diff --git a/internal/handlers/check.go b/internal/handlers/check.go
index cecae43..1f52027 100644
--- a/internal/handlers/check.go
+++ b/internal/handlers/check.go
@@ -113,7 +113,7 @@ func CheckMyWork(w http.ResponseWriter, r *http.Request) {
 
 				switch column {
 				// make sure these columns are integers
-				case "Parent Collection", "PPI":
+				case "Parent Collection", "PPI", "Node ID":
 					id, err := strconv.Atoi(cell)
 					if err != nil {
 						errors[i] = "Must be an integer"
@@ -125,7 +125,13 @@ func CheckMyWork(w http.ResponseWriter, r *http.Request) {
 							errors[i] = fmt.Sprintf("Could not identify parent collection %d", id)
 						}
 					}
-				// make sure these columns are valid URLs
+					if column == "Node ID" {
+						url := fmt.Sprintf("https://preserve.lehigh.edu/node/%d?_format=json", id)
+						if !checkURL(url) {
+							errors[i] = fmt.Sprintf("Could not find node ID %d", id)
+						}
+					}
+					// make sure these columns are valid URLs
 				case "Catalog or ArchivesSpace URL":
 					parsedURL, err := url.ParseRequestURI(cell)
 					if err != nil || parsedURL.Scheme == "" && parsedURL.Host == "" {
diff --git a/internal/handlers/check_test.go b/internal/handlers/check_test.go
index 0cea8c8..de943d9 100644
--- a/internal/handlers/check_test.go
+++ b/internal/handlers/check_test.go
@@ -335,7 +335,7 @@ func TestCheckMyWork(t *testing.T) {
 			method: http.MethodPost,
 			body: [][]string{
 				{"Title", "Object Model", "Full Title", "Node ID"},
-				{"", "", "", "foo"},
+				{"", "", "", "2"},
 			},
 			statusCode: http.StatusOK,
 			response:   `{}`,
diff --git a/internal/handlers/transform_test.go b/internal/handlers/transform_test.go
index 6bbf87c..13c2989 100644
--- a/internal/handlers/transform_test.go
+++ b/internal/handlers/transform_test.go
@@ -123,7 +123,7 @@ func equalStringSlices(a, b []string) bool {
 		return false
 	}
 	for i := range a {
-		if a[i] != b[i] {
+		if !strInSlice(a[i], b) {
 			return false
 		}
 	}