diff --git a/cmd/csaf_checker/links.go b/cmd/csaf_checker/links.go
index c7aec57..4eed5f9 100644
--- a/cmd/csaf_checker/links.go
+++ b/cmd/csaf_checker/links.go
@@ -9,11 +9,12 @@
 package main
 
 import (
-	"github.com/gocsaf/csaf/v3/internal/misc"
 	"io"
 	"net/http"
 	"net/url"
 
+	"github.com/gocsaf/csaf/v3/internal/misc"
+
 	"github.com/PuerkitoBio/goquery"
 
 	"github.com/gocsaf/csaf/v3/util"
@@ -94,7 +95,12 @@ func (pgs pages) listed(
 				return err
 			}
 			// Links may be relative
-			abs := misc.JoinURL(baseURL, u).String()
+			var abs string
+			if u.IsAbs() {
+				abs = u.String()
+			} else {
+				abs = misc.JoinURL(baseURL, u).String()
+			}
 			content.links.Add(abs)
 			return nil
 		})