diff --git a/layouts/partials/extended_footer.html b/layouts/partials/extended_footer.html
new file mode 100644
index 0000000..f2374c7
--- /dev/null
+++ b/layouts/partials/extended_footer.html
@@ -0,0 +1,4 @@
+<!--
+If you want to include any custom html just before </body>, put it in /layouts/partials/extended_footer.html
+Do not put anything in this file - it's only here so that hugo won't throw an error if /layouts/partials/extended_footer.html doesn't exist.
+-->
diff --git a/layouts/partials/extended_head.html b/layouts/partials/extended_head.html
new file mode 100644
index 0000000..c422b63
--- /dev/null
+++ b/layouts/partials/extended_head.html
@@ -0,0 +1,4 @@
+<!--
+If you want to include any custom html just before </head>, put it in /layouts/partials/extended_head.html
+Do not put anything in this file - it's only here so that hugo won't throw an error if /layouts/partials/extended_head.html doesn't exist.
+-->
diff --git a/layouts/partials/footer.html b/layouts/partials/footer.html
index 1b7656c..5889c25 100644
--- a/layouts/partials/footer.html
+++ b/layouts/partials/footer.html
@@ -14,3 +14,4 @@
 
 <script src="{{ "assets/main.js" | absURL }}"></script>
 <script src="{{ "assets/prism.js" | absURL }}"></script>
+{{- partial "extended_footer.html" . }}
diff --git a/layouts/partials/head.html b/layouts/partials/head.html
index b016406..673564d 100644
--- a/layouts/partials/head.html
+++ b/layouts/partials/head.html
@@ -45,3 +45,6 @@
 {{ if .OutputFormats.Get "json" }}
 <link href="{{ if .OutputFormats.Get "json" }}{{ "feed.json" | absURL }}{{ end }}" rel="alternate" type="application/json" title="{{ .Site.Title }}" />
 {{ end }}
+
+<!-- head custom -->
+{{- partial "extended_head.html" . }}
\ No newline at end of file