diff --git a/docs/public/scripts/ssnc.js b/docs/public/scripts/ssnc.js
index 2369aa3..93310c7 100644
--- a/docs/public/scripts/ssnc.js
+++ b/docs/public/scripts/ssnc.js
@@ -1,111 +1,121 @@
-const prefix = document.getElementById("serial-prefix");
-const digits = document.getElementById("serial-digits");
-const result = document.getElementById("serial-result");
-const resultSerial = document.getElementById("serial-result-serial");
-const resultText = document.getElementById("serial-result-text");
+function initSerialChecker() {
+  const prefix = document.getElementById("serial-prefix");
+  const digits = document.getElementById("serial-digits");
+  const result = document.getElementById("serial-result");
+  const resultSerial = document.getElementById("serial-result-serial");
+  const resultText = document.getElementById("serial-result-text");
 
-function checkSerial(s) {
-  if (s.match(/^X[KJWT][JWCE]/)) return 'mariko';
-  if (s.match(/^HA[JKWE]/)) return 'switch2';
-  if (!s.match(/^XA[JKW9][1479]/)) return 'invalid';
+  if (!prefix || !digits) return;
 
-  if (s.length >= 10 && s.length < 14) s = s.padEnd(14, 'X');
-  if (s.length !== 14) return 'invalid';
+  function checkSerial(s) {
+    if (s.match(/^X[KJWT][JWCE]/)) return 'mariko';
+    if (s.match(/^HA[JKWE]/)) return 'switch2';
+    if (!s.match(/^XA[JKW9][1479]/)) return 'invalid';
 
-  const region = s[2];
-  const assemblyLine = parseInt(s[3]);
-  const checkingValue = parseInt(s.slice(3, 10));
+    if (s.length >= 10 && s.length < 14) s = s.padEnd(14, 'X');
+    if (s.length !== 14) return 'invalid';
 
-  if (region === 'K') return 'maybe';
-  if (region === '9') return 'maybe';
+    const region = s[2];
+    const assemblyLine = parseInt(s[3]);
+    const checkingValue = parseInt(s.slice(3, 10));
 
-  if (region === 'J') {
-    if (assemblyLine === 1) {
-      if (checkingValue < 1002000) return 'unpatched';
-      if (checkingValue < 1003000) return 'maybe';
-      return 'patched'
-    } else if (assemblyLine === 4) {
-      if (checkingValue < 4004400) return 'unpatched';
-      if (checkingValue < 4008300) return 'maybe';
-      return 'patched'
-    } else if (assemblyLine === 7) {
-      if (checkingValue < 7004000) return 'unpatched';
-      if (checkingValue < 7005000) return 'maybe';
-      return 'patched'
+    if (region === 'K') return 'maybe';
+    if (region === '9') return 'maybe';
+
+    if (region === 'J') {
+      if (assemblyLine === 1) {
+        if (checkingValue < 1002000) return 'unpatched';
+        if (checkingValue < 1003000) return 'maybe';
+        return 'patched'
+      } else if (assemblyLine === 4) {
+        if (checkingValue < 4004400) return 'unpatched';
+        if (checkingValue < 4008300) return 'maybe';
+        return 'patched'
+      } else if (assemblyLine === 7) {
+        if (checkingValue < 7004000) return 'unpatched';
+        if (checkingValue < 7005000) return 'maybe';
+        return 'patched'
+      }
     }
-  }
 
-  if (region === 'W') {
-    if (assemblyLine === 1) {
-      if (checkingValue < 1006500) return 'unpatched';
-      if (checkingValue < 1012000) return 'maybe';
-      return 'patched';
-    } else if (assemblyLine === 4) {
-      if (checkingValue < 4001100) return 'unpatched';
-      if (checkingValue < 4001200) return 'maybe';
-      return 'patched';
-    } else if (assemblyLine === 7) {
-      if (checkingValue < 7001750) return 'unpatched';
-      if (checkingValue < 7003000) return 'maybe';
-      return 'patched';
-    } else if (assemblyLine === 9) {
-      return 'maybe';
+    if (region === 'W') {
+      if (assemblyLine === 1) {
+        if (checkingValue < 1006500) return 'unpatched';
+        if (checkingValue < 1012000) return 'maybe';
+        return 'patched';
+      } else if (assemblyLine === 4) {
+        if (checkingValue < 4001100) return 'unpatched';
+        if (checkingValue < 4001200) return 'maybe';
+        return 'patched';
+      } else if (assemblyLine === 7) {
+        if (checkingValue < 7001750) return 'unpatched';
+        if (checkingValue < 7003000) return 'maybe';
+        return 'patched';
+      } else if (assemblyLine === 9) {
+        return 'maybe';
+      }
     }
+
+    return 'invalid';
   }
 
