diff --git a/src/Jackett.Common/Definitions/brasiltracker.yml b/src/Jackett.Common/Definitions/brasiltracker.yml
index 5e5582a2ec7f0..2ed563c90861d 100644
--- a/src/Jackett.Common/Definitions/brasiltracker.yml
+++ b/src/Jackett.Common/Definitions/brasiltracker.yml
@@ -133,8 +133,8 @@ search:
         - name: append
           args: " {{ .Result.title_details }}"
     minimumratio:
-      text: 0.6
+      text: 1.0
     minimumseedtime:
-      # 3 days (as seconds = 3 x 24 x 60 x 60)
-      text: 259200
+      # 2 days (as seconds = 2 x 24 x 60 x 60)
+      text: 172800
 # Project Gazelle
diff --git a/src/Jackett.Common/Definitions/gigatorrents.yml b/src/Jackett.Common/Definitions/gigatorrents.yml
index 96d6120cf15f1..aebc1a1c636b7 100644
--- a/src/Jackett.Common/Definitions/gigatorrents.yml
+++ b/src/Jackett.Common/Definitions/gigatorrents.yml
@@ -165,6 +165,11 @@ search:
       filters:
         - name: trim
           args: "x"
+    minimumratio:
+      text: 0.5
+    minimumseedtime:
+      # 2 days (as seconds = 2 x 24 x 60 x 60)
+      text: 172800
     date:
       selector: td:nth-child(2)
       remove: a
diff --git a/src/Jackett.Common/Definitions/greekdiamond.yml b/src/Jackett.Common/Definitions/greekdiamond.yml
index 18b4965bbdd0a..5db1c591d669b 100644
--- a/src/Jackett.Common/Definitions/greekdiamond.yml
+++ b/src/Jackett.Common/Definitions/greekdiamond.yml
@@ -182,4 +182,7 @@ search:
       text: 1
     minimumratio:
       text: 1.0
+    minimumseedtime:
+      # 3 days (as seconds = 3 x 24 x 60 x 60)
+      text: 259200
 # xbtit dt fm v20.0
diff --git a/src/Jackett.Common/Definitions/hddisk.yml b/src/Jackett.Common/Definitions/hddisk.yml
index 3e0409c6cf054..45421f4a759f2 100644
--- a/src/Jackett.Common/Definitions/hddisk.yml
+++ b/src/Jackett.Common/Definitions/hddisk.yml
@@ -165,6 +165,8 @@ search:
         img.pro_free2up: 2
         img.pro_2up: 2
         "*": 1
+    minimumratio:
+      text: 0.8
     description:
       selector: td:nth-child(2)
       remove: a, img
diff --git a/src/Jackett.Common/Definitions/hdzone.yml b/src/Jackett.Common/Definitions/hdzone.yml
index 4f96f9214342d..afc9ccbe29798 100644
--- a/src/Jackett.Common/Definitions/hdzone.yml
+++ b/src/Jackett.Common/Definitions/hdzone.yml
@@ -191,6 +191,12 @@ search:
         img.pro_free2up: 2
         img.pro_2up: 2
         "*": 1
+    minimumratio:
+      text: 1.2
+# does not appear to be implemented, no h&r tag found
+#     minimumseedtime:
+#       # 14 days (as seconds = 2 x 24 x 60 x 60)
+#       text: 1209600
     description:
       selector: td:nth-child(2)
       remove: a, img
diff --git a/src/Jackett.Common/Definitions/polishsource.yml b/src/Jackett.Common/Definitions/polishsource.yml
index ed6cc96a9c13f..f1d536eefaae1 100644
--- a/src/Jackett.Common/Definitions/polishsource.yml
+++ b/src/Jackett.Common/Definitions/polishsource.yml
@@ -158,4 +158,7 @@ search:
       text: 0
     uploadvolumefactor:
       text: 1
+    minimumseedtime:
+      # 2 days (as seconds = 2 x 24 x 60 x 60)
+      text: 172800
 # engine n/a
diff --git a/src/Jackett.Common/Definitions/uniongang.yml b/src/Jackett.Common/Definitions/uniongang.yml
index 60055b00d6ca8..1204dc37a9f03 100644
--- a/src/Jackett.Common/Definitions/uniongang.yml
+++ b/src/Jackett.Common/Definitions/uniongang.yml
@@ -120,4 +120,6 @@ search:
         "*": 1
     uploadvolumefactor:
       text: 1
+    minimumratio:
+      text: 0.3
 # engine tbd