diff --git a/app/src/api/cmd.ts b/app/src/api/cmd.ts
index 5bb7aca9..9be352a5 100644
--- a/app/src/api/cmd.ts
+++ b/app/src/api/cmd.ts
@@ -104,13 +104,17 @@ export const userKey = "SPHINX_TOKEN";
 
 export async function send_cmd(type: CmdType, data: CmdData, tag?: string) {
   const txt = JSON.stringify({ type, data });
+  const encodedTxt = encodeURIComponent(txt);
   let ret = "";
   try {
-    const r = await fetch(`${root}/cmd?txt=${txt}&tag=${tag || "SWARM"}`, {
-      headers: {
-        "x-jwt": localStorage.getItem(userKey),
-      },
-    });
+    const r = await fetch(
+      `${root}/cmd?txt=${encodedTxt}&tag=${tag || "SWARM"}`,
+      {
+        headers: {
+          "x-jwt": localStorage.getItem(userKey),
+        },
+      }
+    );
     ret = await r.text();
     const jj = JSON.parse(ret);
     if (jj && jj["stack_error"]) {
diff --git a/src/bin/super/superapp/src/Remotes.svelte b/src/bin/super/superapp/src/Remotes.svelte
index 6b6fc1d3..1b4a468f 100644
--- a/src/bin/super/superapp/src/Remotes.svelte
+++ b/src/bin/super/superapp/src/Remotes.svelte
@@ -23,7 +23,11 @@
   import { remotes, tribes } from "./store";
   import { onMount } from "svelte";
   import type { Remote } from "./types/types";
-  import { getSwarmNumber, splitHost } from "./utils/index";
+  import {
+    getSwarmNumber,
+    isValidVanityAddress,
+    splitHost,
+  } from "./utils/index";
   import { selectedNode } from "./store";
   import {
     create_new_swarm_ec2,
@@ -60,6 +64,7 @@
   let swarm_name_width = max_input_with;
   let aws_instance_types = [];
   let selected_instance = "";
+  let vanity_address_error = "";
 
   let selectedRowIds = [];
 
@@ -494,7 +499,10 @@
   }
 
   function updateVanityAddressWidth(event) {
+    vanity_address_error = "";
     vanity_address = event.target.value.replace(/\s+/g, "");
+    vanity_address_error = isValidVanityAddress(vanity_address);
+
     const span = document.querySelector(".vanity_address_measure");
     vanity_input_width = span.offsetWidth;
     if (!vanity_input_width) {
@@ -671,7 +679,10 @@
   <Modal
     bind:open={open_create_ec2}
     modalHeading="Create New Swarm Ec2 Instance"
-    primaryButtonDisabled={isSubmitting || !name || !selected_instance}
+    primaryButtonDisabled={isSubmitting ||
+      !name ||
+      !selected_instance ||
+      vanity_address_error.length > 0}
     primaryButtonText={isSubmitting ? "Loading..." : "Create"}
     secondaryButtonText="Cancel"
     on:click:button--secondary={() => (open_create_ec2 = false)}
@@ -711,17 +722,19 @@
         {/if}
       </div>
     </div>
-    <Select
-      on:change={(e) => (selected_instance = e.target.value)}
-      helperText="Select Ec2 Instance Size"
-      labelText="Ec2 Instance Size"
-      selected={selected_instance}
-    >
-      <SelectItem value={""} text={"Select Size"} />
-      {#each aws_instance_types as option}
-        <SelectItem value={option.value} text={option.name} />
-      {/each}
-    </Select>
+    <div class="select_instance_container">
+      <Select
+        on:change={(e) => (selected_instance = e.target.value)}
+        helperText="Select Ec2 Instance Size"
+        labelText="Ec2 Instance Size"
+        selected={selected_instance}
+      >
+        <SelectItem value={""} text={"Select Size"} />
+        {#each aws_instance_types as option}
+          <SelectItem value={option.value} text={option.name} />
+        {/each}
+      </Select>
+    </div>
     <div class="custom_text_input_container">
       <label class="customlabel" for="label">Vanity Address</label>
       <div class="custom_input_container">
@@ -740,6 +753,7 @@
           <span class="suffix">{domain}</span>
         {/if}
       </div>
+      <small class="error-message">{vanity_address_error}</small>
     </div>
   </Modal>
 </main>
@@ -774,7 +788,6 @@
     overflow: hidden;
     border: solid 1px #494949;
     border-radius: 0.5rem;
-    margin-bottom: 1rem;
   }
 