-  return 'invalid';
-}
-
-const messages = {
-  mariko:    { type: 'warning', text: 'This appears to be a <strong>Mariko (V2) Switch or Switch Lite</strong>. These are patched and not hackable via software, only via hardware modchip. Find trusted hardmodders <a href="https://nintendohomebrew.com/hardmodders">here</a>.' },
-  switch2:   { type: 'danger',  text: 'This appears to be a <strong>Switch 2</strong>. These are currently not hackable.' },
-  refurb:   { type: 'warning',  text: 'This prefix belongs to officially <strong>refurbished Switch</strong> consoles, it <strong>might be patched</strong>. The only way to know for sure is to manually push a payload. Continue to <a href="/user_guide/rcm/sending_payload.html">this page</a>.' },
-  maybe:     { type: 'warning', text: 'This serial <strong>might be patched</strong>. The only way to know for sure is to manually push a payload. Continue to <a href="/user_guide/rcm/sending_payload.html">this page</a>.' },
-  patched:   { type: 'danger',  text: 'This serial is <strong>patched</strong>. It is not hackable via software. Find trusted hardmodders <a href="https://nintendohomebrew.com/hardmodders">here</a>.' },
-  unpatched: { type: 'tip',     text: 'This serial is <strong>not patched</strong>! Click the following link to continue with the <a href="rcm/index">RCM path</a> of the guide.' },
-  invalid:   { type: 'danger',  text: 'This serial is <strong>invalid</strong>. Double-check you typed it correctly. At minimum, provide 6 digits after the prefix.' },
-}
-
-function redact(s) {
-  if (s.length <= 9) return s;
-  return s.slice(0, 9) + 'XXXX';
-}
-
-function outputResult(serial, {type, text}) {
-  resultSerial.innerText = serial;
-  resultText.innerHTML = text;
-  result.classList = type;
-}
-
-
-function serialChangeEvent() {
-  const d = digits.value.replace(/\D/g, '');
-  const s = (prefix.value + d).toUpperCase();
-
-  const earlyCheck = checkSerial(s.padEnd(14, 'X'));
-  if (earlyCheck === 'mariko' || earlyCheck === 'switch2') {
-    outputResult(prefix.value + "…", messages[earlyCheck]);
-    return;
+  const messages = {
+    mariko:    { type: 'warning', text: 'This appears to be a <strong>Mariko (V2) Switch or Switch Lite</strong>. These are patched and not hackable via software, only via hardware modchip. Find trusted hardmodders <a href="https://nintendohomebrew.com/hardmodders">here</a>.' },
+    switch2:   { type: 'danger',  text: 'This appears to be a <strong>Switch 2</strong>. These are currently not hackable.' },
+      refurb:   { type: 'warning',  text: 'This prefix belongs to officially <strong>refurbished Switch</strong> consoles, it <strong>might be patched</strong>. The only way to know for sure is to manually push a payload. Continue to <a href="/user_guide/rcm/sending_payload.html">this page</a>.' },
+      maybe:     { type: 'warning', text: 'This serial <strong>might be patched</strong>. The only way to know for sure is to manually push a payload. Continue to <a href="/user_guide/rcm/sending_payload.html">this page</a>.' },
+      patched:   { type: 'danger',  text: 'This serial is <strong>patched</strong>. It is not hackable via software. Find trusted hardmodders <a href="https://nintendohomebrew.com/hardmodders">here</a>.' },
+      unpatched: { type: 'tip',     text: 'This serial is <strong>not patched</strong>! Click the following link to continue with the <a href="rcm/index">RCM path</a> of the guide.' },
+      invalid:   { type: 'danger',  text: 'This serial is <strong>invalid</strong>. Double-check you typed it correctly. At minimum, provide 6 digits after the prefix.' },
   }
 
-  if (prefix.value === 'XAW9') {
-    outputResult(prefix.value + "…", messages.refurb);
-    return;
+  function redact(s) {
+    if (s.length <= 9) return s;
+    return s.slice(0, 9) + 'XXXX';
   }
 
-  if (prefix.value === 'XAK1') {
-    outputResult(prefix.value + "…", messages.maybe);
-    return;
+  function outputResult(serial, {type, text}) {
+    resultSerial.innerText = serial;
+    resultText.innerHTML = text;
+    result.classList = type;
   }
 
-  if (d.length < 6) {
-    result.classList = "serial-result-hidden";
-    return;
+
+  function serialChangeEvent() {
+    const d = digits.value.replace(/\D/g, '');
+    const s = (prefix.value + d).toUpperCase();
+
+    const earlyCheck = checkSerial(s.padEnd(14, 'X'));
+    if (earlyCheck === 'mariko' || earlyCheck === 'switch2') {
+      outputResult(prefix.value + "…", messages[earlyCheck]);
+      return;
+    }
+
+    if (prefix.value === 'XAW9') {
+      outputResult(prefix.value + "…", messages.refurb);
+      return;
+    }
+
+    if (prefix.value === 'XAK1') {
+      outputResult(prefix.value + "…", messages.maybe);
+      return;
+    }
+
+    if (d.length < 6) {
+      result.classList = "serial-result-hidden";
+      return;
+    }
+
+    const key = checkSerial(s);
+    outputResult(redact(s), messages[key]);
   }
 
-  const key = checkSerial(s);
-  outputResult(redact(s), messages[key]);
+  prefix.addEventListener("change", serialChangeEvent);
+  digits.addEventListener("input", serialChangeEvent);
 }
 
-prefix.addEventListener("change", serialChangeEvent);
-digits.addEventListener("input", serialChangeEvent);
\ No newline at end of file
+if (document.readyState === "loading") {
+  document.addEventListener("DOMContentLoaded", initSerialChecker);
+} else {
+  initSerialChecker();
+}