diff --git a/backend/auth_passkey.go b/backend/auth_passkey.go
index b182e53..0b8f44d 100644
--- a/backend/auth_passkey.go
+++ b/backend/auth_passkey.go
@@ -3,6 +3,7 @@
 package main
 
 import (
+	"context"
 	"crypto/rand"
 	"encoding/base64"
 	"encoding/json"
@@ -246,6 +247,7 @@ func localAppHostCandidates() []string {
 		host = normalizeOriginHost(host)
 		if host != "" && !strings.Contains(host, ".") {
 			add(host + ".local")
+			addHostWithDNSSuffixes(add, host)
 		}
 	}
 
@@ -278,6 +280,44 @@ func addInterfaceIPv4Hosts(add func(string)) {
 		}
 
 		add(ip4.String())
+		addReverseLookupHosts(add, ip4)
+	}
+}
+
+func addHostWithDNSSuffixes(add func(string), host string) {
+	host = normalizeOriginHost(host)
+	if host == "" || strings.Contains(host, ".") {
+		return
+	}
+
+	for _, key := range []string{
+		"USERDNSDOMAIN",
+		"DNSDOMAIN",
+		"LOCALDOMAIN",
+	} {
+		suffix := normalizeOriginHost(os.Getenv(key))
+		if suffix == "" || !strings.Contains(suffix, ".") {
+			continue
+		}
+		add(host + "." + suffix)
+	}
+}
+
+func addReverseLookupHosts(add func(string), ip net.IP) {
+	if ip == nil {
+		return
+	}
+
+	ctx, cancel := context.WithTimeout(context.Background(), 500*time.Millisecond)
+	defer cancel()
+
+	names, err := net.DefaultResolver.LookupAddr(ctx, ip.String())
+	if err != nil {
+		return
+	}
+
+	for _, name := range names {
+		add(name)
 	}
 }
 
diff --git a/backend/dist/nsfwapp-linux-amd64 b/backend/dist/nsfwapp-linux-amd64
index bce836d..dd91f16 100644
Binary files a/backend/dist/nsfwapp-linux-amd64 and b/backend/dist/nsfwapp-linux-amd64 differ
diff --git a/backend/dist/nsfwapp.exe b/backend/dist/nsfwapp.exe
index fd73935..523625d 100644
Binary files a/backend/dist/nsfwapp.exe and b/backend/dist/nsfwapp.exe differ
diff --git a/backend/dist/nsfwapp_amd64.deb b/backend/dist/nsfwapp_amd64.deb
index ec46339..ef1c1ad 100644
Binary files a/backend/dist/nsfwapp_amd64.deb and b/backend/dist/nsfwapp_amd64.deb differ
diff --git a/backend/embed.go b/backend/embed.go
index 0a4b015..4a2ec8b 100644
--- a/backend/embed.go
+++ b/backend/embed.go
@@ -8,7 +8,7 @@ import (
 	"path/filepath"
 )
 
-//go:embed ml/*.py ml/detection_labels.json ai_server.py recorder-cert.pem recorder-key.pem yolo26n-pose.pt
+//go:embed ml/*.py ml/detection_labels.json ai_server.py yolo26n-pose.pt
 var embeddedMLFiles embed.FS
 
 func embeddedWriteFileIfNeeded(dstPath string, b []byte, perm os.FileMode) error {
@@ -126,42 +126,3 @@ func embeddedPoseModelPath() (string, error) {
 
 	return dstPath, nil
 }
-
-func embeddedTLSCertBytes() ([]byte, error) {
-	return embeddedMLFiles.ReadFile("recorder-cert.pem")
-}
-
-func embeddedTLSKeyBytes() ([]byte, error) {
-	return embeddedMLFiles.ReadFile("recorder-key.pem")
-}
-
-func embeddedTLSFilesDir() (string, string, error) {
-	dir := filepath.Join(os.TempDir(), "nsfwapp-tls")
-
-	if err := os.MkdirAll(dir, 0700); err != nil {
-		return "", "", err
-	}
-
-	certBytes, err := embeddedTLSCertBytes()
-	if err != nil {
-		return "", "", err
-	}
-
-	keyBytes, err := embeddedTLSKeyBytes()
-	if err != nil {
-		return "", "", err
-	}
-
-	certPath := filepath.Join(dir, "recorder-cert.pem")
-	keyPath := filepath.Join(dir, "recorder-key.pem")
-
-	if err := os.WriteFile(certPath, certBytes, 0600); err != nil {
-		return "", "", err
-	}
-
-	if err := os.WriteFile(keyPath, keyBytes, 0600); err != nil {
-		return "", "", err
-	}
-
-	return certPath, keyPath, nil
-}
diff --git a/backend/log.go b/backend/log.go
index 1a7b63e..241243d 100644
--- a/backend/log.go
+++ b/backend/log.go
@@ -5,17 +5,22 @@ package main
 import (
 	"fmt"
 	"io"
+	"log"
 	"net/http"
 	"os"
 	"path/filepath"
+	"runtime/debug"
 	"strings"
 	"sync"
 	"time"
 )
 
 var (
-	appLogMu   sync.Mutex
-	appLogFile *os.File
+	appLogMu                 sync.Mutex
+	appLogFile               *os.File
+	appConsoleOut            *os.File
+	appStdStreamsRedirected  bool
+	appDiagnosticsConfigured bool
 )
 
 func appLogPath() string {
@@ -59,6 +64,7 @@ func initAppLog() {
 	}
 
 	appLogFile = f
+	configureAppDiagnosticsLocked()
 
