diff --git a/CHANGELOG.md b/CHANGELOG.md
index bcd8b3e2a..0ac11c08f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,9 @@
 
 ### v1.12.3
 
+**v1.12.3.9** *(2016-10-18)* - [[Userscript](https://raw.githubusercontent.com/ccd0/4chan-x/1.12.3.9/builds/4chan-X-noupdate.user.js)] [[Chrome extension](https://raw.githubusercontent.com/ccd0/4chan-x/1.12.3.9/builds/4chan-X-noupdate.crx)]
+- Add basic support for is.4chan.org domain.
+
 **v1.12.3.8** *(2016-10-13)* - [[Userscript](https://raw.githubusercontent.com/ccd0/4chan-x/1.12.3.8/builds/4chan-X-noupdate.user.js)] [[Chrome extension](https://raw.githubusercontent.com/ccd0/4chan-x/1.12.3.8/builds/4chan-X-noupdate.crx)]
 - Don't run 4chan X on the donation or advertisement purchase pages (it already didn't run on the pass purchase page).
 
diff --git a/builds/4chan-X-beta.crx b/builds/4chan-X-beta.crx
index a420fd81c..a65368cd2 100644
Binary files a/builds/4chan-X-beta.crx and b/builds/4chan-X-beta.crx differ
diff --git a/builds/4chan-X-beta.meta.js b/builds/4chan-X-beta.meta.js
index d04c14050..d1ec5e248 100644
--- a/builds/4chan-X-beta.meta.js
+++ b/builds/4chan-X-beta.meta.js
@@ -1,6 +1,6 @@
 // ==UserScript==
 // @name         4chan X beta
-// @version      1.12.3.8
+// @version      1.12.3.9
 // @minGMVer     1.14
 // @minFFVer     26
 // @namespace    4chan-X
@@ -14,6 +14,8 @@
 // @include      https://www.4chan.org/*
 // @include      http://i.4cdn.org/*
 // @include      https://i.4cdn.org/*
+// @include      http://is.4chan.org/*
+// @include      https://is.4chan.org/*
 // @include      https://www.google.com/recaptcha/api2/anchor?k=6Ldp2bsSAAAAAAJ5uyx_lx34lJeEpTLVkP5k04qc*
 // @include      https://www.google.com/recaptcha/api2/frame?*&k=6Ldp2bsSAAAAAAJ5uyx_lx34lJeEpTLVkP5k04qc*
 // @include      http://www.google.com/recaptcha/api/fallback?k=6Ldp2bsSAAAAAAJ5uyx_lx34lJeEpTLVkP5k04qc*
@@ -31,6 +33,7 @@
 // @exclude      http://www.4chan.org/donate?*
 // @exclude      https://www.4chan.org/donate?*
 // @connect      i.4cdn.org
+// @connect      is.4chan.org
 // @connect      *
 // @grant        GM_getValue
 // @grant        GM_setValue
diff --git a/builds/4chan-X-beta.user.js b/builds/4chan-X-beta.user.js
index 3d2796947..eb4e1f931 100644
--- a/builds/4chan-X-beta.user.js
+++ b/builds/4chan-X-beta.user.js
@@ -1,6 +1,6 @@
 // ==UserScript==
 // @name         4chan X beta
-// @version      1.12.3.8
+// @version      1.12.3.9
 // @minGMVer     1.14
 // @minFFVer     26
 // @namespace    4chan-X
@@ -14,6 +14,8 @@
 // @include      https://www.4chan.org/*
 // @include      http://i.4cdn.org/*
 // @include      https://i.4cdn.org/*
+// @include      http://is.4chan.org/*
+// @include      https://is.4chan.org/*
 // @include      https://www.google.com/recaptcha/api2/anchor?k=6Ldp2bsSAAAAAAJ5uyx_lx34lJeEpTLVkP5k04qc*
 // @include      https://www.google.com/recaptcha/api2/frame?*&k=6Ldp2bsSAAAAAAJ5uyx_lx34lJeEpTLVkP5k04qc*
 // @include      http://www.google.com/recaptcha/api/fallback?k=6Ldp2bsSAAAAAAJ5uyx_lx34lJeEpTLVkP5k04qc*
@@ -31,6 +33,7 @@
 // @exclude      http://www.4chan.org/donate?*
 // @exclude      https://www.4chan.org/donate?*
 // @connect      i.4cdn.org
+// @connect      is.4chan.org
 // @connect      *
 // @grant        GM_getValue
 // @grant        GM_setValue
@@ -144,7 +147,7 @@ docSet = function() {
 };
 
