diff --git a/documentation/content/en/books/porters-handbook/makefiles/_index.adoc b/documentation/content/en/books/porters-handbook/makefiles/_index.adoc
--- a/documentation/content/en/books/porters-handbook/makefiles/_index.adoc
+++ b/documentation/content/en/books/porters-handbook/makefiles/_index.adoc
@@ -1146,6 +1146,8 @@
 MAINTAINER=	mat@FreeBSD.org
 COMMENT=	BIND DNS suite with updated DNSSEC and DNS64
 
+WWW=		https://www.isc.org/bind/
+
 LICENSE=	ISCL
 
 # ISC releases things like 9.8.0-P1 or 9.8.1rc1, which our versioning does not like
@@ -2515,6 +2517,32 @@
 
 The COMMENT variable immediately follows the MAINTAINER variable in the [.filename]#Makefile#.
 
+[[website]]
+== Project website
+
+Each port should point to a website that provides more information about the software.
+
+[[website-www]]
+=== `WWW`
+
+A valid URL pointing to the project website or to other relevant information about the port.
+
+This is typically a project website maintained by the developers of the software:
+
+[.programlisting]
+....
+WWW=		http://ffmpeg.org/
+....
+
+But it can also be a directory or resource in the source code repository:
+
+[.programlisting]
+....
+WWW=		https://sourceforge.net/projects/mpd/
+....
+
+This information used to be placed into the last line of the pkg-descr file of the port.
+
 [[licenses]]
 == Licenses