 	_, _ = fmt.Fprintf(
 		appLogFile,
@@ -69,6 +75,26 @@ func initAppLog() {
 	_ = appLogFile.Sync()
 }
 
+func configureAppDiagnosticsLocked() {
+	if appLogFile == nil || appDiagnosticsConfigured {
+		return
+	}
+
+	log.SetOutput(appLogFile)
+	log.SetFlags(log.LstdFlags | log.Lmicroseconds | log.Lshortfile)
+	debug.SetTraceback("all")
+
+	appConsoleOut = os.Stdout
+
+	if err := redirectProcessStdStreamsToFile(appLogFile); err != nil {
+		_, _ = fmt.Fprintf(appLogFile, "⚠️ stdout/stderr konnte nicht auf recorder.log umgeleitet werden: %v\n", err)
+	} else {
+		appStdStreamsRedirected = true
+	}
+
+	appDiagnosticsConfigured = true
+}
+
 func closeAppLog() {
 	appLogMu.Lock()
 	defer appLogMu.Unlock()
@@ -113,7 +139,13 @@ func appLogWriteLine(line string) {
 	appLogMu.Lock()
 	defer appLogMu.Unlock()
 
-	fmt.Print(out)
+	if appStdStreamsRedirected {
+		if appConsoleOut != nil && appConsoleOut != appLogFile {
+			_, _ = appConsoleOut.WriteString(out)
+		}
+	} else {
+		fmt.Print(out)
+	}
 
 	if appLogFile != nil {
 		_, _ = appLogFile.WriteString(out)
@@ -129,6 +161,44 @@ func appLogf(format string, args ...any) {
 	appLogWriteLine(fmt.Sprintf(format, args...))
 }
 
