diff --git a/api/handler/acl.go b/api/handler/acl.go
index cd744e08..ff8324af 100644
--- a/api/handler/acl.go
+++ b/api/handler/acl.go
@@ -11,6 +11,7 @@ import (
 	"net/http"
 	"strings"
 
+	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
@@ -47,7 +48,9 @@ const (
 )
 
 func (h *handler) GetBucketACLHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.GetBucketACL")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	bktInfo, err := h.getBucketAndCheckOwner(r, reqInfo.BucketName)
@@ -127,7 +130,9 @@ func getTokenIssuerKey(box *accessbox.Box) (*keys.PublicKey, error) {
 }
 
 func (h *handler) PutBucketACLHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.PutBucketACL")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	bktInfo, err := h.getBucketAndCheckOwner(r, reqInfo.BucketName)
@@ -194,7 +199,9 @@ func (h *handler) putBucketACLAPEHandler(w http.ResponseWriter, r *http.Request,
 }
 
 func (h *handler) GetObjectACLHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.GetObjectACL")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	bktInfo, err := h.getBucketAndCheckOwner(r, reqInfo.BucketName)
@@ -216,7 +223,9 @@ func (h *handler) GetObjectACLHandler(w http.ResponseWriter, r *http.Request) {
 }
 
 func (h *handler) PutObjectACLHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.PutObjectACL")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	if _, err := h.getBucketAndCheckOwner(r, reqInfo.BucketName); err != nil {
@@ -228,7 +237,9 @@ func (h *handler) PutObjectACLHandler(w http.ResponseWriter, r *http.Request) {
 }
 
 func (h *handler) GetBucketPolicyStatusHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.GetBucketPolicyStatus")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	bktInfo, err := h.getBucketAndCheckOwner(r, reqInfo.BucketName)
@@ -271,7 +282,9 @@ func (h *handler) GetBucketPolicyStatusHandler(w http.ResponseWriter, r *http.Re
 }
 
 func (h *handler) GetBucketPolicyHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.GetBucketPolicy")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	bktInfo, err := h.getBucketAndCheckOwner(r, reqInfo.BucketName)
@@ -298,7 +311,9 @@ func (h *handler) GetBucketPolicyHandler(w http.ResponseWriter, r *http.Request)
 }
 
 func (h *handler) DeleteBucketPolicyHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.DeleteBucketPolicy")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	bktInfo, err := h.getBucketAndCheckOwner(r, reqInfo.BucketName)
@@ -328,7 +343,9 @@ func checkOwner(info *data.BucketInfo, owner string) error {
 }
 
 func (h *handler) PutBucketPolicyHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.PutBucketPolicy")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	bktInfo, err := h.getBucketAndCheckOwner(r, reqInfo.BucketName)
diff --git a/api/handler/attributes.go b/api/handler/attributes.go
index 4e4a9132..ea83a394 100644
--- a/api/handler/attributes.go
+++ b/api/handler/attributes.go
@@ -8,6 +8,7 @@ import (
 	"strconv"
 	"strings"
 
+	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
@@ -70,7 +71,9 @@ var validAttributes = map[string]struct{}{
 }
 
 func (h *handler) GetObjectAttributesHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.GetObjectAttributes")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	params, err := parseGetObjectAttributeArgs(r, h.reqLogger(ctx))
diff --git a/api/handler/bucket_list.go b/api/handler/bucket_list.go
index e060b676..efe3b469 100644
--- a/api/handler/bucket_list.go
+++ b/api/handler/bucket_list.go
@@ -5,6 +5,7 @@ import (
 	"strconv"
 	"time"
 
+	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/middleware"
@@ -14,7 +15,9 @@ const maxBucketList = 10000
 
 // ListBucketsHandler handles bucket listing requests.
 func (h *handler) ListBucketsHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.ListBuckets")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	params, err := parseListBucketParams(r)
diff --git a/api/handler/copy.go b/api/handler/copy.go
index 30f13704..7b2f2c59 100644
--- a/api/handler/copy.go
+++ b/api/handler/copy.go
@@ -6,6 +6,7 @@ import (
 	"regexp"
 	"time"
 
