hugo-theme-paradox/layouts/partials/seo.html

	{{ "<!-- title -->" | safeHTML }}
	<title itemprop="name">{{ .Title }} | {{ .Site.Title }}</title>
	<meta property="og:title" content="{{ .Title }}" />
	<meta name="twitter:title" content="{{ .Title }}" />
	<meta name="application-name" content="{{ .Site.Title }}" />
	<meta property="og:site_name" content="{{ .Site.Title }}" />

	{{- with or .Description .Summary .Site.Params.description }}
	{{ "<!-- description -->" | safeHTML }}
	<meta name="description" content="{{.}}">
	<meta itemprop="description" content="{{.}}" />
	<meta property="og:description" content="{{.}}" />
	<meta name="twitter:description" content="{{.}}" />
	{{ end -}}
	{{ "<!-- url -->" | safeHTML }}
	<base href="{{ .Permalink | absURL }}">
	<link rel="canonical" href="{{ .Permalink | absURL }}" itemprop="url" />
	<meta name="url" content="{{ .Permalink | absURL }}" />
	<meta name="twitter:url" content="{{ .Permalink | absURL }}" /> 
	<meta property="og:url" content="{{ .Permalink | absURL }}" />

	{{- $cover := ($.Resources.ByType "image").GetMatch "{*cover*,*thumbnail*,*featured*}" -}}
	{{ $icon := resources.GetMatch (default "" .Site.Params.icon) -}}
	{{- $staticIcon := "icon.png" | absURL -}}
	{{- with or .Params.cover $cover $icon }}
	{{ "<!-- image -->" | safeHTML }}
	<meta itemprop="image" content='{{ .Permalink | absURL }}' />
	<meta property="og:image" content='{{ .Permalink | absURL }}' />
	{{- with .Width }}
	<meta property="og:image:width" content='{{ . }}' />
	{{- end }}
	{{- with .Height }}
	<meta property="og:image:height" content='{{ . }}' />
	{{- end }}
	<meta name="twitter:image" content='{{ .Permalink | absURL }}' />
	<meta name="twitter:image:src" content='{{ .Permalink | absURL }}' />
	{{- else }}
	{{ "<!-- image -->" | safeHTML }}
	<meta itemprop="image" content='{{ $staticIcon }}' />
	<meta property="og:image" content='{{ $staticIcon }}' />
	<meta name="twitter:image" content='{{ $staticIcon }}' />
	<meta name="twitter:image:src" content='{{ $staticIcon }}' />
	{{- end -}}

	{{/*=== author ===*/}}
	{{ with or .Params.author .Site.Params.author -}}
	{{ "<!-- author -->" | safeHTML }}
	<meta property="article:publisher" content="{{ . }}" />
	<meta property="og:article:author" content="{{ . }}" />
	<meta property="article:author" content="{{ . }}" /> 
	<meta name="author" content="{{ . }}" />
	{{- end -}}

	{{/*=== published and updated ===*/}}
	{{ "<!-- time -->" | safeHTML }}
	{{- with .Date }}
	<meta property="og:article:published_time" content={{ .Format "2006-01-02T15:04:05Z0700" | safeHTML }} /> 
	<meta property="article:published_time" content={{ .Format "2006-01-02T15:04:05Z0700" | safeHTML }} />
	{{ end -}}
	{{ with .Lastmod -}}
	<meta property="og:updated_time" content={{ .Format "2006-01-02T15:04:05Z0700" | safeHTML }} />
	{{ end -}}

	{{/*=== section and keywords ===*/}}
	{{- with.Params.category -}}
	<meta name="news_keywords" content="{{ . }}" />
	<meta property="article:section" content="{{ . }}" />
	{{- end -}}
	{{- with .Params.tags }}
	<meta name="keywords" content='{{ delimit . " "}}'>
	{{- end -}}

	{{- if isset .Params "date" -}}
	{{ "<!-- article metadata -->" | safeHTML }}
	<meta property="og:type" content="article" />
	<script defer type="application/ld+json">
		{
			"@context": "http://schema.org",
			"@type": "Article",
			"headline": {{ .Title }},
			"author": {
				"@type": "Person",
				"name": "{{ or .Params.author .Site.Params.author }}"
			},
			"datePublished": "{{ .Date.Format "2006-01-02" }}",
			"description": {{ or .Description .Summary }},
			"wordCount": {{ .WordCount }},
			"mainEntityOfPage": "True",
			"dateModified": "{{ .Lastmod.Format "2006-01-02" }}",
			"image": {
				"@type": "imageObject",
				"url": "{{ with or .Params.cover $cover $icon }}{{ .Permalink | absURL }}{{ end }}"
			},
			"publisher": {
				"@type": "Person",
				"name": "{{ or .Params.author .Site.Params.author .Site.Title }}",
				"logo": {
				"@type": "imageObject",
				"url": {{with $icon}}{{.Permalink}}{{else}}{{$staticIcon}}{{end}}
				}
			}
		}
	</script>
	{{- else -}}
	{{ "<!-- webpage metadata -->" | safeHTML }}
	<meta property="og:type" content="website" />
	<script defer type="application/ld+json">
		{ 
			"@context": "http://schema.org", 
			"@type": "WebSite", 
			"url": {{ .Permalink }}, 
			"name": "{{ .Site.Title }}", 
			"logo": {{with $icon}}{{.Permalink}}{{else}}{{$staticIcon}}{{end}}
		}
	</script>
	{{- end -}}

	{{/* auxiliary info */}}
	{{ "<!-- site presentation -->" | safeHTML }}
	{{- with $icon }}
	<link rel="shortcut icon" href='{{ .Permalink }}' sizes="{{.Width}}x{{.Height}}">
	{{- else -}}
	<link rel="shortcut icon" href='{{ $staticIcon }}' sizes="512x512">
	{{- end }}
	<meta name="theme-color" content="#ffffff" />
	<meta name="msapplication-TileColor" content="#ffffff" />
	<link rel="sitemap" type="application/xml" title="Sitemap" href="{{ .Site.BaseURL }}sitemap.xml" /> 
	{{ with .OutputFormats.Get "RSS" -}}
	<link href="{{ .Permalink }}" rel="feed alternate" type="application/rss+xml" title="{{ $.Site.Title }}" />
	{{- end }}
	<meta name="robots" content="index,follow" />
	<meta name="googlebot" content="index,follow" />