+func appLogMultiline(prefix string, text string) {
+	text = strings.TrimRight(text, "\r\n")
+	if text == "" {
+		return
+	}
+
+	for _, line := range strings.Split(text, "\n") {
+		appLogWriteLine(prefix + strings.TrimRight(line, "\r"))
+	}
+}
+
+func appLogPanic(scope string, recovered any) {
+	scope = strings.TrimSpace(scope)
+	if scope == "" {
+		scope = "unbekannt"
+	}
+
+	appLogln("❌ PANIC in "+scope+":", recovered)
+	appLogln("Stacktrace:")
+	appLogMultiline("  ", string(debug.Stack()))
+}
+
+func appRecoverPanic(scope string) bool {
+	if recovered := recover(); recovered != nil {
+		appLogPanic(scope, recovered)
+		return true
+	}
+
+	return false
+}
+
+func appGo(scope string, fn func()) {
+	go func() {
+		defer appRecoverPanic(scope)
+		fn()
+	}()
+}
+
 // appErrorLogSuppressed unterdrückt das automatische ❌-Logging für bekannte,
 // erwartbare und sehr häufige Fehler (z.B. abgelaufene HLS-Edge-URLs während
 // eines Stream-Reconnects). Der Fehler wird weiterhin zurückgegeben, damit die
diff --git a/backend/log_redirect_unix.go b/backend/log_redirect_unix.go
new file mode 100644
index 0000000..d523d95
--- /dev/null
+++ b/backend/log_redirect_unix.go
@@ -0,0 +1,26 @@
+//go:build !windows
+
+package main
+
+import (
+	"os"
+	"syscall"
+)
+
+func redirectProcessStdStreamsToFile(f *os.File) error {
+	if f == nil {
+		return nil
+	}
+
+	fd := int(f.Fd())
+	if err := syscall.Dup2(fd, int(os.Stdout.Fd())); err != nil {
+		return err
+	}
+	if err := syscall.Dup2(fd, int(os.Stderr.Fd())); err != nil {
+		return err
+	}
+
+	os.Stdout = f
+	os.Stderr = f
+	return nil
+}
diff --git a/backend/log_redirect_windows.go b/backend/log_redirect_windows.go
new file mode 100644
index 0000000..aadde25
--- /dev/null
+++ b/backend/log_redirect_windows.go
@@ -0,0 +1,27 @@
+//go:build windows
+
+package main
+
+import (
+	"os"
+
+	"golang.org/x/sys/windows"
+)
+
+func redirectProcessStdStreamsToFile(f *os.File) error {
+	if f == nil {
+		return nil
+	}
+
+	handle := windows.Handle(f.Fd())
+	if err := windows.SetStdHandle(windows.STD_OUTPUT_HANDLE, handle); err != nil {
+		return err
+	}
+	if err := windows.SetStdHandle(windows.STD_ERROR_HANDLE, handle); err != nil {
+		return err
+	}
+
+	os.Stdout = f
+	os.Stderr = f
+	return nil
+}
diff --git a/backend/recorder-cert.pem b/backend/recorder-cert.pem
deleted file mode 100644
index 33c3442..0000000
--- a/backend/recorder-cert.pem
+++ /dev/null
@@ -1,26 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIEbjCCAtagAwIBAgIRAKGvq9b44yCGC32q8PwkueowDQYJKoZIhvcNAQELBQAw
-gYsxHjAcBgNVBAoTFW1rY2VydCBkZXZlbG9wbWVudCBDQTEwMC4GA1UECwwnVEVH
-RFNTRFxSb3RoZXJATDE0UEJCSzk1MTAwMDA2IChSb3RoZXIpMTcwNQYDVQQDDC5t
-a2NlcnQgVEVHRFNTRFxSb3RoZXJATDE0UEJCSzk1MTAwMDA2IChSb3RoZXIpMB4X
-DTI2MDUwODEwMDQzN1oXDTI4MDgwODEwMDQzN1owWzEnMCUGA1UEChMebWtjZXJ0
-IGRldmVsb3BtZW50IGNlcnRpZmljYXRlMTAwLgYDVQQLDCdURUdEU1NEXFJvdGhl
-ckBMMTRQQkJLOTUxMDAwMDYgKFJvdGhlcikwggEiMA0GCSqGSIb3DQEBAQUAA4IB
-DwAwggEKAoIBAQDDghqU3igC3sNP2zAJTZbvZcT1xxjUgk3oA2j0WwNPO+xhCH4K
-mJ6enU5zrGWI4+T0IHfbo737rvgk6XfTDSvzB9Uags8egBUGxbr9eMBya0hmnYGs