+	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/auth"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
@@ -40,18 +41,19 @@ func path2BucketObject(path string) (string, string, error) {
 }
 
 func (h *handler) CopyObjectHandler(w http.ResponseWriter, r *http.Request) {
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.CopyObject")
+	defer span.End()
+
 	var (
 		err       error
 		versionID string
 		metadata  map[string]string
 		tagSet    map[string]string
-
-		ctx     = r.Context()
-		reqInfo = middleware.GetReqInfo(ctx)
-
-		cannedACLStatus = aclHeadersStatus(r)
 	)
 
+	reqInfo := middleware.GetReqInfo(ctx)
+	cannedACLStatus := aclHeadersStatus(r)
+
 	src := r.Header.Get(api.AmzCopySource)
 	// Check https://docs.aws.amazon.com/AmazonS3/latest/dev/ObjectVersioning.html
 	// Regardless of whether you have enabled versioning, each object in your bucket
diff --git a/api/handler/cors.go b/api/handler/cors.go
index 7ba36242..ef7a2b5f 100644
--- a/api/handler/cors.go
+++ b/api/handler/cors.go
@@ -5,6 +5,7 @@ import (
 	"strconv"
 	"strings"
 
+	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer"
@@ -20,7 +21,9 @@ const (
 )
 
 func (h *handler) GetBucketCorsHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.GetBucketCors")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	bktInfo, err := h.getBucketAndCheckOwner(r, reqInfo.BucketName)
@@ -42,7 +45,9 @@ func (h *handler) GetBucketCorsHandler(w http.ResponseWriter, r *http.Request) {
 }
 
 func (h *handler) PutBucketCorsHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.PutBucketCors")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	bktInfo, err := h.getBucketAndCheckOwner(r, reqInfo.BucketName)
@@ -76,7 +81,9 @@ func (h *handler) PutBucketCorsHandler(w http.ResponseWriter, r *http.Request) {
 }
 
 func (h *handler) DeleteBucketCorsHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.DeleteBucketCors")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	bktInfo, err := h.getBucketAndCheckOwner(r, reqInfo.BucketName)
@@ -93,6 +100,9 @@ func (h *handler) DeleteBucketCorsHandler(w http.ResponseWriter, r *http.Request
 }
 
 func (h *handler) AppendCORSHeaders(w http.ResponseWriter, r *http.Request) {
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.AppendCORSHeaders")
+	defer span.End()
+
 	if r.Method == http.MethodOptions {
 		return
 	}
@@ -101,7 +111,6 @@ func (h *handler) AppendCORSHeaders(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	ctx := r.Context()
 	reqInfo := middleware.GetReqInfo(ctx)
 	if reqInfo.BucketName == "" {
 		return
@@ -153,7 +162,9 @@ func (h *handler) AppendCORSHeaders(w http.ResponseWriter, r *http.Request) {
 }
 
 func (h *handler) Preflight(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.Preflight")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 	bktInfo, err := h.getBucketInfo(ctx, reqInfo.BucketName)
 	if err != nil {
diff --git a/api/handler/delete.go b/api/handler/delete.go
index a83242c8..5c08e9fc 100644
--- a/api/handler/delete.go
+++ b/api/handler/delete.go
@@ -7,6 +7,7 @@ import (
 	"strconv"
 	"strings"
 
+	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer"
@@ -61,7 +62,9 @@ type DeleteObjectsResponse struct {
 }
 
 func (h *handler) DeleteObjectHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.DeleteObject")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 	versionID := reqInfo.URL.Query().Get(api.QueryVersionID)
 	versionedObject := []*layer.VersionedObject{{
@@ -128,7 +131,9 @@ func isErrObjectLocked(err error) bool {
 
 // DeleteMultipleObjectsHandler handles multiple delete requests.
 func (h *handler) DeleteMultipleObjectsHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.DeleteMultipleObjects")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	// Content-Length is required and should be non-zero
@@ -230,7 +235,9 @@ func (h *handler) DeleteMultipleObjectsHandler(w http.ResponseWriter, r *http.Re
 }
 
 func (h *handler) DeleteBucketHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.DeleteBucket")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 	bktInfo, err := h.getBucketAndCheckOwner(r, reqInfo.BucketName)
 	if err != nil {
diff --git a/api/handler/get.go b/api/handler/get.go
index 04cebe11..f617a871 100644
--- a/api/handler/get.go
+++ b/api/handler/get.go
@@ -8,6 +8,7 @@ import (
 	"strings"
 	"time"
 
