diff --git a/ntpdb/server.go b/ntpdb/server.go
new file mode 100644
index 0000000..115a0b3
--- /dev/null
+++ b/ntpdb/server.go
@@ -0,0 +1,16 @@
+package ntpdb
+
+import "time"
+
+func (s *Server) DeletionAge(dur time.Duration) bool {
+	if !s.DeletionOn.Valid {
+		return false
+	}
+	if dur > 0 {
+		dur = dur * -1
+	}
+	if s.DeletionOn.Time.Before(time.Now().Add(dur)) {
+		return true
+	}
+	return false
+}
diff --git a/server/graph_image.go b/server/graph_image.go
index b0aaca7..d8022dc 100644
--- a/server/graph_image.go
+++ b/server/graph_image.go
@@ -8,6 +8,7 @@ import (
 	"net/http/httptrace"
 	"net/url"
 	"os"
+	"time"
 
 	"github.com/hashicorp/go-retryablehttp"
 	"github.com/labstack/echo/v4"
@@ -49,6 +50,9 @@ func (srv *Server) graphImage(c echo.Context) error {
 	if serverData.ID == 0 {
 		return c.String(http.StatusNotFound, "not found")
 	}
+	if serverData.DeletionAge(7 * 24 * time.Hour) {
+		return c.String(http.StatusNotFound, "not found")
+	}
 
 	if serverData.Ip != serverID {
 		return c.Redirect(308, fmt.Sprintf("/graph/%s/offset.png", serverData.Ip))
diff --git a/server/history.go b/server/history.go
index ec8f6c7..86627e4 100644
--- a/server/history.go
+++ b/server/history.go
@@ -115,6 +115,10 @@ func (srv *Server) history(c echo.Context) error {
 		span.RecordError(err)
 		return c.String(http.StatusInternalServerError, "internal error")
 	}
+	if server.DeletionAge(30 * 24 * time.Hour) {
+		span.AddEvent("server deleted")
+		return c.String(http.StatusNotFound, "server not found")
+	}
 	if server.ID == 0 {
 		span.AddEvent("server not found")
 		return c.String(http.StatusNotFound, "server not found")