diff --git a/src/server/index.js b/src/server/index.js
index c348a13..313a15b 100644
--- a/src/server/index.js
+++ b/src/server/index.js
@@ -32,6 +32,10 @@ import * as doipjs from 'doipjs'
 import { fetchWKD, fetchHKP, fetchSignature, fetchKeybase } from './keys.js'
 import libravatar from 'libravatar'
 
+const scheme = process.env.PROXY_SCHEME ? process.env.PROXY_SCHEME
+: process.env.SCHEME ? process.env.SCHEME 
+: 'https'
+
 const generateWKDProfile = async (id) => {
   logger.debug('Generating a WKD profile',
     { component: 'wkd_profile_generator', action: 'start', profile_id: id })
@@ -46,7 +50,7 @@ const generateWKDProfile = async (id) => {
       keyData = processKeyData(keyData)
 
       const keyoxideData = {}
-      keyoxideData.url = `${process.env.SCHEME}://${process.env.DOMAIN}/wkd/${id}`
+      keyoxideData.url = `${scheme}://${process.env.DOMAIN}/wkd/${id}`
 
       logger.debug('Generating a WKD profile',
         { component: 'wkd_profile_generator', action: 'done', profile_id: id })
@@ -88,9 +92,9 @@ const generateHKPProfile = async (id, keyserverDomain) => {
 
       const keyoxideData = {}
       if (!keyserverDomain || keyserverDomain === 'keys.openpgp.org') {
-        keyoxideData.url = `${process.env.SCHEME}://${process.env.DOMAIN}/hkp/${id}`
+        keyoxideData.url = `${scheme}://${process.env.DOMAIN}/hkp/${id}`
       } else {
-        keyoxideData.url = `${process.env.SCHEME}://${process.env.DOMAIN}/hkp/${keyserverDomain}/${id}`
+        keyoxideData.url = `${scheme}://${process.env.DOMAIN}/hkp/${keyserverDomain}/${id}`
       }
 
       logger.debug('Generating a HKP profile',
@@ -196,7 +200,7 @@ const generateKeybaseProfile = async (username, fingerprint) => {
       keyData = processKeyData(keyData)
 
       const keyoxideData = {}
-      keyoxideData.url = `${process.env.SCHEME}://${process.env.DOMAIN}/keybase/${username}/${fingerprint}`
+      keyoxideData.url = `${scheme}://${process.env.DOMAIN}/keybase/${username}/${fingerprint}`
 
       logger.debug('Generating a Keybase profile',
         { component: 'keybase_profile_generator', action: 'done', username, fingerprint })