 g = {
-  VERSION:   '1.12.3.8',
+  VERSION:   '1.12.3.9',
   NAMESPACE: '4chan X.',
   boards:    {}
 };
@@ -13823,7 +13826,7 @@ Linkify = (function() {
       if (!Linkify.regString.test(this.info.comment)) {
         return;
       }
-      ref = $$('a[href^="http://i.4cdn.org/"], a[href^="https://i.4cdn.org/"]', this.nodes.comment);
+      ref = $$('a[href^="http://i.4cdn.org/"], a[href^="https://i.4cdn.org/"], a[href^="http://is.4chan.org/"], a[href^="https://is.4chan.org/"]', this.nodes.comment);
       for (j = 0, len = ref.length; j < len; j++) {
         link = ref[j];
         $.addClass(link, 'linkify');
@@ -22650,6 +22653,7 @@ Main = (function() {
           }
           return;
         case 'i.4cdn.org':
+        case 'is.4chan.org':
           if (!(pathname[2] && !/s\.jpg$/.test(pathname[2]))) {
             return;
           }
diff --git a/builds/4chan-X-noupdate.crx b/builds/4chan-X-noupdate.crx
index 971f6dc36..2f69587d0 100644
Binary files a/builds/4chan-X-noupdate.crx and b/builds/4chan-X-noupdate.crx differ
diff --git a/builds/4chan-X-noupdate.user.js b/builds/4chan-X-noupdate.user.js
index 70c9d3312..f5d0a9707 100644
--- a/builds/4chan-X-noupdate.user.js
+++ b/builds/4chan-X-noupdate.user.js
@@ -1,6 +1,6 @@
 // ==UserScript==
 // @name         4chan X
-// @version      1.12.3.8
+// @version      1.12.3.9
 // @minGMVer     1.14
 // @minFFVer     26
 // @namespace    4chan-X
@@ -14,6 +14,8 @@
 // @include      https://www.4chan.org/*
 // @include      http://i.4cdn.org/*
 // @include      https://i.4cdn.org/*
+// @include      http://is.4chan.org/*
+// @include      https://is.4chan.org/*
 // @include      https://www.google.com/recaptcha/api2/anchor?k=6Ldp2bsSAAAAAAJ5uyx_lx34lJeEpTLVkP5k04qc*
 // @include      https://www.google.com/recaptcha/api2/frame?*&k=6Ldp2bsSAAAAAAJ5uyx_lx34lJeEpTLVkP5k04qc*
 // @include      http://www.google.com/recaptcha/api/fallback?k=6Ldp2bsSAAAAAAJ5uyx_lx34lJeEpTLVkP5k04qc*
@@ -31,6 +33,7 @@
 // @exclude      http://www.4chan.org/donate?*
 // @exclude      https://www.4chan.org/donate?*
 // @connect      i.4cdn.org
+// @connect      is.4chan.org
 // @connect      *
 // @grant        GM_getValue
 // @grant        GM_setValue
@@ -144,7 +147,7 @@ docSet = function() {
 };
 
 g = {
-  VERSION:   '1.12.3.8',
+  VERSION:   '1.12.3.9',
   NAMESPACE: '4chan X.',
   boards:    {}
 };
@@ -13823,7 +13826,7 @@ Linkify = (function() {
       if (!Linkify.regString.test(this.info.comment)) {
         return;
       }
-      ref = $$('a[href^="http://i.4cdn.org/"], a[href^="https://i.4cdn.org/"]', this.nodes.comment);
+      ref = $$('a[href^="http://i.4cdn.org/"], a[href^="https://i.4cdn.org/"], a[href^="http://is.4chan.org/"], a[href^="https://is.4chan.org/"]', this.nodes.comment);
       for (j = 0, len = ref.length; j < len; j++) {
         link = ref[j];
         $.addClass(link, 'linkify');
@@ -22650,6 +22653,7 @@ Main = (function() {
           }
           return;
         case 'i.4cdn.org':
+        case 'is.4chan.org':
           if (!(pathname[2] && !/s\.jpg$/.test(pathname[2]))) {
             return;
           }
diff --git a/builds/4chan-X.crx b/builds/4chan-X.crx
index 6e3500f18..9ffb069c4 100644
Binary files a/builds/4chan-X.crx and b/builds/4chan-X.crx differ
diff --git a/builds/4chan-X.meta.js b/builds/4chan-X.meta.js
index 00471a04a..d0f06049a 100644
--- a/builds/4chan-X.meta.js
+++ b/builds/4chan-X.meta.js
@@ -1,6 +1,6 @@
 // ==UserScript==
 // @name         4chan X
-// @version      1.12.3.8
+// @version      1.12.3.9
 // @minGMVer     1.14
 // @minFFVer     26
 // @namespace    4chan-X
@@ -14,6 +14,8 @@
 // @include      https://www.4chan.org/*
 // @include      http://i.4cdn.org/*
 // @include      https://i.4cdn.org/*
+// @include      http://is.4chan.org/*
+// @include      https://is.4chan.org/*
 // @include      https://www.google.com/recaptcha/api2/anchor?k=6Ldp2bsSAAAAAAJ5uyx_lx34lJeEpTLVkP5k04qc*
 // @include      https://www.google.com/recaptcha/api2/frame?*&k=6Ldp2bsSAAAAAAJ5uyx_lx34lJeEpTLVkP5k04qc*
 // @include      http://www.google.com/recaptcha/api/fallback?k=6Ldp2bsSAAAAAAJ5uyx_lx34lJeEpTLVkP5k04qc*
@@ -31,6 +33,7 @@
 // @exclude      http://www.4chan.org/donate?*
 // @exclude      https://www.4chan.org/donate?*
 // @connect      i.4cdn.org
+// @connect      is.4chan.org
 // @connect      *
 // @grant        GM_getValue
 // @grant        GM_setValue
diff --git a/builds/4chan-X.user.js b/builds/4chan-X.user.js
index 8b43d5f05..579a87051 100644
--- a/builds/4chan-X.user.js
+++ b/builds/4chan-X.user.js
@@ -1,6 +1,6 @@
 // ==UserScript==
 // @name         4chan X
-// @version      1.12.3.8
+// @version      1.12.3.9
 // @minGMVer     1.14
 // @minFFVer     26
 // @namespace    4chan-X
@@ -14,6 +14,8 @@
 // @include      https://www.4chan.org/*
 // @include      http://i.4cdn.org/*
 // @include      https://i.4cdn.org/*
+// @include      http://is.4chan.org/*
+// @include      https://is.4chan.org/*
 // @include      https://www.google.com/recaptcha/api2/anchor?k=6Ldp2bsSAAAAAAJ5uyx_lx34lJeEpTLVkP5k04qc*
 // @include      https://www.google.com/recaptcha/api2/frame?*&k=6Ldp2bsSAAAAAAJ5uyx_lx34lJeEpTLVkP5k04qc*
 // @include      http://www.google.com/recaptcha/api/fallback?k=6Ldp2bsSAAAAAAJ5uyx_lx34lJeEpTLVkP5k04qc*
@@ -31,6 +33,7 @@
 // @exclude      http://www.4chan.org/donate?*
 // @exclude      https://www.4chan.org/donate?*
 // @connect      i.4cdn.org
+// @connect      is.4chan.org
 // @connect      *
 // @grant        GM_getValue
 // @grant        GM_setValue
@@ -144,7 +147,7 @@ docSet = function() {
 };
 
