diff --git a/config/flags.go b/config/flags.go
index 0c62061..84b523f 100644
--- a/config/flags.go
+++ b/config/flags.go
@@ -52,7 +52,9 @@ func Identity[T any](in T) (T, error) {
 }
 
 func parseUint(val string) (uint, error) {
-	parsed, err := strconv.ParseUint(val, 10, 32)
+	const baseDecimal = 10
+	const int32BitSize = 32
+	parsed, err := strconv.ParseUint(val, baseDecimal, int32BitSize)
 	if err != nil {
 		return 0, err
 	}
diff --git a/config/server.go b/config/server.go
index e0025f2..dad5753 100644
--- a/config/server.go
+++ b/config/server.go
@@ -24,6 +24,7 @@ const (
 	urlSchemeRegex = `^(?P<scheme>\w+)://((?P<username>[\w-.]+)(:(?P<password>.*))?@)?(\{(?P<hosts>(.+:\d{1,5})(,(.+:\d{1,5}))*)}|(?P<host>.+:\d{1,5}))(?P<path>/.*$)?`
 )
 
+//nolint:goconst
 func (t ServerType) Scheme() string {
 	switch t {
 	case ServerTypeRedis:
diff --git a/main.go b/main.go
index 2221edd..34fcd87 100644
--- a/main.go
+++ b/main.go
@@ -5,6 +5,7 @@ import (
 	"log"
 	"net/http"
 	"os"
+	"time"
 
 	"go.uber.org/zap"
 	"go.uber.org/zap/zapcore"
@@ -56,7 +57,13 @@ func main() {
 		logger.Fatal("Failed to prepare server mux", zap.Error(err))
 	}
 
-	if err := http.ListenAndServe(":8080", mux); err != nil {
+	srv := http.Server{
+		Addr:              ":8080",
+		Handler:           mux,
+		ReadHeaderTimeout: 100 * time.Millisecond,
+	}
+
+	if err := srv.ListenAndServe(); err != nil {
 		if errors.Is(err, http.ErrServerClosed) {
 			return
 		}
diff --git a/protocols/http/checks.go b/protocols/http/checks.go
index aac6e68..2541aee 100644
--- a/protocols/http/checks.go
+++ b/protocols/http/checks.go
@@ -22,7 +22,6 @@ func Module() *check.Module {
 			return &GenericCheck{Method: http.MethodDelete}
 		})),
 	)
-
 	if err != nil {
 		panic(err)
 	}
diff --git a/protocols/http/get.go b/protocols/http/get.go
index f742f90..5fc8d32 100644
--- a/protocols/http/get.go
+++ b/protocols/http/get.go
@@ -37,7 +37,6 @@ func (g *GenericCheck) SetClient(client *http.Client) {
 }
 
 func (g *GenericCheck) Execute(ctx check.Context) error {
-	//TODO adopt
 	var body io.Reader
 	if len(g.Body) > 0 {
 		body = bytes.NewReader(g.Body)
diff --git a/protocols/redis/checks.go b/protocols/redis/checks.go
index 6191c70..519ed28 100644
--- a/protocols/redis/checks.go
+++ b/protocols/redis/checks.go
@@ -14,7 +14,6 @@ func Module() *check.Module {
 			return new(GetCheck)
 		})),
 	)
-
 	if err != nil {
 		panic(err)
 	}
diff --git a/protocols/sql/checks.go b/protocols/sql/checks.go
index 943b430..c554667 100644
--- a/protocols/sql/checks.go
+++ b/protocols/sql/checks.go
@@ -9,7 +9,6 @@ func Module() *check.Module {
 			return new(SelectCheck)
 		})),
 	)
-
 	if err != nil {
 		panic(err)
 	}
diff --git a/protocols/sql/checks_test.go b/protocols/sql/checks_test.go
index fd712a4..4a77da7 100644
--- a/protocols/sql/checks_test.go
+++ b/protocols/sql/checks_test.go
@@ -63,7 +63,7 @@ func TestChecks_Execute(t *testing.T) {
 					srvName, srv = PrepareMariaDBContainer(t)
 				case config.ServerTypePostgres:
 					srvName, srv = PreparePostgresContainer(t)
-				case config.ServerTypeRedis:
+				case config.ServerTypeRedis, config.ServerTypeUnspecified:
 					fallthrough
 				default:
 					t.Fatalf("unexpected server type: %s", st.Scheme())
diff --git a/protocols/sql/db.go b/protocols/sql/db.go
index eea34ef..60a797d 100644
--- a/protocols/sql/db.go
+++ b/protocols/sql/db.go
@@ -36,10 +36,9 @@ func DBForServer(srv *config.Server) (*sql.DB, error) {
 		}
 
 		return sql.Open(srv.Type.Driver(), dsns[0])
-	case config.ServerTypeRedis:
+	case config.ServerTypeRedis, config.ServerTypeUnspecified:
 		fallthrough
 	default:
 		return nil, fmt.Errorf("unmatched server type for SQL DB: %s", srv.Type.Scheme())
 	}
-
 }