Make Ladill Link short URLs fully dynamic at click time.

Forward query strings and path suffixes to the live destination, resolve public hosts from config/custom domains instead of hardcoding ladl.link, and keep proxy Location rewrites on the visitor host.

app/Services/Afia/AfiaService.php

@@ -102,7 +102,7 @@ class AfiaService
         What Ladill Link does and where things live:
         - Overview (Dashboard): link count, recent clicks, and wallet balance.
         - My Links: create, edit, enable/disable, and delete short links. Each new link debits a small fee from the Ladill wallet (see Settings or the create screen for the current price).
-        - Public URLs: default domain is ladl.link/{slug}. Links can also use a verified custom domain from Custom Domains.
+        - Public URLs: default domain is configured (usually ladl.link/{slug}) and always resolved live — custom domains from Settings replace it when set as default.
         - Analytics: click totals and trends across links.
         - Custom Domains: connect a domain you own, verify DNS, and set a default domain for new links.
         - Settings: default domain preference and account shortcuts.

app/Services/CustomDomain/LinkCustomDomainService.php

@@ -103,11 +103,11 @@ class LinkCustomDomainService
     public function isAppHost(string $host): bool
     {
         $host = preg_replace('/^www\./', '', strtolower(trim($host)));
+        $public = (string) config('customdomain.public_host', config('link.public_domain', 'ladl.link'));
         $known = array_filter([
             (string) config('customdomain.app_host'),
-            (string) config('customdomain.public_host'),
-            'ladl.link',
-            'www.ladl.link',
+            $public,
+            'www.'.$public,
         ]);
 
         return in_array($host, $known, true);

app/Services/Link/LinkPlatformProxy.php

@@ -55,7 +55,7 @@ class LinkPlatformProxy
                     return $followUp;
                 }
 
-                $response->headers->set('Location', $this->rewriteLocation($location, $slug));
+                $response->headers->set('Location', $this->rewriteLocation($request, $location, $slug));
             }
         }
 
@@ -97,8 +97,7 @@ class LinkPlatformProxy
         }
 
         $host = strtolower((string) ($parsed['host'] ?? ''));
-        $linkHost = strtolower((string) parse_url(LadillLink::baseUrl(), PHP_URL_HOST));
-        if ($host !== $linkHost) {
+        if (! $this->isLinkPublicHost($host, $request)) {
             return null;
         }
 
@@ -111,6 +110,18 @@ class LinkPlatformProxy
         return $this->forward($request, $slug, substr($path, strlen($slugPrefix)));
     }
 
+    private function isLinkPublicHost(string $host, Request $request): bool
+    {
+        $host = preg_replace('/^www\./', '', strtolower($host)) ?: $host;
+        $candidates = array_filter([
+            strtolower((string) parse_url(LadillLink::baseUrl(), PHP_URL_HOST)),
+            strtolower((string) config('link.public_domain', 'ladl.link')),
+            strtolower((string) $request->getHost()),
+        ]);
+
+        return in_array($host, $candidates, true);
+    }
+
     private function isEventsRegistrationPath(string $path): bool
     {
         return $path === 'register'
@@ -179,14 +190,16 @@ class LinkPlatformProxy
         return $flat;
     }
 
-    private function rewriteLocation(string $location, string $slug): string
+    private function rewriteLocation(Request $request, string $location, string $slug): string
     {
+        $publicBase = $this->publicBaseForRequest($request);
+
         foreach ([$this->platformBaseUrl(), $this->eventsBaseUrl()] as $base) {
             $prefix = $base.'/q/'.$slug;
             if (str_starts_with($location, $prefix)) {
                 $suffix = substr($location, strlen($prefix));
 
-                return LadillLink::url($slug).$suffix;
+                return rtrim($publicBase, '/').'/'.$slug.$suffix;
             }
         }
 
@@ -194,9 +207,28 @@ class LinkPlatformProxy
         if (str_starts_with($location, $transfer)) {
             $suffix = substr($location, strlen($transfer));
 
-            return LadillLink::url($slug).$suffix;
+            return rtrim($publicBase, '/').'/'.$slug.$suffix;
         }
 
         return $location;
     }
+
+    /** Keep the visitor on the host they used (custom domain or platform public domain). */
+    private function publicBaseForRequest(Request $request): string
+    {
+        $host = strtolower((string) $request->getHost());
+        $appHost = strtolower((string) (
+            config('customdomain.app_host')
+            ?: (parse_url((string) config('app.url'), PHP_URL_HOST) ?: '')
+        ));
+
+        // Dashboard host (link.ladill.com) is not a public short-link host.
+        if ($host === '' || $host === $appHost) {
+            return LadillLink::baseUrl();
+        }
+
+        $scheme = $request->getScheme() ?: 'https';
+
+        return $scheme.'://'.$host;
+    }
 }