diff --git a/server/src/service/business/monitorService.ts b/server/src/service/business/monitorService.ts
index 742e0200a..947a971fe 100644
--- a/server/src/service/business/monitorService.ts
+++ b/server/src/service/business/monitorService.ts
@@ -223,7 +223,8 @@ export class MonitorService implements IMonitorService {
 			checksData.monitorType !== "port" &&
 			checksData.monitorType !== "game" &&
 			checksData.monitorType !== "grpc" &&
-			checksData.monitorType !== "websocket"
+			checksData.monitorType !== "websocket" &&
+			checksData.monitorType !== "dns"
 		) {
 			throw new AppError({ message: `${monitor.type} monitors are not supported for uptime details`, status: 400 });
 		}
diff --git a/server/src/validation/checkValidation.ts b/server/src/validation/checkValidation.ts
index e511118e6..8a4a7938e 100644
--- a/server/src/validation/checkValidation.ts
+++ b/server/src/validation/checkValidation.ts
@@ -11,7 +11,7 @@ export const getChecksParamValidation = z.object({
 });
 
 export const getChecksQueryValidation = z.object({
-	type: z.enum(["http", "ping", "pagespeed", "hardware", "docker", "port", "game", "grpc", "websocket"]).optional(),
+	type: z.enum(["http", "ping", "pagespeed", "hardware", "docker", "port", "game", "grpc", "websocket", "dns"]).optional(),
 	sortOrder: z.enum(["asc", "desc"]),
 	limit: z.coerce.number().optional(),
 	dateRange: z.enum(["recent", "hour", "day", "week", "month", "all"]),
diff --git a/server/src/validation/monitorValidation.ts b/server/src/validation/monitorValidation.ts
index 5065a5aa1..beb990f71 100644
--- a/server/src/validation/monitorValidation.ts
+++ b/server/src/validation/monitorValidation.ts
@@ -1,5 +1,5 @@
 import { z } from "zod";
-import { booleanCoercion } from "./shared.js";
+import { booleanCoercion, dnsServerValidation } from "./shared.js";
 import { GeoContinents } from "@/types/geoCheck.js";
 import { DnsRecordTypes, MonitorMatchMethods, MonitorStatuses, MonitorTypes } from "@/types/monitor.js";
 
@@ -68,7 +68,7 @@ export const createMonitorBodyValidation = z.object({
 	geoCheckEnabled: z.boolean().optional(),
 	geoCheckLocations: z.array(z.enum(GeoContinents)).optional(),
 	geoCheckInterval: z.number().min(300000).optional(),
-	dnsServer: z.string().optional(),
+	dnsServer: dnsServerValidation.optional(),
 	dnsRecordType: z.enum(DnsRecordTypes).optional(),
 });
 
@@ -99,7 +99,7 @@ export const editMonitorBodyValidation = z.object({
 	geoCheckEnabled: z.boolean().optional(),
 	geoCheckLocations: z.array(z.enum(GeoContinents)).optional(),
 	geoCheckInterval: z.number().min(300000).optional(),
-	dnsServer: z.string().optional(),
+	dnsServer: dnsServerValidation.optional(),
 	dnsRecordType: z.enum(DnsRecordTypes).optional(),
 });
 
@@ -162,7 +162,7 @@ const importedMonitorSchema = z.object({
 	geoCheckEnabled: z.boolean().default(false),
 	geoCheckLocations: z.array(z.enum(GeoContinents)).default([]),
 	geoCheckInterval: z.number().min(300000).default(300000),
-	dnsServer: z.string().optional(),
+	dnsServer: dnsServerValidation.optional(),
 	dnsRecordType: z.enum(DnsRecordTypes).optional(),
 	createdAt: z.string().optional(),
 	updatedAt: z.string().optional(),
diff --git a/server/src/validation/shared.ts b/server/src/validation/shared.ts
index 28fd13c82..6b607cce3 100644
--- a/server/src/validation/shared.ts
+++ b/server/src/validation/shared.ts
@@ -15,6 +15,11 @@ export const nameValidation = z
 
 export const lowercaseEmailValidation = z.email().transform((val) => val.toLowerCase());
 
+export const dnsServerValidation = z
+	.string()
+	.min(1, "DNS server is required")
+	.refine((v) => z.ipv4().safeParse(v).success || z.ipv6().safeParse(v).success, "Enter a valid IPv4 or IPv6 address (e.g. 8.8.8.8)");
+
 export const booleanCoercion = z.preprocess((val) => {
 	if (val === "true" || val === true) return true;
 	if (val === "false" || val === false) return false;