-zIQGJeI4TIeQ7sa7krCpMB/e1YxR1qYFf1C8oSt43dJCdJP4Ev//BaR7rrFt3D3N
-CC2OgxVYSh/hR9XNIIEPMoioQIYhle41mQWjyPFt16Fjg9sWrrnHSz7M4cgVVSot
-+aBlRjbxgOarLyST3XdtjAfC6CqxnzprX1LfznuULjatoS+pFDBDoy2B13xwa9Br
-f+Xy3CswmSO+AzNomWfbeBkJnl6xb3Tb1urrAgMBAAGjfDB6MA4GA1UdDwEB/wQE
-AwIFoDATBgNVHSUEDDAKBggrBgEFBQcDATAfBgNVHSMEGDAWgBR0Zph7hFKq4GpE
-XO0y3U+T0iFoQDAyBgNVHREEKzApgglsb2NhbGhvc3SHBH8AAAGHEAAAAAAAAAAA
-AAAAAAAAAAGHBAoAARkwDQYJKoZIhvcNAQELBQADggGBAJShhgQS+9cwuVOJUIW+
-uy9t1ZAjR9qTd31kHdK1vu294GiavrG8RD+92BRujG4Fq1ambvqcu9sUaC8+0HAP
-cQvdmnbTxG0ZHkGP7VVj3Poee0jpsVAVtV3aVwKxyO/E7Mv/nEKTqNfnECbEuiqC
-tOJ8mI3E9tf2/ljzq2PqvfIPFBBtUT2lihNAFXM/06Nzoa1NPdfYd58N+VBFSOSq
-zEM4fmpcqMThZGKGBoWmHwTE5Mw6mZFLyxHJpOFu5wNzyPJGes5o/F0ot5n+ZGah
-GbYaGmhEedOxC3/WXRtexJmZ0jrB8Hkx+c/4h6+0HKU/PelrFJS+c2d6h8YGXyhv
-pUsfyyoQzx7rSgyLfJqXK+52ZtnWNc0yVVMyKJwjvhv4mcP9l/q3UGR/i7xkD5Pc
-2bLgM+wc8nKI7Yd/xejLpQDC0b/P1XibT1T3GRjiC/eu64G/uFOF+m3P5XvmF8JO
-0cj8fXwUCq+TVD+22rFmtT+2VYkf8RUsC48Ou+PHccmDyw==
------END CERTIFICATE-----
diff --git a/backend/recorder-key.pem b/backend/recorder-key.pem
deleted file mode 100644
index 67692b1..0000000
--- a/backend/recorder-key.pem
+++ /dev/null
@@ -1,28 +0,0 @@
------BEGIN PRIVATE KEY-----
-MIIEvwIBADANBgkqhkiG9w0BAQEFAASCBKkwggSlAgEAAoIBAQDDghqU3igC3sNP
-2zAJTZbvZcT1xxjUgk3oA2j0WwNPO+xhCH4KmJ6enU5zrGWI4+T0IHfbo737rvgk
-6XfTDSvzB9Uags8egBUGxbr9eMBya0hmnYGszIQGJeI4TIeQ7sa7krCpMB/e1YxR
-1qYFf1C8oSt43dJCdJP4Ev//BaR7rrFt3D3NCC2OgxVYSh/hR9XNIIEPMoioQIYh
-le41mQWjyPFt16Fjg9sWrrnHSz7M4cgVVSot+aBlRjbxgOarLyST3XdtjAfC6Cqx
-nzprX1LfznuULjatoS+pFDBDoy2B13xwa9Brf+Xy3CswmSO+AzNomWfbeBkJnl6x
-b3Tb1urrAgMBAAECggEBAI31EBv72w2KdkKroot+vROCz6quMAdNvgezQif7VcHY
-fuBN7EcBXltJWUeAbBEjeIESejUPBcmT2DXlF841CC5lB4VCaeV5lsreE9IsNYBf
-CakIwLmZnltgcovydZT063QTJRcUDHAems5pjw76zMLKO+h9GEiMoUxFb3/atv3e
-K5HE+uUd6JcPU0q91S6TxqvS9gH30OOkwH6Kl4tzWauQAKg/sVzYafbyTAuEpiMO
-jLLLAn/sOmiL4knnRVu1FK4aZSH+t9BN9YuwfucXFn9jFgPtIJ0bF1GuqnwIeDI5
-BTNanHfaZRHD0+FbS0KbhARIFgDveoGrdoEtou0eDOECgYEA5dJqUvk96f7zCrxD
-eSuUl1MvOjydY3GacfjevZoTxJDqh4Wt2wgLYJc4XB7tI02ci7NncecG8qPfqWq7
-aFjQAGAYdR+XvE7R2m3OFK9WbRX4cH6b+l7mSq0eOvcAAajn4RuNr/il+7Opw7zX
-eKUB/pnW36B+ethdr5l+kDUQb8MCgYEA2ccanIT2QAxJb5j0F287NGhaTPuWfxcX
-2T53I2fIwMiell0YXjwsKwKpckubRB2f5X4b9QJifUTmtxHky/Tx4H9OVhCaxumw
-edol5YNzZaP/Tx8m2mqpyN2WPbezIFeA+GNcmDAxEo/NT2B64OVCHWKosndvb+Yk
-GFmVb+g9zbkCgYEA1YFJLZRHJJ+pgour02HdRUgOU/gD72KWrNMbeuEtBCvs9cIG
-5bjveOiDf3FrtKRhjpc4vuR12+zJ2EZDnIkFk5OypPyYpmRDKL1h+m15yRXkG/5D
-QbHwF+gEcZsN8nzMDqDeXGCPMuqSCDnjoz0IQVMB//bGCbIANyZOIgJqJqkCgYEA
-vHc+ZG383fjEJLvtoco1JmmYnD6uQ1Ys4WjZmd5bMdtswxvV1tekMaSgF7WurQgm
-NGkqsKJbsaVLNOtbYdac7He/x2OfTr02aH2Nhk54M2H1tPd0nFjqjlaVitvLPRX9
-GviCTYKHNVUVjLgmHzLIQL382FXcLq6wVhJQ7QPDWKECgYA6ZmdB8waN2SFOJRnj
-5zWTgdImicl4yCu8PaEyloO9whYSdYH8zU3K+FKaowXGNInp3BGCmP9TUwoG8Iwx
-Ug5d55P2FgwnhCi59Y6dMXih1p94BuQ0vcWPBqztofl7lZbBEnjwzKVycFvcyNFX
-QFb/UA4/CfQli9ciDtlqzZt8SA==
------END PRIVATE KEY-----
diff --git a/backend/server.go b/backend/server.go
index 2a35e99..344d17b 100644
--- a/backend/server.go
+++ b/backend/server.go
@@ -22,19 +22,6 @@ import (
 	"github.com/joho/godotenv"
 )
 