 g = {
-  VERSION:   '1.12.3.8',
+  VERSION:   '1.12.3.9',
   NAMESPACE: '4chan X.',
   boards:    {}
 };
@@ -13823,7 +13826,7 @@ Linkify = (function() {
       if (!Linkify.regString.test(this.info.comment)) {
         return;
       }
-      ref = $$('a[href^="http://i.4cdn.org/"], a[href^="https://i.4cdn.org/"]', this.nodes.comment);
+      ref = $$('a[href^="http://i.4cdn.org/"], a[href^="https://i.4cdn.org/"], a[href^="http://is.4chan.org/"], a[href^="https://is.4chan.org/"]', this.nodes.comment);
       for (j = 0, len = ref.length; j < len; j++) {
         link = ref[j];
         $.addClass(link, 'linkify');
@@ -22650,6 +22653,7 @@ Main = (function() {
           }
           return;
         case 'i.4cdn.org':
+        case 'is.4chan.org':
           if (!(pathname[2] && !/s\.jpg$/.test(pathname[2]))) {
             return;
           }
diff --git a/builds/4chan-X.zip b/builds/4chan-X.zip
index 9fd93d961..6ab8d7e6e 100644
Binary files a/builds/4chan-X.zip and b/builds/4chan-X.zip differ
diff --git a/builds/updates-beta.xml b/builds/updates-beta.xml
index 37afa4475..ae6f71292 100644
--- a/builds/updates-beta.xml
+++ b/builds/updates-beta.xml
@@ -1,7 +1,7 @@
 <?xml version='1.0' encoding='UTF-8'?>
 <gupdate xmlns='http://www.google.com/update2/response' protocol='2.0'>
   <app appid='lacclbnghgdicfifcamcmcnilckjamag'>
-    <updatecheck codebase='https://www.4chan-x.net/builds/4chan-X-beta.crx' version='1.12.3.8' />
+    <updatecheck codebase='https://www.4chan-x.net/builds/4chan-X-beta.crx' version='1.12.3.9' />
   </app>
 </gupdate>
 
diff --git a/builds/updates.xml b/builds/updates.xml
index d6bf4304a..96e28f358 100644
--- a/builds/updates.xml
+++ b/builds/updates.xml
@@ -1,7 +1,7 @@
 <?xml version='1.0' encoding='UTF-8'?>
 <gupdate xmlns='http://www.google.com/update2/response' protocol='2.0'>
   <app appid='lacclbnghgdicfifcamcmcnilckjamag'>
-    <updatecheck codebase='https://www.4chan-x.net/builds/4chan-X.crx' version='1.12.3.8' />
+    <updatecheck codebase='https://www.4chan-x.net/builds/4chan-X.crx' version='1.12.3.9' />
   </app>
 </gupdate>
 
diff --git a/version.json b/version.json
index 97534131b..d1701887a 100644
--- a/version.json
+++ b/version.json
@@ -1,4 +1,4 @@
 {
-  "version": "1.12.3.8",
-  "date": "2016-10-13T06:41:49.619Z"
+  "version": "1.12.3.9",
+  "date": "2016-10-18T19:37:23.603Z"
 }
\ No newline at end of file