . -}}
{{ if and hugo.IsProduction (ne $outputFormat "print") -}}
<meta name="robots" content="index, follow">
{{ else -}}
<meta name="robots" content="noindex, nofollow">
{{ end -}}

{{ partial "seo_schema" . }}

{{ partialCached "favicons.html" . }}
<title>
  {{- if .IsHome -}}
    {{ .Site.Title -}}
  {{ else -}}
    {{ with .Title }}{{ . }} | {{ end -}}
    {{ .Site.Title -}}
  {{ end -}}
</title>
{{ $desc := .Page.Description | default (.Page.Content | safeHTML | truncate 150) -}}
<meta name="description" content="{{ $desc }}">
{{ template "_internal/opengraph.html" . -}}
{{ template "_internal/schema.html" . -}}
{{ template "_internal/twitter_cards.html" . -}}
{{ partialCached "head-css.html" . "asdf" -}}
<script
  src="https://code.jquery.com/jquery-3.5.1.min.js"
  integrity="sha256-9/aliU8dGd2tb6OSsuzixeV4y/faTqgFtohetphbbj0="
  crossorigin="anonymous"></script>
{{ if .Site.Params.offlineSearch -}}
<script
  src="https://unpkg.com/lunr@2.3.8/lunr.min.js"
  integrity="sha384-vRQ9bDyE0Wnu+lMfm57BlYLO0/XauFuKpVsZPs7KEDwYKktWi5+Kz3MP8++DFlRY"
  crossorigin="anonymous"></script>
{{ end -}}

{{ if .Site.Params.prism_syntax_highlighting -}}
<link rel="stylesheet" href="{{ "/css/prism.css" | relURL }}"/>
{{ end -}}

{{ partial "hooks/head-end.html" . -}}

{{/* To comply with GDPR, cookie consent scripts places in head-end must execute before Google Analytics is enabled */ -}}
{{ if hugo.IsProduction -}}
  {{ if hasPrefix .Site.GoogleAnalytics "G-" -}}
    {{ template "_internal/google_analytics.html" . -}}
  {{ else -}}
    {{ template "_internal/google_analytics_async.html" . -}}
  {{ end -}}
{{ end -}}