diff --git a/nais/dev-gcp-ekstern.yaml b/nais/dev-gcp-ekstern.yaml
index ff810796..9d2a34a2 100644
--- a/nais/dev-gcp-ekstern.yaml
+++ b/nais/dev-gcp-ekstern.yaml
@@ -36,8 +36,6 @@ spec:
           value: https://arbeidsgiver.ekstern.dev.nav.no/min-side-arbeidsgiver
         - name: FOREBYGGE_FRAVAR_URL
           value: https://arbeidsgiver.ekstern.dev.nav.no/forebygge-fravar
-        - name: GRAFANA_AGENT_COLLECTOR_URL
-          value: null
     accessPolicy:
         outbound:
             external:
diff --git a/server/src/environment.ts b/server/src/environment.ts
index 6296565a..21b0e25a 100644
--- a/server/src/environment.ts
+++ b/server/src/environment.ts
@@ -1,4 +1,4 @@
-import { z } from 'zod';
+import { z, ZodEffects, ZodOptional, ZodString } from 'zod';
 import { logger } from './backend-logger.js';
 
 export const MILJØ = {
@@ -12,6 +12,7 @@ export type MILJØ = (typeof MILJØ)[keyof typeof MILJØ];
 const isMiljø = (value: string): value is MILJØ => {
     return (Object.values(MILJØ) as string[]).includes(value);
 };
+
 function getCurrentEnvironment() {
     const { MILJO = 'local' } = process.env;
     return MILJO;
@@ -20,15 +21,34 @@ function getCurrentEnvironment() {
 function errorMap(issue: z.ZodIssueOptionalMessage, ctx: z.ErrorMapCtx): { message: string } {
     return { message: `Kunne ikke parse miljøvariabler. [${ctx.defaultError}]` };
 }
+
 export function getFrontendEnvs() {
     try {
-        return z
+        const miljø = z
             .object({
                 MILJO: z.string().refine(isMiljø),
-                MIN_SIDE_ARBEIDSGIVER_URL: z.string().url(),
-                GRAFANA_AGENT_COLLECTOR_URL: z.string().url(),
             })
             .parse(process.env, { errorMap: errorMap });
+
+        let shape: {
+            GRAFANA_AGENT_COLLECTOR_URL: ZodString | ZodOptional<ZodString>;
+            MIN_SIDE_ARBEIDSGIVER_URL: ZodString;
+            MILJO: ZodEffects<ZodString>;
+        } = {
+            MILJO: z.string().refine(isMiljø),
+            MIN_SIDE_ARBEIDSGIVER_URL: z.string().url(),
+            GRAFANA_AGENT_COLLECTOR_URL: z.string().url(),
+        };
+
+        if (miljø.MILJO === MILJØ.DEV_EKSTERN) {
+            shape = {
+                MILJO: z.string().refine(isMiljø),
+                MIN_SIDE_ARBEIDSGIVER_URL: z.string().url(),
+                GRAFANA_AGENT_COLLECTOR_URL: z.string().url().optional(),
+            };
+        }
+
+        return z.object(shape).parse(process.env, { errorMap: errorMap });
     } catch (err) {
         if (process.env.NODE_ENV === 'development') {
             return {