diff --git a/connector/muffler.go b/connector/muffler.go
index 94869917..d1bd63e4 100644
--- a/connector/muffler.go
+++ b/connector/muffler.go
@@ -36,9 +36,7 @@ func (smp *muffler) ShouldSample(p sdktrace.SamplingParameters) sdktrace.Samplin
 	} else {
 		// Do not sample Prometheus requests to the metrics core microservice
 		// :8080/metrics.sys/collect or :8080/metrics.sys:443/collect
-		slash := strings.Index(p.Name, "/")
-		if slash >= 0 {
-			path := p.Name[slash+1:]
+		if _, path, ok := strings.Cut(p.Name, "/"); ok {
 			if path == "metrics.sys/collect" || path == "metrics.sys:443/collect" {
 				sample = false
 			}
diff --git a/coreservices/httpingress/service.go b/coreservices/httpingress/service.go
index efff1b39..a47c38c9 100644
--- a/coreservices/httpingress/service.go
+++ b/coreservices/httpingress/service.go
@@ -310,11 +310,13 @@ func (svc *Service) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		} else {
 			ww.Write([]byte(http.StatusText(statusCode) + " {" + span.TraceID() + "}"))
 		}
-		if statusCode < 500 {
-			svc.LogWarn(ctx, "Serving", log.Error(err), log.String("url", urlStr), log.Int("status", statusCode))
-		} else {
-			svc.LogError(ctx, "Serving", log.Error(err), log.String("url", urlStr), log.Int("status", statusCode))
+		logFunc := svc.LogError
+		if statusCode == http.StatusNotFound {
+			logFunc = svc.LogInfo
+		} else if statusCode < 500 {
+			logFunc = svc.LogWarn
 		}
+		logFunc(ctx, "Serving", log.Error(err), log.String("url", urlStr), log.Int("status", statusCode))
 
 		// OpenTelemetry: record the error, adding the request attributes
 		span.SetRequest(r)
diff --git a/coreservices/httpingress/version-gen.go b/coreservices/httpingress/version-gen.go
index 77a33367..936a20e2 100644
--- a/coreservices/httpingress/version-gen.go
+++ b/coreservices/httpingress/version-gen.go
@@ -9,12 +9,12 @@ Neither may be used, copied or distributed without the express written consent o
 
 package httpingress
 
-const Version = 220
-const SourceCodeSHA256 = "66cd6c86d9932dcf7ec3637fb2917dc5e6222ca476bad4aa243bc6d235430f3c"
-const Timestamp = "2024-06-01T13:28:32.885983Z"
+const Version = 221
+const SourceCodeSHA256 = "81f9ab4226eb0472c30a29a90e558725d70f60abfafca8a6b97d5f435738b6e7"
+const Timestamp = "2024-06-01T15:27:38.223416Z"
 
 /* {
-	"ver": 220,
-	"sha256": "66cd6c86d9932dcf7ec3637fb2917dc5e6222ca476bad4aa243bc6d235430f3c",
-	"ts": "2024-06-01T13:28:32.885983Z"
+	"ver": 221,
+	"sha256": "81f9ab4226eb0472c30a29a90e558725d70f60abfafca8a6b97d5f435738b6e7",
+	"ts": "2024-06-01T15:27:38.223416Z"
 } */
diff --git a/trc/span.go b/trc/span.go
index 453206ee..15038f83 100644
--- a/trc/span.go
+++ b/trc/span.go
@@ -27,18 +27,33 @@ var _ = Span(SpanImpl{}) // Ensure interface
 
 // Span represents an operation that is being traced.
 type Span interface {
+	// End completes the span.
+	// Updates to the span are not allowed after this method has been called.
 	End()
+	// SetError sets the status of the span to error.
 	SetError(err error)
+	// SetOK sets the status of the span to OK, with the indicated response status code.
 	SetOK(statusCode int)
+	// Log records a log event on the span.
 	Log(severity string, message string, fields ...log.Field)
+	// SetString tags the span during its creation.
 	SetString(k string, v string)
+	// SetStrings tags the span during its creation.
 	SetStrings(k string, v []string)
+	// SetBool tags the span during its creation.
 	SetBool(k string, v bool)
+	// SetInt tags the span during its creation.
 	SetInt(k string, v int)
+	// SetFloat tags the span during its creation.
 	SetFloat(k string, v float64)
+	// SetRequest tags the span with the request data.
+	// Warning: this has a large memory footprint.
 	SetRequest(r *http.Request)
+	// SetClientIP tags the span during its creation with the IP address and port number of the client.
 	SetClientIP(ip string)
+	// IsEmpty indicates if the span is not initialized.
 	IsEmpty() bool
+	// TraceID is an identifier that groups related spans together.
 	TraceID() string
 }
 
@@ -52,10 +67,8 @@ func NewSpan(ts trace.Span) Span {
 	return SpanImpl{Span: ts}
 }
 
-// End completes the Span. The Span is considered complete and ready to be
-// delivered through the rest of the telemetry pipeline after this method
-// is called. Therefore, updates to the Span are not allowed after this
-// method has been called.
+// End completes the span.
+// Updates to the span are not allowed after this method has been called.
 func (s SpanImpl) End() {
 	if s.Span == nil {
 		return
@@ -184,7 +197,8 @@ func (s SpanImpl) SetFloat(k string, v float64) {
 	s.Span.SetAttributes(attribute.Float64(k, v))
 }
 
-// SetRequest tags the span during its creation with the request data.
+// SetRequest tags the span with the request data.
+// Warning: this has a large memory footprint.
 func (s SpanImpl) SetRequest(r *http.Request) {
 	if s.Span == nil {
 		return