+	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
@@ -148,12 +149,11 @@ func writeHeaders(h http.Header, requestHeader http.Header, extendedInfo *data.E
 }
 
 func (h *handler) GetObjectHandler(w http.ResponseWriter, r *http.Request) {
-	var (
-		params *layer.RangeParams
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.GetObject")
+	defer span.End()
 
-		ctx     = r.Context()
-		reqInfo = middleware.GetReqInfo(ctx)
-	)
+	var params *layer.RangeParams
+	reqInfo := middleware.GetReqInfo(ctx)
 
 	conditional := parseConditionalHeaders(r.Header, h.reqLogger(ctx))
 
diff --git a/api/handler/head.go b/api/handler/head.go
index 8556e4b7..95048922 100644
--- a/api/handler/head.go
+++ b/api/handler/head.go
@@ -4,6 +4,7 @@ import (
 	"io"
 	"net/http"
 
+	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
@@ -27,7 +28,9 @@ func getRangeToDetectContentType(maxSize uint64) *layer.RangeParams {
 }
 
 func (h *handler) HeadObjectHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.HeadObject")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	bktInfo, err := h.getBucketAndCheckOwner(r, reqInfo.BucketName)
@@ -123,7 +126,9 @@ func (h *handler) HeadObjectHandler(w http.ResponseWriter, r *http.Request) {
 }
 
 func (h *handler) HeadBucketHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.HeadBucket")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	bktInfo, err := h.getBucketAndCheckOwner(r, reqInfo.BucketName)
diff --git a/api/handler/info.go b/api/handler/info.go
index d526b812..f50d576e 100644
--- a/api/handler/info.go
+++ b/api/handler/info.go
@@ -3,11 +3,14 @@ package handler
 import (
 	"net/http"
 
+	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/middleware"
 )
 
 func (h *handler) GetBucketLocationHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.GetBucketLocation")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	bktInfo, err := h.getBucketAndCheckOwner(r, reqInfo.BucketName)
diff --git a/api/handler/lifecycle.go b/api/handler/lifecycle.go
index c82b4130..0ded7c0a 100644
--- a/api/handler/lifecycle.go
+++ b/api/handler/lifecycle.go
@@ -10,6 +10,7 @@ import (
 	"net/http"
 	"time"
 
+	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
 	apierr "git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
@@ -27,7 +28,9 @@ const (
 )
 
 func (h *handler) GetBucketLifecycleHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.GetBucketLifecycle")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	bktInfo, err := h.getBucketAndCheckOwner(r, reqInfo.BucketName)
@@ -49,10 +52,12 @@ func (h *handler) GetBucketLifecycleHandler(w http.ResponseWriter, r *http.Reque
 }
 
 func (h *handler) PutBucketLifecycleHandler(w http.ResponseWriter, r *http.Request) {
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.PutBucketLifecycle")
+	defer span.End()
+
 	var buf bytes.Buffer
 
 	tee := io.TeeReader(r.Body, &buf)
-	ctx := r.Context()
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	cfg := new(data.LifecycleConfiguration)
@@ -115,7 +120,9 @@ func (h *handler) PutBucketLifecycleHandler(w http.ResponseWriter, r *http.Reque
 }
 
 func (h *handler) DeleteBucketLifecycleHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.DeleteBucketLifecycle")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	bktInfo, err := h.getBucketAndCheckOwner(r, reqInfo.BucketName)
diff --git a/api/handler/locking.go b/api/handler/locking.go
index e9a0a23b..57b8fe06 100644
--- a/api/handler/locking.go
+++ b/api/handler/locking.go
@@ -7,6 +7,7 @@ import (
 	"strconv"
 	"time"
 
+	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
 	apierr "git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
@@ -26,7 +27,9 @@ const (
 )
 
 func (h *handler) PutBucketObjectLockConfigHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.PutBucketObjectLockConfig")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	bktInfo, err := h.getBucketAndCheckOwner(r, reqInfo.BucketName)
@@ -74,7 +77,9 @@ func (h *handler) PutBucketObjectLockConfigHandler(w http.ResponseWriter, r *htt
 }
 
 func (h *handler) GetBucketObjectLockConfigHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.GetBucketObjectLockConfig")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	bktInfo, err := h.getBucketAndCheckOwner(r, reqInfo.BucketName)
@@ -108,7 +113,9 @@ func (h *handler) GetBucketObjectLockConfigHandler(w http.ResponseWriter, r *htt
 }
 
 func (h *handler) PutObjectLegalHoldHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.PutObjectLegalHold")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	bktInfo, err := h.getBucketAndCheckOwner(r, reqInfo.BucketName)
@@ -161,7 +168,9 @@ func (h *handler) PutObjectLegalHoldHandler(w http.ResponseWriter, r *http.Reque
 }
 
 func (h *handler) GetObjectLegalHoldHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.GetObjectLegalHold")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	bktInfo, err := h.getBucketAndCheckOwner(r, reqInfo.BucketName)
@@ -199,7 +208,9 @@ func (h *handler) GetObjectLegalHoldHandler(w http.ResponseWriter, r *http.Reque
 }
 
 func (h *handler) PutObjectRetentionHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.PutObjectRetention")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	bktInfo, err := h.getBucketAndCheckOwner(r, reqInfo.BucketName)
@@ -247,7 +258,9 @@ func (h *handler) PutObjectRetentionHandler(w http.ResponseWriter, r *http.Reque
 }
 
 func (h *handler) GetObjectRetentionHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.GetObjectRetention")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	bktInfo, err := h.getBucketAndCheckOwner(r, reqInfo.BucketName)
diff --git a/api/handler/multipart_upload.go b/api/handler/multipart_upload.go
index ecf39581..727d49fa 100644
--- a/api/handler/multipart_upload.go
+++ b/api/handler/multipart_upload.go
@@ -10,6 +10,7 @@ import (
 	"strings"
 	"time"
 
+	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
@@ -104,7 +105,9 @@ const (
 )
 
 func (h *handler) CreateMultipartUploadHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.CreateMultipartUpload")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 	uploadID := uuid.New()
 	cannedACLStatus := aclHeadersStatus(r)
@@ -174,7 +177,9 @@ func (h *handler) CreateMultipartUploadHandler(w http.ResponseWriter, r *http.Re
 }
 
 func (h *handler) UploadPartHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.UploadPart")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	bktInfo, err := h.getBucketAndCheckOwner(r, reqInfo.BucketName)
@@ -247,15 +252,16 @@ func (h *handler) UploadPartHandler(w http.ResponseWriter, r *http.Request) {
 }
 
 func (h *handler) UploadPartCopy(w http.ResponseWriter, r *http.Request) {
-	var (
-		versionID   string
-		ctx         = r.Context()
-		reqInfo     = middleware.GetReqInfo(ctx)
-		queryValues = reqInfo.URL.Query()
-		uploadID    = queryValues.Get(uploadIDHeaderName)
-		partNumStr  = queryValues.Get(partNumberHeaderName)
-		additional  = []zap.Field{zap.String("uploadID", uploadID), zap.String("partNumber", partNumStr)}
-	)
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.UploadPartCopy")
+	defer span.End()
+
+	var versionID string
+
+	reqInfo := middleware.GetReqInfo(ctx)
+	queryValues := reqInfo.URL.Query()
+	uploadID := queryValues.Get(uploadIDHeaderName)
+	partNumStr := queryValues.Get(partNumberHeaderName)
+	additional := []zap.Field{zap.String("uploadID", uploadID), zap.String("partNumber", partNumStr)}
 
 	partNumber, err := strconv.Atoi(partNumStr)
 	if err != nil || partNumber < layer.UploadMinPartNumber || partNumber > layer.UploadMaxPartNumber {
@@ -381,7 +387,9 @@ func (h *handler) UploadPartCopy(w http.ResponseWriter, r *http.Request) {
 }
 
 func (h *handler) CompleteMultipartUploadHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.CompleteMultipartUpload")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	bktInfo, err := h.getBucketAndCheckOwner(r, reqInfo.BucketName)
@@ -508,7 +516,9 @@ func (h *handler) completeMultipartUpload(r *http.Request, c *layer.CompleteMult
 }
 
 func (h *handler) ListMultipartUploadsHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.ListMultipartUploads")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	bktInfo, err := h.getBucketAndCheckOwner(r, reqInfo.BucketName)
@@ -559,7 +569,9 @@ func (h *handler) ListMultipartUploadsHandler(w http.ResponseWriter, r *http.Req
 }
 
 func (h *handler) ListPartsHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.ListParts")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	bktInfo, err := h.getBucketAndCheckOwner(r, reqInfo.BucketName)
@@ -623,7 +635,9 @@ func (h *handler) ListPartsHandler(w http.ResponseWriter, r *http.Request) {
 }
 
 func (h *handler) AbortMultipartUploadHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.AbortMultipartUpload")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	bktInfo, err := h.getBucketAndCheckOwner(r, reqInfo.BucketName)
diff --git a/api/handler/object_list.go b/api/handler/object_list.go
index 33183966..6d68501d 100644
--- a/api/handler/object_list.go
+++ b/api/handler/object_list.go
@@ -7,6 +7,7 @@ import (
 	"strings"
 	"time"
 
+	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
@@ -19,7 +20,9 @@ const maxObjectList = 1000 // Limit number of objects in a listObjectsResponse/l
 
 // ListObjectsV1Handler handles objects listing requests for API version 1.
 func (h *handler) ListObjectsV1Handler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.ListObjectsV1")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 	params, err := parseListObjectsArgsV1(reqInfo)
 	if err != nil {
@@ -64,7 +67,9 @@ func (h *handler) encodeV1(p *layer.ListObjectsParamsV1, list *layer.ListObjects
 
 // ListObjectsV2Handler handles objects listing requests for API version 2.
 func (h *handler) ListObjectsV2Handler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.ListObjectsV2")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 	params, err := parseListObjectsArgsV2(reqInfo)
 	if err != nil {
@@ -223,7 +228,9 @@ func fillContents(src []*data.ExtendedNodeVersion, encode string, fetchOwner, md
 }
 
 func (h *handler) ListBucketObjectVersionsHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.ListBucketObjectVersions")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 	p, err := parseListObjectVersionsRequest(reqInfo)
 	if err != nil {
diff --git a/api/handler/patch.go b/api/handler/patch.go
index deba2cbf..c7af89d4 100644
--- a/api/handler/patch.go
+++ b/api/handler/patch.go
@@ -7,6 +7,7 @@ import (
 	"strings"
 	"time"
 
+	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
@@ -19,7 +20,9 @@ import (
 const maxPatchSize = 5 * 1024 * 1024 * 1024 // 5GB
 
 func (h *handler) PatchObjectHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.PatchObject")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	if _, ok := r.Header[api.ContentRange]; !ok {
diff --git a/api/handler/put.go b/api/handler/put.go
index ee8764ef..03083f61 100644
--- a/api/handler/put.go
+++ b/api/handler/put.go
@@ -18,6 +18,7 @@ import (
 	"strings"
 	"time"
 
+	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/auth"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
@@ -196,12 +197,13 @@ type createBucketParams struct {
 }
 
 func (h *handler) PutObjectHandler(w http.ResponseWriter, r *http.Request) {
-	var (
-		err             error
-		cannedACLStatus = aclHeadersStatus(r)
-		ctx             = r.Context()
-		reqInfo         = middleware.GetReqInfo(ctx)
-	)
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.PutObject")
+	defer span.End()
+
+	var err error
+
+	cannedACLStatus := aclHeadersStatus(r)
+	reqInfo := middleware.GetReqInfo(ctx)
 
 	bktInfo, err := h.getBucketAndCheckOwner(r, reqInfo.BucketName)
 	if err != nil {
@@ -486,12 +488,13 @@ func (h *handler) isTLSCheckRequired(r *http.Request) bool {
 }
 
 func (h *handler) PostObject(w http.ResponseWriter, r *http.Request) {
-	var (
-		tagSet   map[string]string
-		ctx      = r.Context()
-		reqInfo  = middleware.GetReqInfo(ctx)
-		metadata = make(map[string]string)
-	)
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.PostObject")
+	defer span.End()
+
+	var tagSet map[string]string
+
+	reqInfo := middleware.GetReqInfo(ctx)
+	metadata := make(map[string]string)
 
 	policy, err := checkPostPolicy(r, reqInfo, metadata)
 	if err != nil {
@@ -776,7 +779,10 @@ func parseCannedACL(header http.Header) (string, error) {
 }
 
 func (h *handler) CreateBucketHandler(w http.ResponseWriter, r *http.Request) {
-	h.createBucketHandlerPolicy(w, r)
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.CreateBucket")
+	defer span.End()
+
+	h.createBucketHandlerPolicy(w, r.WithContext(ctx))
 }
 
 func (h *handler) parseCommonCreateBucketParams(reqInfo *middleware.ReqInfo, boxData *accessbox.Box, r *http.Request) (*keys.PublicKey, *layer.CreateBucketParams, error) {
diff --git a/api/handler/tagging.go b/api/handler/tagging.go
index ac20828a..9dd7c369 100644
--- a/api/handler/tagging.go
+++ b/api/handler/tagging.go
@@ -6,6 +6,7 @@ import (
 	"strings"
 	"unicode"
 
+	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
@@ -21,7 +22,9 @@ const (
 )
 
 func (h *handler) PutObjectTaggingHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.PutObjectTagging")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	tagSet, err := h.readTagSet(reqInfo.Tagging)
@@ -54,7 +57,9 @@ func (h *handler) PutObjectTaggingHandler(w http.ResponseWriter, r *http.Request
 }
 
 func (h *handler) GetObjectTaggingHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.GetObjectTagging")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	bktInfo, err := h.getBucketAndCheckOwner(r, reqInfo.BucketName)
@@ -92,7 +97,9 @@ func (h *handler) GetObjectTaggingHandler(w http.ResponseWriter, r *http.Request
 }
 
 func (h *handler) DeleteObjectTaggingHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.DeleteObjectTagging")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	bktInfo, err := h.getBucketAndCheckOwner(r, reqInfo.BucketName)
@@ -116,7 +123,9 @@ func (h *handler) DeleteObjectTaggingHandler(w http.ResponseWriter, r *http.Requ
 }
 
 func (h *handler) PutBucketTaggingHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.PutBucketTagging")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	tagSet, err := h.readTagSet(reqInfo.Tagging)
@@ -138,7 +147,9 @@ func (h *handler) PutBucketTaggingHandler(w http.ResponseWriter, r *http.Request
 }
 
 func (h *handler) GetBucketTaggingHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.GetBucketTagging")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	bktInfo, err := h.getBucketAndCheckOwner(r, reqInfo.BucketName)
@@ -160,7 +171,9 @@ func (h *handler) GetBucketTaggingHandler(w http.ResponseWriter, r *http.Request
 }
 
 func (h *handler) DeleteBucketTaggingHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.DeleteBucketTagging")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	bktInfo, err := h.getBucketAndCheckOwner(r, reqInfo.BucketName)
diff --git a/api/handler/versioning.go b/api/handler/versioning.go
index bf9c895c..5a3c0eae 100644
--- a/api/handler/versioning.go
+++ b/api/handler/versioning.go
@@ -3,6 +3,7 @@ package handler
 import (
 	"net/http"
 
+	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
 	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer"
@@ -10,7 +11,9 @@ import (
 )
 
 func (h *handler) PutBucketVersioningHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.PutBucketVersioning")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	configuration := new(VersioningConfiguration)
@@ -57,7 +60,9 @@ func (h *handler) PutBucketVersioningHandler(w http.ResponseWriter, r *http.Requ
 
 // GetBucketVersioningHandler implements bucket versioning getter handler.
 func (h *handler) GetBucketVersioningHandler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
+	ctx, span := tracing.StartSpanFromContext(r.Context(), "handler.GetBucketVersioning")
+	defer span.End()
+
 	reqInfo := middleware.GetReqInfo(ctx)
 
 	bktInfo, err := h.getBucketAndCheckOwner(r, reqInfo.BucketName)