-var embeddedTLSOnce sync.Once
-var embeddedTLSCertPath string
-var embeddedTLSKeyPath string
-var embeddedTLSErr error
-
-func embeddedTLSPathsCached() (string, string, error) {
-	embeddedTLSOnce.Do(func() {
-		embeddedTLSCertPath, embeddedTLSKeyPath, embeddedTLSErr = embeddedTLSFilesDir()
-	})
-
-	return embeddedTLSCertPath, embeddedTLSKeyPath, embeddedTLSErr
-}
-
 func escapePowerShell(s string) string {
 	return strings.ReplaceAll(s, "'", "''")
 }
@@ -654,7 +641,7 @@ func startAIServer(ctx context.Context) (*aiServerProcess, error) {
 		done: make(chan struct{}),
 	}
 
-	go func() {
+	appGo("ai-server-wait", func() {
 		err := cmd.Wait()
 
 		if err != nil && ctx.Err() == nil && !proc.isStopping() {
@@ -664,7 +651,7 @@ func startAIServer(ctx context.Context) (*aiServerProcess, error) {
 		}
 
 		close(proc.done)
-	}()
+	})
 
 	if err := waitForAIServer(ctx, aiServerURL(), 120*time.Second); err != nil {
 		appLogln("⚠️ AI Server noch nicht bereit:", err)
@@ -820,7 +807,7 @@ func startTrainingBestModelWatcher(ctx context.Context, trainingRoot string) {
 
 			lastRestart = time.Now()
 			appLogln("🔄 Training-Modell geändert:", strings.Join(changedPaths, " | "))
-			go restartAIServer()
+			appGo("ai-server-restart", restartAIServer)
 		}
 	}
 }
@@ -961,12 +948,15 @@ func tlsCertFile() string {
 		return resolveMaybeRelativeToExe(raw)
 	}
 
-	certPath, _, err := embeddedTLSPathsCached()
+	certPath, _, err := localTLSPathsCached()
 	if err == nil && certPath != "" {
 		return certPath
 	}
+	if err != nil {
+		appLogln("⚠️ dynamisches TLS-Zertifikat konnte nicht erstellt werden:", err)
+	}
 
