diff --git a/internal/home/dns.go b/internal/home/dns.go
index 601de99d..25d869e8 100644
--- a/internal/home/dns.go
+++ b/internal/home/dns.go
@@ -533,7 +533,7 @@ func closeDNSServer() {
 
 	if Context.queryLog != nil {
 		// TODO(s.chzhen):  Pass context.
-		Context.queryLog.Close(context.TODO())
+		Context.queryLog.Shutdown(context.TODO())
 	}
 
 	log.Debug("all dns modules are closed")
diff --git a/internal/querylog/decode.go b/internal/querylog/decode.go
index 531bcf1c..e9531ed3 100644
--- a/internal/querylog/decode.go
+++ b/internal/querylog/decode.go
@@ -682,7 +682,7 @@ func (l *queryLog) resultDecHandler(
 	dec *json.Decoder,
 	ent *logEntry,
 ) (found bool) {
-	notFound := false
+	found = true
 	switch name {
 	case "ReverseHosts":
 		l.decodeResultReverseHosts(ctx, dec, ent)
@@ -693,10 +693,10 @@ func (l *queryLog) resultDecHandler(
 	case "DNSRewriteResult":
 		l.decodeResultDNSRewriteResult(ctx, dec, ent)
 	default:
-		notFound = true
+		found = false
 	}
 
-	return !notFound
+	return found
 }
 
 // decodeLogEntry decodes string str to logEntry ent.
diff --git a/internal/querylog/http.go b/internal/querylog/http.go
index fe5050d8..be4e92be 100644
--- a/internal/querylog/http.go
+++ b/internal/querylog/http.go
@@ -84,14 +84,15 @@ func (l *queryLog) handleQueryLog(w http.ResponseWriter, r *http.Request) {
 
 	var entries []*logEntry
 	var oldest time.Time
+	ctx := r.Context()
 	func() {
 		l.confMu.RLock()
 		defer l.confMu.RUnlock()
 
-		entries, oldest = l.search(r.Context(), params)
+		entries, oldest = l.search(ctx, params)
 	}()
 
-	resp := l.entriesToJSON(r.Context(), entries, oldest, l.anonymizer.Load())
+	resp := l.entriesToJSON(ctx, entries, oldest, l.anonymizer.Load())
 
 	aghhttp.WriteJSONResponseOK(w, r, resp)
 }
diff --git a/internal/querylog/qlog.go b/internal/querylog/qlog.go
index 2cb4deca..ca54bd3f 100644
--- a/internal/querylog/qlog.go
+++ b/internal/querylog/qlog.go
@@ -82,6 +82,10 @@ func NewClientProto(s string) (cp ClientProto, err error) {
 	}
 }
 
+// type check
+var _ QueryLog = (*queryLog)(nil)
+
+// Start implements the [QueryLog] interface for *queryLog.
 func (l *queryLog) Start(ctx context.Context) {
 	if l.conf.HTTPRegister != nil {
 		l.initWeb()
@@ -90,7 +94,8 @@ func (l *queryLog) Start(ctx context.Context) {
 	go l.periodicRotate(ctx)
 }
 
-func (l *queryLog) Close(ctx context.Context) {
+// Shutdown implements the [QueryLog] interface for *queryLog.
+func (l *queryLog) Shutdown(ctx context.Context) {
 	l.confMu.RLock()
 	defer l.confMu.RUnlock()
 
@@ -129,6 +134,7 @@ func validateIvl(ivl time.Duration) (err error) {
 	return nil
 }
 
+// WriteDiskConfig implements the [QueryLog] interface for *queryLog.
 func (l *queryLog) WriteDiskConfig(c *Config) {
 	l.confMu.RLock()
 	defer l.confMu.RUnlock()
diff --git a/internal/querylog/querylog.go b/internal/querylog/querylog.go
index 9c2c53cd..3968db70 100644
--- a/internal/querylog/querylog.go
+++ b/internal/querylog/querylog.go
@@ -17,17 +17,18 @@ import (
 	"github.com/miekg/dns"
 )
 
-// QueryLog - main interface
+// QueryLog is the query log interface for use by other packages.
 type QueryLog interface {
+	// Start starts the query log.
 	Start(ctx context.Context)
 
-	// Close query log object
-	Close(ctx context.Context)
+	// Shutdown stops the query log.
+	Shutdown(ctx context.Context)
 
-	// Add a log entry
+	// Add adds a log entry.
 	Add(params *AddParams)
 
-	// WriteDiskConfig - write configuration
+	// WriteDiskConfig writes the query log configuration to c.
 	WriteDiskConfig(c *Config)
 
 	// ShouldLog returns true if request for the host should be logged.
diff --git a/internal/querylog/querylogfile.go b/internal/querylog/querylogfile.go
index 57539669..84da97cf 100644
--- a/internal/querylog/querylogfile.go
+++ b/internal/querylog/querylogfile.go
@@ -18,6 +18,7 @@ import (
 // buffer.
 func (l *queryLog) flushLogBuffer(ctx context.Context) (err error) {
 	defer func() { err = errors.Annotate(err, "flushing log buffer: %w") }()
+
 	l.fileFlushLock.Lock()
 	defer l.fileFlushLock.Unlock()
 
diff --git a/internal/querylog/search.go b/internal/querylog/search.go
index adb9ec59..7e5dc3f6 100644
--- a/internal/querylog/search.go
+++ b/internal/querylog/search.go
@@ -346,7 +346,7 @@ func (l *queryLog) readNextEntry(
 		l.logger.ErrorContext(
 			ctx,
 			"enriching file record at time",
-			"at_time", e.Time,
+			"at", e.Time,
 			"client_ip", e.IP,
 			"client_id", e.ClientID,
 			slogutil.KeyError, err,
diff --git a/internal/querylog/search_test.go b/internal/querylog/search_test.go
index fb6cf5ce..304a4566 100644
--- a/internal/querylog/search_test.go
+++ b/internal/querylog/search_test.go
@@ -51,7 +51,7 @@ func TestQueryLog_Search_findClient(t *testing.T) {
 
 	ctx := testutil.ContextWithTimeout(t, testTimeout)
 	t.Cleanup(func() {
-		l.Close(ctx)
+		l.Shutdown(ctx)
 	})
 
 	q := &dns.Msg{