When redirected to TLD page by search engine, it suggests "You may search for...

When redirected to TLD page by search engine, it suggests "You may search for [query] instead" on the TLD page

src/app.ts

@@ -69,6 +69,11 @@ twig.extendFunction("punycodeToASCII", (input: string): string => {
   return punycode.toASCII(input);
 });
 
+// https://stackabuse.com/encoding-and-decoding-base64-strings-in-node-js/
+twig.extendFunction("base64Decode", (input: string): string => {
+  return Buffer.from(input, 'base64').toString('utf8');
+})
+
 /**
  * Is server in production mode?
  */

src/controllers/search.controller.ts

@@ -30,7 +30,9 @@ router.get("/", (req: Request, res: Response, next: NextFunction) => {
       /**
        * TLD check
        */
-      if(isDomainName(punycode.toASCII(query))) {
+      if(req.query.ignore_tld == "true") {
+        continue_search(query);
+      } else if(isDomainName(punycode.toASCII(query))) {
         const tld = punycode.toASCII(query);
 
         if(tld.toLowerCase() !== tld && tld.toUpperCase() !== tld) {
@@ -44,7 +46,7 @@ router.get("/", (req: Request, res: Response, next: NextFunction) => {
           resolver.resolveNs(tld)
             .then(addresses => {
               if(addresses.length > 2) {
-                res.redirect(`/tld/${tld}`)
+                res.redirect(`/tld/${tld}?from_search=true&orsq=${Buffer.from(query, 'utf8').toString('base64')}`)
               }
             })
             .catch(err => {

src/controllers/tld.controller.ts

@@ -101,6 +101,9 @@ router.get("/:tld", (req: Request, res: Response, next: NextFunction) => {
               "nameservers": nameservers,
 
               "nsAddr": nameserverAddresses, 
+
+              "fromSearch": req.query.from_search,
+              "originalSearchQuery": req.query.orsq,
             });
           })
           .catch(catcher)

views/tld/show.twig

@@ -3,6 +3,10 @@
 {% block body %}
   <h1>{{ title }}</h1>
 
+  {% if fromSearch == "true" and originalSearchQuery %}
+    <p>You may search for <a href="/search?q={{ base64Decode(originalSearchQuery)|e }}&amp;ignore_tld=true"><code>{{ base64Decode(originalSearchQuery)|e }}</code></a> instead.</p>
+  {% endif %}
+
   {% if tldUnicode != tld %}
     <p>Punycode: <code>.{{ tld }}</code></p>
   {% endif %}