-	return resolveMaybeRelativeToExe("recorder-cert.pem")
+	return ""
 }
 
 func tlsKeyFile() string {
@@ -975,12 +965,16 @@ func tlsKeyFile() string {
 		return resolveMaybeRelativeToExe(raw)
 	}
 
-	_, keyPath, err := embeddedTLSPathsCached()
+	_, keyPath, err := localTLSPathsCached()
 	if err == nil && keyPath != "" {
 		return keyPath
 	}
 
-	return resolveMaybeRelativeToExe("recorder-key.pem")
+	if err != nil {
+		appLogln("⚠️ dynamischer TLS-Key konnte nicht erstellt werden:", err)
+	}
+
+	return ""
 }
 
 func publicAppURL() string {
@@ -1030,7 +1024,13 @@ func publicAppURLs() []string {
 func main() {
 	clearAppLog()
 	initAppLog()
-	defer closeAppLog()
+	defer func() {
+		panicked := appRecoverPanic("main")
+		closeAppLog()
+		if panicked {
+			os.Exit(2)
+		}
+	}()
 
 	loadAppEnv()
 
@@ -1055,7 +1055,7 @@ func main() {
 			"Die Anwendung wird bereits ausgeführt.",
 		)
 		appLogln("⚠️ Die App läuft bereits oder Port " + appPort() + " ist bereits belegt.")
-		os.Exit(0)
+		return
 	}
 	defer appLn.Close()
 
@@ -1071,7 +1071,7 @@ func main() {
 
 	startPostworkLeftoverScanOnStartup()
 
-	go startGeneratedGarbageCollector()
+	appGo("generated-garbage-collector", startGeneratedGarbageCollector)
 
 	// Altes NSFW-ONNX nicht mehr hart initialisieren.
 	// Das neue Training-/YOLO-Modell wird über trainingPredictFrame genutzt.
@@ -1089,7 +1089,7 @@ func main() {
 	if err != nil {
 		appLogln("❌ auth init:", err)
 		closeNSFW()
-		os.Exit(1)
+		return
 	}
 
 	store := registerRoutes(mux, auth)
@@ -1100,14 +1100,14 @@ func main() {
 	}
 
 	// Hintergrund-Worker
-	go startDiskSpaceGuard()
-	go startChaturbateOnlinePoller(store)
-	go startChaturbateAutoStartWorker(store)
-	go startMyFreeCamsAutoStartWorker(store)
+	appGo("disk-space-guard", startDiskSpaceGuard)
+	appGo("chaturbate-online-poller", func() { startChaturbateOnlinePoller(store) })
+	appGo("chaturbate-autostart-worker", func() { startChaturbateAutoStartWorker(store) })
+	appGo("myfreecams-autostart-worker", func() { startMyFreeCamsAutoStartWorker(store) })
 
 	// optional: Bootstrap nur im Hintergrund
 	if getSettings().UseChaturbateAPI {
-		go func() {
+		appGo("chaturbate-api-bootstrap", func() {
 			ctx, cancel := context.WithTimeout(context.Background(), 20*time.Second)
 			defer cancel()
 
@@ -1116,7 +1116,7 @@ func main() {
 			} else {
 				appLogln("✅ Chaturbate API geladen")
 			}
-		}()
+		})
 	}
 
 	if _, err := ensureCoversDir(); err != nil {
@@ -1164,14 +1164,14 @@ func main() {
 	stopSig := make(chan os.Signal, 1)
 	signal.Notify(stopSig, os.Interrupt, syscall.SIGTERM)
 
-	go func() {
+	appGo("shutdown-signal-listener", func() {
 		<-stopSig
 		shutdown()
-	}()
+	})
 
 	serverErrCh := make(chan error, 1)
 
-	go func() {
+	appGo("http-server", func() {
 		var err error
 
 		if httpsEnabled() {
@@ -1186,9 +1186,9 @@ func main() {
 		}
 
 		serverErrCh <- nil
-	}()
+	})
 
-	go func() {
+	appGo("ai-server-start", func() {
 		aiProc, err := startAIServer(appCtx)
 		if err != nil {
 			appLogln("⚠️ AI Server konnte nicht gestartet werden:", err)
@@ -1205,23 +1205,25 @@ func main() {
 		watchedTrainingRoot := aiServerRoot
 		aiServerMu.Unlock()
 
-		go startTrainingBestModelWatcher(appCtx, watchedTrainingRoot)
-	}()
+		appGo("training-best-model-watcher", func() {
+			startTrainingBestModelWatcher(appCtx, watchedTrainingRoot)
+		})
+	})
 
-	go func() {
+	appGo("startup-notification", func() {
 		_ = showAppNotification(
 			"Recorder gestartet",
 			buildStartupNotificationMessage(),
 		)
-	}()
+	})
 
