diff --git a/tldtester/admin.py b/tldtester/admin.py
index dedc845..01d1b5f 100644
--- a/tldtester/admin.py
+++ b/tldtester/admin.py
@@ -7,7 +7,7 @@ import threading
 
 
 class tlds(ExtraButtonsMixin, admin.ModelAdmin):
-    list_display = ('tld', 'nsamount', 'v4nsamount', 'v6nsamount', 'lastEdition')
+    list_display = ('tld', 'nsamount', 'v4nsamount', 'v6nsamount', 'dnssec', 'lastEdition')
 
     @button(change_form=True, html_attrs={'style': 'background-color:#88FF88;color:black'})
     def refresh(self, request):
diff --git a/tldtester/models.py b/tldtester/models.py
index 9f2a50e..35aafba 100644
--- a/tldtester/models.py
+++ b/tldtester/models.py
@@ -26,7 +26,7 @@ class TLD(models.Model):
         (253, "private algorithm"),
         (254, "private algorithm OID"),
         (300, "Unknown"),
-
+        (400, "None"),
     )
     tld = models.CharField(max_length=30, primary_key=True)
     nsamount = models.IntegerField(default=0)
diff --git a/tldtester/sorter.py b/tldtester/sorter.py
index 7914e2d..6f5ce96 100644
--- a/tldtester/sorter.py
+++ b/tldtester/sorter.py
@@ -34,6 +34,7 @@ def dbwriter(recs):
     db.nsamount = recs["nsserveramount"]
     db.v4nsamount = recs["v4resolvers"]
     db.v6nsamount = recs["v6resolvers"]
+    db.dnssec = recs["algo"]
     db.save()
 
 
@@ -44,26 +45,55 @@ def grabber(data):
     """
     for tld in data:
         nsservers = []
+        dnsseckeys = []
         Arecords = 0
         AAAArecords = 0
-        ns = dns.resolver.resolve(tld, 'NS')
-        for server in ns:
-            nsservers.append(server.to_text())
+        try:
+            ns = dns.resolver.resolve(tld, 'NS')
+            for server in ns:
+                nsservers.append(server.to_text())
+        except Exception as e:
+            print(e)
         for Arecord in nsservers:
             try:
-                dns.resolver.resolve(Arecord, 'A')
+                try:
+                    dns.resolver.resolve(Arecord, 'A')
+                except Exception as e:
+                    # retry
+                    print(e)
+                    dns.resolver.resolve(Arecord, 'A')
                 Arecords += 1
             except Exception as e:
                 print(e)
         for AAAArecord in nsservers:
             try:
-                dns.resolver.resolve(AAAArecord, 'AAAA')
+                try:
+                    dns.resolver.resolve(AAAArecord, 'AAAA')
+                except Exception as e:
+                    # retry
+                    print(e)
+                    dns.resolver.resolve(AAAArecord, 'AAAA')
                 AAAArecords += 1
             except Exception as e:
                 print(e)
+        try:
+            try:
+                ds = dns.resolver.resolve(tld, 'DS')
+            except Exception as e:
+                # retry
+                print(e)
+                ds = dns.resolver.resolve(tld, 'DS')
+            for dsrecord in ds:
+                algo = dsrecord.to_text()
+                line = algo.split()
+                dnsseckeys.append(int(line[1]))
+            algo = max(list(dict.fromkeys(dnsseckeys)))
+        except Exception as e:
+            algo = 400
+            print(e)
 
         results = {"tld": tld, "nsserveramount": int(len((nsservers))), "v4resolvers": Arecords,
-                   "v6resolvers": AAAArecords}
+                   "v6resolvers": AAAArecords, "algo": algo}
         dbwriter(results)