diff --git a/config.toml b/config.toml
index 8a2573d..eb0a3af 100644
--- a/config.toml
+++ b/config.toml
@@ -20,6 +20,9 @@ highlight = false
 
 [author]
 name = "Rohan Kumar"
+first = "Rohan"
+last = "Kumar"
+nick = "Seirdy"
 
 [menu]
   [[menu.main]]
diff --git a/layouts/partials/head.html b/layouts/partials/head.html
index 2273829..0a4e8dd 100644
--- a/layouts/partials/head.html
+++ b/layouts/partials/head.html
@@ -27,6 +27,7 @@
 <link rel="webmention" href="https://seirdy.one/webmentions/receive">
 {{ end -}}
 <link rel="canonical" href="https://seirdy.one{{ .RelPermalink }}">
+<!-- inline CSS; remember to allow it with a hash in the CSP -->
 {{ $resources := slice -}}
 {{ $resources = $resources | append (resources.Get "/css/main.css") -}}
 {{ $dark := .Site.Params.dark | default "auto" -}}
@@ -57,6 +58,9 @@
 <meta property="og:image:alt" content="White-on-black colon and semicolon">
 <meta property="og:url" content="https://seirdy.one{{ .RelPermalink }}">
 <meta property="og:description" content="{{ if .Params.description }}{{ .Params.description }}{{ else }}{{ .Site.Params.Description }}{{ end }}">
+<meta property="profile:first_name" content="{{ .Site.Author.first }}">
+<meta property="profile:last_name" content="{{ .Site.Author.last }}">
+<meta property="profile:username" content="{{ .Site.Author.nick }}">
 <meta property="article:author" content="{{ .Site.Author.name }}">
 <meta property="article:published_time" content="{{ .Date.Format "2006-01-02T15:04:05Z07:00" }}">
 {{ if lt .Date .Lastmod -}}