-	go func() {
+	appGo("http-server-error-listener", func() {
 		err := <-serverErrCh
 		if err != nil {
 			appLogln("❌ HTTP-Server Fehler:", err)
 			shutdown()
 		}
-	}()
+	})
 
 	runTray(appCtx, shutdown, buildTrayStats)
 	shutdown()
diff --git a/backend/tls_dynamic.go b/backend/tls_dynamic.go
new file mode 100644
index 0000000..2ece580
--- /dev/null
+++ b/backend/tls_dynamic.go
@@ -0,0 +1,237 @@
+package main
+
+import (
+	"crypto/ecdsa"
+	"crypto/elliptic"
+	cryptoRand "crypto/rand"
+	"crypto/x509"
+	"crypto/x509/pkix"
+	"encoding/pem"
+	"fmt"
+	"math/big"
+	"net"
+	"net/url"
+	"os"
+	"path/filepath"
+	"sort"
+	"strings"
+	"sync"
+	"time"
+)
+
+var (
+	localTLSOnce     sync.Once
+	localTLSCertPath string
+	localTLSKeyPath  string
+	localTLSErr      error
+)
+
+func localTLSPathsCached() (string, string, error) {
+	localTLSOnce.Do(func() {
+		localTLSCertPath, localTLSKeyPath, localTLSErr = ensureLocalTLSCertificate()
+	})
+
+	return localTLSCertPath, localTLSKeyPath, localTLSErr
+}
+
+func localTLSDir() (string, error) {
+	if dir, err := os.UserConfigDir(); err == nil && strings.TrimSpace(dir) != "" {
+		return filepath.Join(dir, "nsfwapp", "tls"), nil
+	}
+
+	home, err := os.UserHomeDir()
+	if err != nil || strings.TrimSpace(home) == "" {
+		return "", fmt.Errorf("user config dir konnte nicht ermittelt werden")
+	}
+
+	return filepath.Join(home, ".config", "nsfwapp", "tls"), nil
+}
+
+func localTLSHosts() []string {
+	seen := map[string]bool{}
+	out := []string{}
+
+	add := func(host string) {
+		host = normalizeOriginHost(host)
+		if host == "" || seen[host] {
+			return
+		}
+		seen[host] = true
+		out = append(out, host)
+	}
+
+	for _, origin := range configuredPublicAppOrigins() {
+		u, err := url.Parse(strings.TrimSpace(origin))
+		if err == nil {
+			add(u.Hostname())
+		}
+	}
+
+	for _, host := range localAppHostCandidates() {
+		add(host)
+	}
+
+	add("localhost")
+	add("127.0.0.1")
+	add("::1")
+
+	sort.Strings(out)
+	return out
+}
+
+func tlsCertificateCoversHosts(certPath string, hosts []string) bool {
+	cert, err := readLeafCertificate(certPath)
+	if err != nil {
+		return false
+	}
+
+	now := time.Now()
+	if now.Before(cert.NotBefore) || now.After(cert.NotAfter.Add(-30*24*time.Hour)) {
+		return false
+	}
+
+	for _, host := range hosts {
+		host = normalizeOriginHost(host)
+		if host == "" {
+			continue
+		}
+		if err := cert.VerifyHostname(host); err != nil {
+			return false
+		}
+	}
+
+	return true
+}
+
+func readLeafCertificate(certPath string) (*x509.Certificate, error) {
+	b, err := os.ReadFile(certPath)
+	if err != nil {
+		return nil, err
+	}
+
+	block, _ := pem.Decode(b)
+	if block == nil || block.Type != "CERTIFICATE" {
+		return nil, fmt.Errorf("keine PEM-Zertifikatsdaten")
+	}
+
+	return x509.ParseCertificate(block.Bytes)
+}
+
+func ensureLocalTLSCertificate() (string, string, error) {
+	dir, err := localTLSDir()
+	if err != nil {
+		return "", "", err
+	}
+	if err := os.MkdirAll(dir, 0o700); err != nil {
+		return "", "", err
+	}
+
+	certPath := filepath.Join(dir, "recorder-cert.pem")
+	keyPath := filepath.Join(dir, "recorder-key.pem")
+	hosts := localTLSHosts()
+
+	if fileExistsNonEmpty(certPath) &&
+		fileExistsNonEmpty(keyPath) &&
+		tlsCertificateCoversHosts(certPath, hosts) {
+		appLogln("🔐 TLS-Zertifikat aktiv:", certPath)
+		return certPath, keyPath, nil
+	}
+
+	if err := generateLocalTLSCertificate(certPath, keyPath, hosts); err != nil {
+		return "", "", err
+	}
+
+	appLogln("🔐 TLS-Zertifikat neu erstellt:", certPath)
+	appLogln("🔐 TLS-Namen:", strings.Join(hosts, ", "))
+	return certPath, keyPath, nil
+}
+
+func generateLocalTLSCertificate(certPath string, keyPath string, hosts []string) error {
+	key, err := ecdsa.GenerateKey(elliptic.P256(), cryptoRand.Reader)
+	if err != nil {
+		return err
+	}
+
+	serialLimit := new(big.Int).Lsh(big.NewInt(1), 128)
+	serial, err := cryptoRand.Int(cryptoRand.Reader, serialLimit)
+	if err != nil {
+		return err
+	}
+
+	notBefore := time.Now().Add(-1 * time.Hour)
+	notAfter := notBefore.Add(397 * 24 * time.Hour)
+
+	tpl := &x509.Certificate{
+		SerialNumber: serial,
+		Subject: pkix.Name{
+			CommonName:   "nsfwapp local",
+			Organization: []string{"nsfwapp"},
+		},
+		NotBefore:             notBefore,
+		NotAfter:              notAfter,
+		KeyUsage:              x509.KeyUsageDigitalSignature | x509.KeyUsageKeyEncipherment,
+		ExtKeyUsage:           []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},
+		BasicConstraintsValid: true,
+	}
+
+	seenDNS := map[string]bool{}
+	seenIP := map[string]bool{}
+	for _, host := range hosts {
+		host = normalizeOriginHost(host)
+		if host == "" {
+			continue
+		}
+
+		if ip := net.ParseIP(host); ip != nil {
+			key := ip.String()
+			if !seenIP[key] {
+				seenIP[key] = true
