fix: use fixed tld list

README.md

@@ -44,3 +44,45 @@ options:
   --tld-list-uri TLD_LIST_URI
                         Top Level Domains list (default: https://publicsuffix.org/list/public_suffix_list.dat)
 ```
+
+# Development
+
+## Updating `tld.txt`
+
+Go to [tld-list.com](https://tld-list.com) and open console.
+
+```js
+async function getValidTlds() {
+  const delay = (millis) =>
+    new Promise((resolve, reject) => {
+      setTimeout((_) => {
+        resolve();
+      }, millis);
+    });
+
+  const sourceData = await (
+    await fetch("https://tld-list.com/tlds-from-a-z")
+  ).text();
+  const regexp = /href="\/tld\/([\w\.]+)"/gm;
+  const outTlds = [];
+  let match;
+
+  while ((match = regexp.exec(sourceData)) !== null) {
+    const tld = match[1];
+    await delay(100);
+    console.log(tld);
+    const resp = await fetch(`https://tld-list.com/tld/${tld}`);
+    if (resp.status === 200) {
+      const content = await resp.text();
+      if (!content.includes("Registrars (0)")) {
+        outTlds.push(tld);
+      }
+    }
+  }
+  return outTlds;
+}
+
+const tlds = await getValidTlds();
+
+console.log(tlds.join(','));
+```