diff --git a/docs/content/config/best-practices/spf.md b/docs/content/config/best-practices/spf.md
index 632337de..88643ffc 100644
--- a/docs/content/config/best-practices/spf.md
+++ b/docs/content/config/best-practices/spf.md
@@ -1,4 +1,4 @@
-From Wikipedia:
+From [Wikipedia](https://en.wikipedia.org/wiki/Sender_Policy_Framework):
 
 > Sender Policy Framework (SPF) is a simple email-validation system designed to detect email spoofing by providing a mechanism to allow receiving mail exchangers to check that incoming mail from a domain comes from a host authorized by that domain's administrators. The list of authorized sending hosts for a domain is published in the Domain Name System (DNS) records for that domain in the form of a specially formatted TXT record. Email spam and phishing often use forged "from" addresses, so publishing and checking SPF records can be considered anti-spam techniques.