+				tpl.IPAddresses = append(tpl.IPAddresses, ip)
+			}
+			continue
+		}
+
+		if !seenDNS[host] {
+			seenDNS[host] = true
+			tpl.DNSNames = append(tpl.DNSNames, host)
+		}
+	}
+
+	if len(tpl.DNSNames) == 0 && len(tpl.IPAddresses) == 0 {
+		tpl.DNSNames = []string{"localhost"}
+	}
+
+	certDER, err := x509.CreateCertificate(
+		cryptoRand.Reader,
+		tpl,
+		tpl,
+		&key.PublicKey,
+		key,
+	)
+	if err != nil {
+		return err
+	}
+
+	keyDER, err := x509.MarshalECPrivateKey(key)
+	if err != nil {
+		return err
+	}
+
+	certPEM := pem.EncodeToMemory(&pem.Block{
+		Type:  "CERTIFICATE",
+		Bytes: certDER,
+	})
+	keyPEM := pem.EncodeToMemory(&pem.Block{
+		Type:  "EC PRIVATE KEY",
+		Bytes: keyDER,
+	})
+
+	if err := os.WriteFile(certPath, certPEM, 0o600); err != nil {
+		return err
+	}
+	if err := os.WriteFile(keyPath, keyPEM, 0o600); err != nil {
+		return err
+	}
+
+	return nil
+}
diff --git a/cert/mkcert-v1.4.4-windows-amd64.exe b/cert/mkcert-v1.4.4-windows-amd64.exe
deleted file mode 100644
index c9cde49..0000000
Binary files a/cert/mkcert-v1.4.4-windows-amd64.exe and /dev/null differ
diff --git a/cert/recorder-cert.pem b/cert/recorder-cert.pem
deleted file mode 100644
index 33c3442..0000000
--- a/cert/recorder-cert.pem
+++ /dev/null
@@ -1,26 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIEbjCCAtagAwIBAgIRAKGvq9b44yCGC32q8PwkueowDQYJKoZIhvcNAQELBQAw
-gYsxHjAcBgNVBAoTFW1rY2VydCBkZXZlbG9wbWVudCBDQTEwMC4GA1UECwwnVEVH
-RFNTRFxSb3RoZXJATDE0UEJCSzk1MTAwMDA2IChSb3RoZXIpMTcwNQYDVQQDDC5t
-a2NlcnQgVEVHRFNTRFxSb3RoZXJATDE0UEJCSzk1MTAwMDA2IChSb3RoZXIpMB4X
-DTI2MDUwODEwMDQzN1oXDTI4MDgwODEwMDQzN1owWzEnMCUGA1UEChMebWtjZXJ0
-IGRldmVsb3BtZW50IGNlcnRpZmljYXRlMTAwLgYDVQQLDCdURUdEU1NEXFJvdGhl
-ckBMMTRQQkJLOTUxMDAwMDYgKFJvdGhlcikwggEiMA0GCSqGSIb3DQEBAQUAA4IB
-DwAwggEKAoIBAQDDghqU3igC3sNP2zAJTZbvZcT1xxjUgk3oA2j0WwNPO+xhCH4K
-mJ6enU5zrGWI4+T0IHfbo737rvgk6XfTDSvzB9Uags8egBUGxbr9eMBya0hmnYGs
-zIQGJeI4TIeQ7sa7krCpMB/e1YxR1qYFf1C8oSt43dJCdJP4Ev//BaR7rrFt3D3N
-CC2OgxVYSh/hR9XNIIEPMoioQIYhle41mQWjyPFt16Fjg9sWrrnHSz7M4cgVVSot
-+aBlRjbxgOarLyST3XdtjAfC6CqxnzprX1LfznuULjatoS+pFDBDoy2B13xwa9Br
-f+Xy3CswmSO+AzNomWfbeBkJnl6xb3Tb1urrAgMBAAGjfDB6MA4GA1UdDwEB/wQE
-AwIFoDATBgNVHSUEDDAKBggrBgEFBQcDATAfBgNVHSMEGDAWgBR0Zph7hFKq4GpE
-XO0y3U+T0iFoQDAyBgNVHREEKzApgglsb2NhbGhvc3SHBH8AAAGHEAAAAAAAAAAA
-AAAAAAAAAAGHBAoAARkwDQYJKoZIhvcNAQELBQADggGBAJShhgQS+9cwuVOJUIW+
-uy9t1ZAjR9qTd31kHdK1vu294GiavrG8RD+92BRujG4Fq1ambvqcu9sUaC8+0HAP
-cQvdmnbTxG0ZHkGP7VVj3Poee0jpsVAVtV3aVwKxyO/E7Mv/nEKTqNfnECbEuiqC
-tOJ8mI3E9tf2/ljzq2PqvfIPFBBtUT2lihNAFXM/06Nzoa1NPdfYd58N+VBFSOSq
-zEM4fmpcqMThZGKGBoWmHwTE5Mw6mZFLyxHJpOFu5wNzyPJGes5o/F0ot5n+ZGah
-GbYaGmhEedOxC3/WXRtexJmZ0jrB8Hkx+c/4h6+0HKU/PelrFJS+c2d6h8YGXyhv
-pUsfyyoQzx7rSgyLfJqXK+52ZtnWNc0yVVMyKJwjvhv4mcP9l/q3UGR/i7xkD5Pc
-2bLgM+wc8nKI7Yd/xejLpQDC0b/P1XibT1T3GRjiC/eu64G/uFOF+m3P5XvmF8JO
-0cj8fXwUCq+TVD+22rFmtT+2VYkf8RUsC48Ou+PHccmDyw==
------END CERTIFICATE-----
diff --git a/cert/recorder-key.pem b/cert/recorder-key.pem
deleted file mode 100644
index 67692b1..0000000
--- a/cert/recorder-key.pem
+++ /dev/null
@@ -1,28 +0,0 @@
------BEGIN PRIVATE KEY-----
-MIIEvwIBADANBgkqhkiG9w0BAQEFAASCBKkwggSlAgEAAoIBAQDDghqU3igC3sNP
-2zAJTZbvZcT1xxjUgk3oA2j0WwNPO+xhCH4KmJ6enU5zrGWI4+T0IHfbo737rvgk
-6XfTDSvzB9Uags8egBUGxbr9eMBya0hmnYGszIQGJeI4TIeQ7sa7krCpMB/e1YxR
-1qYFf1C8oSt43dJCdJP4Ev//BaR7rrFt3D3NCC2OgxVYSh/hR9XNIIEPMoioQIYh
-le41mQWjyPFt16Fjg9sWrrnHSz7M4cgVVSot+aBlRjbxgOarLyST3XdtjAfC6Cqx
-nzprX1LfznuULjatoS+pFDBDoy2B13xwa9Brf+Xy3CswmSO+AzNomWfbeBkJnl6x
-b3Tb1urrAgMBAAECggEBAI31EBv72w2KdkKroot+vROCz6quMAdNvgezQif7VcHY
-fuBN7EcBXltJWUeAbBEjeIESejUPBcmT2DXlF841CC5lB4VCaeV5lsreE9IsNYBf
-CakIwLmZnltgcovydZT063QTJRcUDHAems5pjw76zMLKO+h9GEiMoUxFb3/atv3e
-K5HE+uUd6JcPU0q91S6TxqvS9gH30OOkwH6Kl4tzWauQAKg/sVzYafbyTAuEpiMO
-jLLLAn/sOmiL4knnRVu1FK4aZSH+t9BN9YuwfucXFn9jFgPtIJ0bF1GuqnwIeDI5
-BTNanHfaZRHD0+FbS0KbhARIFgDveoGrdoEtou0eDOECgYEA5dJqUvk96f7zCrxD
-eSuUl1MvOjydY3GacfjevZoTxJDqh4Wt2wgLYJc4XB7tI02ci7NncecG8qPfqWq7
-aFjQAGAYdR+XvE7R2m3OFK9WbRX4cH6b+l7mSq0eOvcAAajn4RuNr/il+7Opw7zX
-eKUB/pnW36B+ethdr5l+kDUQb8MCgYEA2ccanIT2QAxJb5j0F287NGhaTPuWfxcX
-2T53I2fIwMiell0YXjwsKwKpckubRB2f5X4b9QJifUTmtxHky/Tx4H9OVhCaxumw
-edol5YNzZaP/Tx8m2mqpyN2WPbezIFeA+GNcmDAxEo/NT2B64OVCHWKosndvb+Yk
-GFmVb+g9zbkCgYEA1YFJLZRHJJ+pgour02HdRUgOU/gD72KWrNMbeuEtBCvs9cIG
-5bjveOiDf3FrtKRhjpc4vuR12+zJ2EZDnIkFk5OypPyYpmRDKL1h+m15yRXkG/5D
-QbHwF+gEcZsN8nzMDqDeXGCPMuqSCDnjoz0IQVMB//bGCbIANyZOIgJqJqkCgYEA
-vHc+ZG383fjEJLvtoco1JmmYnD6uQ1Ys4WjZmd5bMdtswxvV1tekMaSgF7WurQgm
-NGkqsKJbsaVLNOtbYdac7He/x2OfTr02aH2Nhk54M2H1tPd0nFjqjlaVitvLPRX9
-GviCTYKHNVUVjLgmHzLIQL382FXcLq6wVhJQ7QPDWKECgYA6ZmdB8waN2SFOJRnj
-5zWTgdImicl4yCu8PaEyloO9whYSdYH8zU3K+FKaowXGNInp3BGCmP9TUwoG8Iwx
-Ug5d55P2FgwnhCi59Y6dMXih1p94BuQ0vcWPBqztofl7lZbBEnjwzKVycFvcyNFX
-QFb/UA4/CfQli9ciDtlqzZt8SA==
------END PRIVATE KEY-----