diff --git a/Cargo.lock b/Cargo.lock
index 0d2eb64..b8f003b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4772,6 +4772,7 @@ dependencies = [
  "chrono-tz",
  "cot",
  "futures",
+ "idna",
  "image",
  "multer",
  "password-auth",
diff --git a/Cargo.toml b/Cargo.toml
index b72d1ee..20523c0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -20,6 +20,7 @@ tokio = { version = "1", features = ["fs", "process", "rt-multi-thread"] }
 uuid = { version = "1", features = ["v4"] }
 base64 = "0.22"
 urlencoding = "2"
+idna = "1"
 tracing = "0.1"
 tracing-subscriber = { version = "0.3", features = ["env-filter"] }
 web-push-native = "0.5"
diff --git a/src/admin.rs b/src/admin.rs
index c3664a4..2744ee8 100644
--- a/src/admin.rs
+++ b/src/admin.rs
@@ -322,6 +322,39 @@ struct ClientFormTemplate<'a> {
     client_id: i64,
     client_status: &'a str,
     client_token: &'a str,
+    /// Base origin for the portal link with any punycode host decoded to Unicode
+    /// (e.g. `https://мурняня.рф`); empty falls back to the browser origin.
+    portal_base: String,
+}
+
+/// Decodes any punycode (`xn--…`) labels in a URL's host to human-readable
+/// Unicode, keeping the scheme and trimming a trailing slash. Returns an empty
+/// string for empty input.
+fn humanize_domain(raw: &str) -> String {
+    let raw = raw.trim();
+    if raw.is_empty() {
+        return String::new();
+    }
+    let (scheme, rest) = match raw.split_once("://") {
+        Some((s, r)) => (Some(s), r),
+        None => (None, raw),
+    };
+    let (host, path) = match rest.split_once('/') {
+        Some((h, p)) => (h, Some(p)),
+        None => (rest, None),
+    };
+    let (unicode_host, _) = idna::domain_to_unicode(host);
+    let mut out = String::new();
+    if let Some(s) = scheme {
+        out.push_str(s);
+        out.push_str("://");
+    }
+    out.push_str(&unicode_host);
+    if let Some(p) = path.filter(|p| !p.is_empty()) {
+        out.push('/');
+        out.push_str(p);
+    }
+    out.trim_end_matches('/').to_string()
 }
 
 #[derive(Debug, Template)]
@@ -1270,6 +1303,7 @@ async fn client_new_page(request: Request, session: Session) -> cot::Result<Resp
         client_id: 0,
         client_status: "",
         client_token: "",
+        portal_base: String::new(),
     }
     .render()?;
     html_response(body, lang)
@@ -1295,6 +1329,13 @@ async fn client_edit_page(
     let t = lang.t();
     let action_url = format!("/admin/clients/{}/save", client.id);
     let cid = client.id.unwrap();
+    let site_domain_key = "site_domain".to_string();
+    let site_domain = query!(Setting, $key == site_domain_key)
+        .get(&db)
+        .await?
+        .map(|s| s.value)
+        .unwrap_or_default();
+    let portal_base = humanize_domain(&site_domain);
     let body = ClientFormTemplate {
         t,
         lang,
@@ -1312,6 +1353,7 @@ async fn client_edit_page(
         client_id: cid,
         client_status: &client.status,
         client_token: &client.media_token,
+        portal_base,
     }
     .render()?;
     html_response(body, lang)
@@ -3544,7 +3586,7 @@ pub fn admin_router() -> Router {
 
 #[cfg(test)]
 mod tests {
-    use super::preserved_secret_value;
+    use super::{humanize_domain, preserved_secret_value};
 
     #[test]
     fn keeps_masks_and_updates_secrets_consistently() {
@@ -3553,4 +3595,19 @@ mod tests {
         assert_eq!(preserved_secret_value("stored", "", true), "");
         assert_eq!(preserved_secret_value("stored", "new", true), "new");
     }
+
+    #[test]
+    fn decodes_punycode_host_to_unicode() {
+        assert_eq!(
+            humanize_domain("https://xn--l1acako8eb.xn--p1ai"),
+            "https://мурняня.рф"
+        );
+        assert_eq!(
+            humanize_domain("https://xn--l1acako8eb.xn--p1ai/"),
+            "https://мурняня.рф"
+        );
+        // Plain ASCII domains are returned unchanged (minus trailing slash).
+        assert_eq!(humanize_domain("https://example.com/"), "https://example.com");
+        assert_eq!(humanize_domain(""), "");
+    }
 }
diff --git a/templates/admin/client_form.html b/templates/admin/client_form.html
index 008c193..eefc81d 100644
--- a/templates/admin/client_form.html
+++ b/templates/admin/client_form.html
@@ -72,7 +72,8 @@
     <script src="https://cdn.jsdelivr.net/npm/qrious@4.0.2/dist/qrious.min.js"></script>
     <script>
         (function() {
-            var url = window.location.origin + '/client/{{ client_token }}';
+            var base = '{{ portal_base }}' || window.location.origin;
+            var url = base + '/client/{{ client_token }}';
             document.getElementById('portalUrl').value = url;
             new QRious({ element: document.getElementById('qrCanvas'), value: url, size: 180, level: 'M' });
         })();