diff --git a/init.el b/init.el
index 7b90d62..619af46 100644
--- a/init.el
+++ b/init.el
@@ -574,7 +574,6 @@
              db/lookup-smime-key
              db/org-onenote-open
              db/org-outlook-open
-             db/org-rfc-open
              db/dired-from-shell-command
              db/system-open))
 
@@ -710,7 +709,8 @@ With given ARG, display files in `db/important-document-path’."
              db/org-timestamp-difference
              db/org-capture-code-snippet
              hydra-org-clock/body
-             db/make-org-capture-frame))
+             db/make-org-capture-frame
+             db/org-rfc-open))
 
 (use-package org
   :commands (org-store-link)
diff --git a/site-lisp/db-customize.el b/site-lisp/db-customize.el
index cca17de..21a322c 100644
--- a/site-lisp/db-customize.el
+++ b/site-lisp/db-customize.el
@@ -49,6 +49,12 @@ are assumed to be of the form *.crt."
   :type 'string
   :set #'db/update-cert-file-directory)
 
+(defcustom db/rfc-cache-path nil
+  "Path where RFC documents are automatically downloaded to when opening rfc: links.
+If this path is not set, i.e., is null, no automatic download will happen."
+  :group 'personal-settings
+  :type '(choice (const nil) file))
+
 (provide 'db-customize)
 
 ;;; db-customize ends here
diff --git a/site-lisp/db-org.el b/site-lisp/db-org.el
index a6d561e..846e7cf 100644
--- a/site-lisp/db-org.el
+++ b/site-lisp/db-org.el
@@ -8,6 +8,8 @@
 
 ;;; Code:
 
+(require 'db-customize)
+
 
 ;;; Agenda Customization
 
@@ -435,6 +437,36 @@ Current Task: %s(db/org-clock-current-task); "
          (format "hy %s" tempfile))
       (delete-file tempfile))))
 
+
+;;; Custom link handlers
+
+(defun db/org-rfc-open (number)
+  "Open browser to show RFC of given NUMBER.
+If `db/rfc-cache-path' is defined, download the RFC in txt format
+there and open it.  If the RFC has already been downloaded
+before, just open it.  If `db/rfc-cache-path' is not defined,
+open RFC in HTML format in the default browser."
+  (cond
+   ((not (string-match "[1-9][0-9]*" number))
+    (user-error "Not a valid number for an RFC: %s" number))
+   ((and db/rfc-cache-path
+         (file-name-absolute-p db/rfc-cache-path)
+         (file-writable-p db/rfc-cache-path))
+    (let ((rfc-path (expand-file-name (format "rfc%s.txt" number)
+                                      db/rfc-cache-path)))
+      (cond
+       ((file-exists-p rfc-path)
+        (find-file rfc-path))
+       (t
+        (with-temp-buffer
+          (url-insert-file-contents (format "https://tools.ietf.org/rfc/rfc%s.txt"
+                                            number))
+          (write-file rfc-path))
+        (find-file rfc-path)))))
+   (t
+    (warn "`db/rfc-cache-path' not defined or not an absolute writable path, opening RFC in browser.")
+    (browse-url (concat "https://tools.ietf.org/html/rfc" number)))))
+
 
 ;;; End
 
diff --git a/site-lisp/db-utils.el b/site-lisp/db-utils.el
index 7328a09..01d8ded 100644
--- a/site-lisp/db-utils.el
+++ b/site-lisp/db-utils.el
@@ -504,12 +504,6 @@ This is done only if the value of this variable is not null."
     (user-error "Path for Outlook is not executable, please customize `db/path-to-outlook’."))
   (w32-shell-execute "open" db/path-to-outlook (concat "/select outlook:" id)))
 
-(defun db/org-rfc-open (number)
-  "Open browser to show RFC of given NUMBER."
-  (unless (string-match "[1-9][0-9]*" number)
-    (user-error "Not a valid number for an RFC: %s" number))
-  (browse-url (concat "https://tools.ietf.org/html/rfc" number)))
-
 
 ;;; Bookmarks