diff --git a/docs/VictoriaLogs/data-ingestion/README.md b/docs/VictoriaLogs/data-ingestion/README.md
index fb224bf1e..a99812015 100644
--- a/docs/VictoriaLogs/data-ingestion/README.md
+++ b/docs/VictoriaLogs/data-ingestion/README.md
@@ -68,7 +68,7 @@ The command should return the following response:
 {"_msg":"cannot open file","_stream":"{}","_time":"2023-06-21T04:24:24Z","host.name":"host123"}
 ```
 
-Note that the response contains [`_msg`](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#message-field),
+The response by default contains [`_msg`](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#message-field),
 [`_stream`](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#stream-fields) and
 [`_time`](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#time-field) fields plus the explicitly mentioned fields.
 See [these docs](https://docs.victoriametrics.com/VictoriaLogs/LogsQL.html#querying-specific-fields) for details.
@@ -119,7 +119,7 @@ The command should return the following response:
 {"_msg":"oh no!","_stream":"{stream=\"stream1\"}","_time":"2023-06-20T15:32:10.567Z","log.level":"error"}
 ```
 
-Note that the response contains [`_msg`](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#message-field),
+The response by default contains [`_msg`](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#message-field),
 [`_stream`](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#stream-fields) and
 [`_time`](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#time-field) fields plus the explicitly mentioned fields.
 See [these docs](https://docs.victoriametrics.com/VictoriaLogs/LogsQL.html#querying-specific-fields) for details.
@@ -164,6 +164,22 @@ These headers may contain the needed tenant to ingest data to. See [multitenancy
 
 ## Troubleshooting
 
+The following command can be used for verifying whether the data is successfully ingested into VictoriaLogs:
+
+```logsql
+curl http://localhost:9428/select/logsql/query -d 'query=*' | head
+```
+
+This command selects all the data ingested into VictoriaLogs via [HTTP query API](https://docs.victoriametrics.com/VictoriaLogs/querying/#http-api)
+using [any value filter](https://docs.victoriametrics.com/VictoriaLogs/LogsQL.html#any-value-filter),
+while `head` cancels query execution after reading the first 10 log lines. See [these docs](https://docs.victoriametrics.com/VictoriaLogs/querying/#command-line)
+for more details on how `head` integrates with VictoriaLogs.
+
+The response by default contains [`_msg`](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#message-field),
+[`_stream`](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#stream-fields) and
+[`_time`](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#time-field) fields plus the explicitly mentioned fields.
+See [these docs](https://docs.victoriametrics.com/VictoriaLogs/LogsQL.html#querying-specific-fields) for details.
+
 VictoriaLogs provides the following command-line flags, which can help debugging data ingestion issues:
 
 - `-logNewStreams` - if this flag is passed to VictoriaLogs, then it logs all the newly
diff --git a/docs/VictoriaLogs/querying/README.md b/docs/VictoriaLogs/querying/README.md
index 066ca0655..a3bbb5950 100644
--- a/docs/VictoriaLogs/querying/README.md
+++ b/docs/VictoriaLogs/querying/README.md
@@ -28,7 +28,7 @@ For example, the following query returns all the log entries with the `error` wo
 curl http://localhost:9428/select/logsql/query -d 'query=error'
 ```
 
-Note that the response contains [`_msg`](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#message-field),
+The response by default contains [`_msg`](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#message-field),
 [`_stream`](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#stream-fields) and
 [`_time`](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#time-field) fields plus the explicitly mentioned fields.
 See [these docs](https://docs.victoriametrics.com/VictoriaLogs/LogsQL.html#querying-specific-fields) for details.