diff --git a/src/config.ts b/src/config.ts
index 8fe1ed1..0306ab7 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -71,6 +71,7 @@ addDefaults(config, {
     },
     validityCheck: {
         userAgent: null,
+        userAgentR: null,
     },
     userCounterURL: null,
     userCounterRatio: 10,
diff --git a/src/routes/postBranding.ts b/src/routes/postBranding.ts
index bed298b..5850c4e 100644
--- a/src/routes/postBranding.ts
+++ b/src/routes/postBranding.ts
@@ -58,7 +58,7 @@ export async function postBranding(req: Request, res: Response) {
         const hashedIP = await getHashCache(getIP(req) + config.globalSalt as IPAddress);
         const isBanned = await checkBanStatus(hashedUserID, hashedIP);
 
-        if (!validSubmittedData(userAgent)) {
+        if (!validSubmittedData(userAgent, req.headers["user-agent"])) {
             Logger.warn(`Rejecting submission based on invalid data: ${hashedUserID} ${videoID} ${videoDuration} ${userAgent} ${req.headers["user-agent"]}`);
             res.status(200).send("OK");
             return;
diff --git a/src/routes/postSkipSegments.ts b/src/routes/postSkipSegments.ts
index ef4d4d9..0b828fd 100644
--- a/src/routes/postSkipSegments.ts
+++ b/src/routes/postSkipSegments.ts
@@ -509,7 +509,7 @@ export async function postSkipSegments(req: Request, res: Response): Promise<Res
     }
     const userID: HashedUserID = await getHashCache(paramUserID);
 
-    if (!validSubmittedData(userAgent)) {
+    if (!validSubmittedData(userAgent, req.headers["user-agent"])) {
         Logger.warn(`Rejecting submission based on invalid data: ${userID} ${videoID} ${videoDurationParam} ${userAgent} ${req.headers["user-agent"]}`);
         return res.status(200).send("OK");
     }
diff --git a/src/types/config.model.ts b/src/types/config.model.ts
index 0ffc136..84a328b 100644
--- a/src/types/config.model.ts
+++ b/src/types/config.model.ts
@@ -87,6 +87,7 @@ export interface SBSConfig {
     };
     validityCheck: {
         userAgent: string | null;
+        userAgentR: string | null;
     }
     minimumPrefix?: string;
     maximumPrefix?: string;
diff --git a/src/utils/permissions.ts b/src/utils/permissions.ts
index 073fa02..6bdb801 100644
--- a/src/utils/permissions.ts
+++ b/src/utils/permissions.ts
@@ -108,12 +108,32 @@ export async function canSubmit(userID: HashedUserID, category: Category): Promi
     }
 }
 
-export function validSubmittedData(userAgent: string): boolean {
+export function validSubmittedData(userAgent: string, userAgentR: string): boolean {
     if (!config.validityCheck.userAgent) {
         return true;
     }
 
-    return !new RegExp(config.validityCheck.userAgent).test(userAgent);
+    for (const key of Object.keys(config.validityCheck)) {
+        const check = (config.validityCheck as Record<string, string | null>)[key];
+        if (check === null) {
+            continue;
+        } else {
+            switch (key) {
+                case "userAgent":
+                    if (!userAgent.match(check)) {
+                        return false;
+                    }
+                    break;
+                case "userAgentR":
+                    if (!userAgentR.match(new RegExp(check))) {
+                        return false;
+                    }
+                    break;
+            }
+        }
+    }
+
+    return true;
 }
 
 export async function canSubmitGlobal(userID: HashedUserID): Promise<CanSubmitGlobalResult> {