diff --git a/app/vmagent/README.md b/app/vmagent/README.md
index d167bf9958..2912be4a26 100644
--- a/app/vmagent/README.md
+++ b/app/vmagent/README.md
@@ -183,7 +183,7 @@ Read more about relabeling in the following articles:
 `vmagent` exports various metrics in Prometheus exposition format at `http://vmagent-host:8429/metrics` page. It is recommended setting up regular scraping of this page
 either via `vmagent` itself or via Prometheus, so the exported metrics could be analyzed later.
 
-`vmagent` also exports target statuses at `http://vmagent-host:8429/targets` page in plaintext format.
+`vmagent` also exports target statuses at `http://vmagent-host:8429/targets` page in plaintext format. This page also exports information on improperly configured scrape configs.
 
 
 ### Troubleshooting
diff --git a/docs/vmagent.md b/docs/vmagent.md
index d167bf9958..2912be4a26 100644
--- a/docs/vmagent.md
+++ b/docs/vmagent.md
@@ -183,7 +183,7 @@ Read more about relabeling in the following articles:
 `vmagent` exports various metrics in Prometheus exposition format at `http://vmagent-host:8429/metrics` page. It is recommended setting up regular scraping of this page
 either via `vmagent` itself or via Prometheus, so the exported metrics could be analyzed later.
 
-`vmagent` also exports target statuses at `http://vmagent-host:8429/targets` page in plaintext format.
+`vmagent` also exports target statuses at `http://vmagent-host:8429/targets` page in plaintext format. This page also exports information on improperly configured scrape configs.
 
 
 ### Troubleshooting
diff --git a/lib/promscrape/targetstatus.go b/lib/promscrape/targetstatus.go
index b362d9a84b..081588a2c4 100644
--- a/lib/promscrape/targetstatus.go
+++ b/lib/promscrape/targetstatus.go
@@ -86,6 +86,7 @@ func (tsm *targetStatusMap) WriteHumanReadable(w io.Writer) {
 		return jss[i].job < jss[j].job
 	})
 
+	targetsByEndpoint := make(map[string]int)
 	for _, js := range jss {
 		sts := js.statuses
 		sort.Slice(sts, func(i, j int) bool {
@@ -115,8 +116,20 @@ func (tsm *targetStatusMap) WriteHumanReadable(w io.Writer) {
 			}
 			fmt.Fprintf(w, "\tstate=%s, endpoint=%s, labels=%s, last_scrape=%.3fs ago, scrape_duration=%.3fs, error=%q\n",
 				state, st.sw.ScrapeURL, labelsStr, lastScrape.Seconds(), float64(st.scrapeDuration)/1000, errMsg)
+			key := fmt.Sprintf("endpoint=%s, labels=%s", st.sw.ScrapeURL, labelsStr)
+			targetsByEndpoint[key]++
 		}
 	}
+	fmt.Fprintf(w, "\n")
+
+	// Check whether there are targets with duplicate endpoints and labels.
+	for key, n := range targetsByEndpoint {
+		if n <= 1 {
+			continue
+		}
+		fmt.Fprintf(w, "!!! Scrape config error: %d duplicate targets with identical endpoint and labels found:\n", n)
+		fmt.Fprintf(w, "\t%s\n", key)
+	}
 }
 
 type jobStatus struct {