diff --git a/content.py b/content.py
index 7560d7e8..87fd69a6 100644
--- a/content.py
+++ b/content.py
@@ -11,6 +11,7 @@ import email.parser
 from shutil import copyfile
 from utils import loadJson
 from utils import fileLastModified
+from utils import getLinkPrefixes
 
 
 def switchWords(baseDir: str, nickname: str, domain: str, content: str) -> str:
@@ -129,8 +130,7 @@ def addWebLinks(content: str) -> str:
     if ':' not in content:
         return content
 
-    prefixes = ('https://', 'http://', 'dat://', 'i2p://', 'gnunet://',
-                'hyper://', 'gemini://', 'gopher://', 'briar:')
+    prefixes = getLinkPrefixes()
 
     # do any of these prefixes exist within the content?
     prefixFound = False
diff --git a/epicyon.py b/epicyon.py
index 4f923da5..ec753c79 100644
--- a/epicyon.py
+++ b/epicyon.py
@@ -49,6 +49,7 @@ from utils import getDomainFromActor
 from utils import getNicknameFromActor
 from utils import followPerson
 from utils import validNickname
+from utils import getProtocolPrefixes
 from media import archiveMedia
 from media import getAttachmentMediaType
 from delete import sendDeleteViaServer
@@ -1041,8 +1042,7 @@ if args.actor:
        args.actor.startswith('http') or \
        args.actor.startswith('dat'):
         # format: https://domain/@nick
-        prefixes = ('https://', 'http://', 'dat://', 'i2p://', 'gnunet://',
-                    'hyper://', 'gemini://', 'gopher://')
+        prefixes = getProtocolPrefixes()
         for prefix in prefixes:
             args.actor = args.actor.replace(prefix, '')
         args.actor = args.actor.replace('/@', '/users/')
diff --git a/inbox.py b/inbox.py
index 66fb8b01..a439d804 100644
--- a/inbox.py
+++ b/inbox.py
@@ -10,6 +10,7 @@ import json
 import os
 import datetime
 import time
+from utils import getProtocolPrefixes
 from utils import isBlogPost
 from utils import removeAvatarFromCache
 from utils import isPublicPost
@@ -1359,8 +1360,7 @@ def receiveAnnounce(recentPostsCache: {},
                   messageJson['type'])
         return False
 
-    prefixes = ('https://', 'http://', 'dat://', 'i2p://', 'gnunet://',
-                'hyper://', 'gemini://', 'gopher://')
+    prefixes = getProtocolPrefixes()
     # is the domain of the announce actor blocked?
     objectDomain = messageJson['object']
     for prefix in prefixes:
diff --git a/utils.py b/utils.py
index 2e642dda..5b9a667f 100644
--- a/utils.py
+++ b/utils.py
@@ -15,6 +15,20 @@ from pprint import pprint
 from calendar import monthrange
 
 
+def getProtocolPrefixes() -> []:
+    """Returns a list of valid prefixes
+    """
+    return ('https://', 'http://', 'dat://', 'i2p://', 'gnunet://',
+            'hyper://', 'gemini://', 'gopher://')
+
+
+def getLinkPrefixes() -> []:
+    """Returns a list of valid web link prefixes
+    """
+    return ('https://', 'http://', 'dat://', 'i2p://', 'gnunet://',
+            'hyper://', 'gemini://', 'gopher://', 'briar:')
+
+
 def removeAvatarFromCache(baseDir: str, actorStr: str) -> None:
     """Removes any existing avatar entries from the cache
     This avoids duplicate entries with differing extensions
diff --git a/webfinger.py b/webfinger.py
index b3a0f3d7..dbff7b61 100644
--- a/webfinger.py
+++ b/webfinger.py
@@ -21,13 +21,13 @@ from cache import getWebfingerFromCache
 from utils import loadJson
 from utils import loadJsonOnionify
 from utils import saveJson
+from utils import getProtocolPrefixes
 
 
 def parseHandle(handle: str) -> (str, str):
     if '.' not in handle:
         return None, None
-    prefixes = ('https://', 'http://', 'dat://', 'i2p://', 'gnunet://',
-                'hyper://', 'gemini://', 'gopher://')
+    prefixes = getProtocolPrefixes()
     handleStr = handle
     for prefix in prefixes:
         handleStr = handleStr.replace(prefix, '')
diff --git a/webinterface.py b/webinterface.py
index 73c3cd1f..aaaa316b 100644
--- a/webinterface.py
+++ b/webinterface.py
@@ -24,6 +24,7 @@ from ssb import getSSBAddress
 from tox import getToxAddress
 from matrix import getMatrixAddress
 from donate import getDonationUrl
+from utils import getProtocolPrefixes
 from utils import getFileCaseInsensitive
 from utils import searchBoxPosts
 from utils import isBlogPost
@@ -100,8 +101,7 @@ def getBlogAddress(actorJson: {}) -> str:
         if propertyValue['type'] != 'PropertyValue':
             continue
         propertyValue['value'] = propertyValue['value'].strip()
-        prefixes = ('https://', 'http://', 'dat://', 'i2p://', 'gnunet://',
-                    'hyper://', 'gemini://', 'gopher://')
+        prefixes = getProtocolPrefixes()
         prefixFound = False
         for prefix in prefixes:
             if propertyValue['value'].startswith(prefix):
@@ -139,9 +139,7 @@ def setBlogAddress(actorJson: {}, blogAddress: str) -> None:
     if propertyFound:
         actorJson['attachment'].remove(propertyFound)
 
-    prefixes = ('https://', 'http://', 'dat://', 'i2p://',
-                'gnunet://', 'hyper://', 'gemini://',
-                'gopher://')
+    prefixes = getProtocolPrefixes()
     prefixFound = False
     for prefix in prefixes:
         if blogAddress.startswith(prefix):
@@ -4007,9 +4005,7 @@ def individualPostAsHtml(recentPostsCache: {}, maxRecentPosts: int,
                     else:
                         postDomain = \
                             postJsonObject['object']['inReplyTo']
-                        prefixes = ('https://', 'http://', 'dat://', 'i2p://',
-                                    'gnunet://', 'hyper://', 'gemini://',
-                                    'gopher://')
+                        prefixes = getProtocolPrefixes()
                         for prefix in prefixes:
                             postDomain = postDomain.replace(prefix, '')
                         if '/' in postDomain: