diff --git a/experimental/CHANGELOG.md b/experimental/CHANGELOG.md
index 373fe3ea1c..c6b64299f0 100644
--- a/experimental/CHANGELOG.md
+++ b/experimental/CHANGELOG.md
@@ -13,6 +13,7 @@ All notable changes to experimental packages in this project will be documented
 ### :bug: (Bug Fix)
 
 * fix(otlp-transformer): remove type dependency on Long #3022 @legendecas
+* fix(grpc-exporter): use non-normalized URL to determine channel security #3019 @pichlermarc
 
 ### :books: (Refine Doc)
 
diff --git a/experimental/packages/exporter-trace-otlp-grpc/src/OTLPTraceExporter.ts b/experimental/packages/exporter-trace-otlp-grpc/src/OTLPTraceExporter.ts
index baafc4773a..f4b0554715 100644
--- a/experimental/packages/exporter-trace-otlp-grpc/src/OTLPTraceExporter.ts
+++ b/experimental/packages/exporter-trace-otlp-grpc/src/OTLPTraceExporter.ts
@@ -48,13 +48,7 @@ export class OTLPTraceExporter
   }
 
   getDefaultUrl(config: OTLPGRPCExporterConfigNode) {
-    return typeof config.url === 'string'
-      ? validateAndNormalizeUrl(config.url)
-      : getEnv().OTEL_EXPORTER_OTLP_TRACES_ENDPOINT.length > 0
-        ? validateAndNormalizeUrl(getEnv().OTEL_EXPORTER_OTLP_TRACES_ENDPOINT)
-        : getEnv().OTEL_EXPORTER_OTLP_ENDPOINT.length > 0
-          ? validateAndNormalizeUrl(getEnv().OTEL_EXPORTER_OTLP_ENDPOINT)
-          : validateAndNormalizeUrl(DEFAULT_COLLECTOR_URL);
+    return validateAndNormalizeUrl(this.getUrlFromConfig(config));
   }
 
   getServiceClientType() {
@@ -64,4 +58,14 @@ export class OTLPTraceExporter
   getServiceProtoPath(): string {
     return 'opentelemetry/proto/collector/trace/v1/trace_service.proto';
   }
+
+  getUrlFromConfig(config: OTLPGRPCExporterConfigNode): string {
+    if (typeof config.url === 'string') {
+      return config.url;
+    }
+
+    return getEnv().OTEL_EXPORTER_OTLP_TRACES_ENDPOINT ||
+      getEnv().OTEL_EXPORTER_OTLP_ENDPOINT ||
+      DEFAULT_COLLECTOR_URL;
+  }
 }
diff --git a/experimental/packages/opentelemetry-exporter-metrics-otlp-grpc/src/OTLPMetricExporter.ts b/experimental/packages/opentelemetry-exporter-metrics-otlp-grpc/src/OTLPMetricExporter.ts
index 71e6e9b105..90c6ceb92b 100644
--- a/experimental/packages/opentelemetry-exporter-metrics-otlp-grpc/src/OTLPMetricExporter.ts
+++ b/experimental/packages/opentelemetry-exporter-metrics-otlp-grpc/src/OTLPMetricExporter.ts
@@ -51,18 +51,22 @@ class OTLPMetricExporterProxy extends OTLPGRPCExporterNodeBase<ResourceMetrics,
   }
 
   getDefaultUrl(config: OTLPGRPCExporterConfigNode): string {
-    return typeof config.url === 'string'
-      ? validateAndNormalizeUrl(config.url)
-      : getEnv().OTEL_EXPORTER_OTLP_METRICS_ENDPOINT.length > 0
-        ? validateAndNormalizeUrl(getEnv().OTEL_EXPORTER_OTLP_METRICS_ENDPOINT)
-        : getEnv().OTEL_EXPORTER_OTLP_ENDPOINT.length > 0
-          ? validateAndNormalizeUrl(getEnv().OTEL_EXPORTER_OTLP_ENDPOINT)
-          : validateAndNormalizeUrl(DEFAULT_COLLECTOR_URL);
+    return validateAndNormalizeUrl(this.getUrlFromConfig(config));
   }
 
   convert(metrics: ResourceMetrics[]): IExportMetricsServiceRequest {
     return createExportMetricsServiceRequest(metrics);
   }
+
+  getUrlFromConfig(config: OTLPGRPCExporterConfigNode): string {
+    if (typeof config.url === 'string') {
+      return config.url;
+    }
+
+    return getEnv().OTEL_EXPORTER_OTLP_METRICS_ENDPOINT ||
+      getEnv().OTEL_EXPORTER_OTLP_ENDPOINT ||
+      DEFAULT_COLLECTOR_URL;
+  }
 }
 
 /**
diff --git a/experimental/packages/otlp-grpc-exporter-base/src/OTLPGRPCExporterNodeBase.ts b/experimental/packages/otlp-grpc-exporter-base/src/OTLPGRPCExporterNodeBase.ts
index 9cc349fe4e..87d7e01787 100644
--- a/experimental/packages/otlp-grpc-exporter-base/src/OTLPGRPCExporterNodeBase.ts
+++ b/experimental/packages/otlp-grpc-exporter-base/src/OTLPGRPCExporterNodeBase.ts
@@ -116,4 +116,5 @@ export abstract class OTLPGRPCExporterNodeBase<
 
   abstract getServiceProtoPath(): string;
   abstract getServiceClientType(): ServiceClientType;
+  abstract getUrlFromConfig(config: OTLPGRPCExporterConfigNode): string;
 }
diff --git a/experimental/packages/otlp-grpc-exporter-base/src/util.ts b/experimental/packages/otlp-grpc-exporter-base/src/util.ts
index 313618fa72..1d3791bd38 100644
--- a/experimental/packages/otlp-grpc-exporter-base/src/util.ts
+++ b/experimental/packages/otlp-grpc-exporter-base/src/util.ts
@@ -33,7 +33,7 @@ export function onInit<ExportItem, ServiceRequest>(
 ): void {
   collector.grpcQueue = [];
 
-  const credentials: grpc.ChannelCredentials = configureSecurity(config.credentials, collector.url);
+  const credentials: grpc.ChannelCredentials = configureSecurity(config.credentials, collector.getUrlFromConfig(config));
 
   const includeDirs = [path.resolve(__dirname, '..', 'protos')];
 
@@ -92,7 +92,7 @@ export function send<ExportItem, ServiceRequest>(
     collector.serviceClient.export(
       serviceRequest,
       collector.metadata || new grpc.Metadata(),
-      {deadline: deadline},
+      { deadline: deadline },
       (err: ExportServiceError) => {
         if (err) {
           diag.error('Service request', serviceRequest);
@@ -225,7 +225,7 @@ function retrieveCertChain(): Buffer | undefined {
 }
 
 function toGrpcCompression(compression: CompressionAlgorithm): GrpcCompressionAlgorithm {
-  if(compression === CompressionAlgorithm.NONE)
+  if (compression === CompressionAlgorithm.NONE)
     return GrpcCompressionAlgorithm.NONE;
   else if (compression === CompressionAlgorithm.GZIP)
     return GrpcCompressionAlgorithm.GZIP;
@@ -246,6 +246,6 @@ export function configureCompression(compression: CompressionAlgorithm | undefin
   } else {
     const definedCompression = getEnv().OTEL_EXPORTER_OTLP_TRACES_COMPRESSION || getEnv().OTEL_EXPORTER_OTLP_COMPRESSION;
 
-    return definedCompression === 'gzip' ? GrpcCompressionAlgorithm.GZIP: GrpcCompressionAlgorithm.NONE;
+    return definedCompression === 'gzip' ? GrpcCompressionAlgorithm.GZIP : GrpcCompressionAlgorithm.NONE;
   }
 }
diff --git a/experimental/packages/otlp-grpc-exporter-base/test/OTLPGRPCExporterNodeBase.test.ts b/experimental/packages/otlp-grpc-exporter-base/test/OTLPGRPCExporterNodeBase.test.ts
index aca3540763..ec28b53011 100644
--- a/experimental/packages/otlp-grpc-exporter-base/test/OTLPGRPCExporterNodeBase.test.ts
+++ b/experimental/packages/otlp-grpc-exporter-base/test/OTLPGRPCExporterNodeBase.test.ts
@@ -52,6 +52,10 @@ class MockCollectorExporter extends OTLPGRPCExporterNodeBase<
   getServiceProtoPath(): string {
     return 'opentelemetry/proto/collector/trace/v1/trace_service.proto';
   }
+
+  getUrlFromConfig(config: OTLPGRPCExporterConfigNode): string {
+    return '';
+  }
 }
 
 // Mocked _send which just saves the callbacks for later