   .suffix {
@@ -818,4 +831,15 @@
     border: none;
     margin: 0;
   }
+
+  .error-message {
+    color: #d32f2f;
+    margin-top: 0;
+    font-size: 0.7rem;
+  }
+
+  .select_instance_container {
+    margin-bottom: 1rem;
+    margin-top: 1rem;
+  }
 </style>
diff --git a/src/bin/super/superapp/src/utils/index.ts b/src/bin/super/superapp/src/utils/index.ts
index d002cef9..d5cb5e48 100644
--- a/src/bin/super/superapp/src/utils/index.ts
+++ b/src/bin/super/superapp/src/utils/index.ts
@@ -19,3 +19,22 @@ export function getSwarmNumber(default_host: string) {
     return "";
   }
 }
+
+export function isValidVanityAddress(vanity_address: string) {
+  const valid_chars = /^[a-zA-Z0-9-]+$/; // Only letters, numbers, and hyphens
+  const consecutive_hyphens = /--/; // Check for consecutive hyphens
+
+  if (vanity_address.startsWith("-") || vanity_address.endsWith("-")) {
+    return "Hyphen cannot be the first or last character.";
+  }
+
+  if (consecutive_hyphens.test(vanity_address)) {
+    return "Hyphens cannot appear consecutively.";
+  }
+
+  if (!valid_chars.test(vanity_address) && vanity_address) {
+    return "Vanity address can only contain letters, numbers, and hyphens.";
+  }
+
+  return "";
+}
diff --git a/src/bin/super/util.rs b/src/bin/super/util.rs
index f3ea62bb..6ef53544 100644
--- a/src/bin/super/util.rs
+++ b/src/bin/super/util.rs
@@ -519,6 +519,18 @@ async fn add_domain_name_to_route53(domain_name: &str, public_ip: &str) -> Resul
 
 //Sample execution function
 pub async fn create_swarm_ec2(info: &CreateEc2InstanceInfo) -> Result<(), Error> {
+    if let Some(vanity_address) = &info.vanity_address {
+        if !vanity_address.is_empty() {
+            if let Some(subdomain) = vanity_address.strip_suffix(".sphinx.chat") {
+                let domain_status = is_valid_domain(subdomain.to_string());
+                if !domain_status.is_empty() {
+                    return Err(anyhow!(domain_status));
+                }
+            } else {
+                return Err(anyhow!("Vanity Address doesn't match the expected format."));
+            }
+        }
+    }
     let ec2_intance_id = create_ec2_instance(
         info.name.clone(),
         info.vanity_address.clone(),
@@ -542,3 +554,28 @@ pub async fn create_swarm_ec2(info: &CreateEc2InstanceInfo) -> Result<(), Error>
     log::info!("Public_IP: {}", ec2_ip_address);
     Ok(())
 }
+
+fn is_valid_domain(domain: String) -> String {
+    let valid_chars = |c: char| c.is_ascii_alphanumeric() || c == '-';
+
+    if domain.starts_with('-') || domain.ends_with('-') {
+        return "Hyphen cannot be the first or last character.".to_string();
+    }
+
+    let mut previous_char: Option<char> = None;
+    for c in domain.chars() {
+        if !valid_chars(c) {
+            return "Domain can only contain letters, numbers, and hyphens.".to_string();
+        }
+
+        if let Some(prev) = previous_char {
+            if prev == '-' && c == '-' {
+                return "Hyphens cannot appear consecutively.".to_string();
+            }
+        }
+
+        previous_char = Some(c);
+    }
+
+    "".to_string()
+}