diff --git a/main.js b/main.js
index f6d84e2..ba00129 100644
--- a/main.js
+++ b/main.js
@@ -5,6 +5,15 @@ import {
   outputAlphabetEmoji
 } from "./alphabets.js";
 
+let domain = window.location.hostname;
+if (domain !== "ha.mr" && domain !== "www.ha.mr") {
+  console.log(`This page is intended to be used on the ha.mr domain. You are currently on ${domain}.`);
+}
+const webPort = window.location.port;
+if (webPort && webPort !== "80" && webPort !== "443") {
+  domain += `:${webPort}`;
+}
+
 var settings = {
   emoji: false,
   qr: false
@@ -116,8 +125,8 @@ function updateOutput () {
       outputRatioElement.textContent = "Output is the same length as the input";
       outputRatioElement.style.color = "gray";
     }
-    outputLinkElement.textContent = `http://ha.mr#${output}`;
-    outputLinkElement.href = `http://ha.mr#${output}`;
+    outputLinkElement.textContent = `http://${domain}#${output}`;
+    outputLinkElement.href = `http://${domain}#${output}`;
     outputLinkElement.style.color = "";
     if (settings.qr) {
       const correctionLevels = ["L", "M", "Q", "H"];
@@ -125,7 +134,8 @@ function updateOutput () {
       qrCodeImage.style.display = "inline";
       qrCodeCorrectionLevelContainer.style.display = "inline";
 
-      const qrCodeLink = `HTTP://HA.MR/${compress(input, outputAlphabetQR)}`;
+      const qrCodeDomain = domain.toUpperCase();
+      const qrCodeLink = `HTTP://${qrCodeDomain}/${compress(input, outputAlphabetQR)}`;
 
       if (!qrCorrectionManuallySet) {
         const optimalLevel = getOptimalErrorCorrectionLevel(qrCodeLink);
diff --git a/standalone.js b/standalone.js
index 5c9bc16..55b0f06 100644
--- a/standalone.js
+++ b/standalone.js
@@ -7,8 +7,10 @@ import {
 
 const input = process.argv[2]?.trim();
 const alphabetName = process.argv[3]?.trim() || "ascii";
+const command = process.argv[4]?.trim() || "encode";
 if (!input) {
-  console.error(`Usage: hamr <link> [ascii|qr|emoji]`);
+  console.error(`Usage: hamr <link> [ascii|qr|emoji] {decode|encode}`);
+  console.error(`The final argument is optional and defaults to "encode".`);
   process.exit(1);
 }
 
@@ -19,9 +21,13 @@ if (input.toLowerCase().startsWith("http://ha.mr")) {
   payload = input.slice(13);
 } else if (input.toLowerCase().startsWith("ha.mr")) {
   payload = input.slice(5);
+} else if (command === "decode") {
+  const pos = input.indexOf("#");
+  payload = input.slice(pos);
+  console.log(`Payload: ${payload}`);
 }
 
-if (payload) {
+if (payload || command === "decode") {
   const isQRCode = input[0] === "/";
   payload = payload.slice(1);
   const useEmoji = Array.from(payload).some(c => !outputAlphabetASCII.includes(c));