diff --git a/src/seeder/db.h b/src/seeder/db.h
--- a/src/seeder/db.h
+++ b/src/seeder/db.h
@@ -80,6 +80,7 @@
 private:
     CService ip;
     uint64_t services;
+    int64_t timeFirstFound;
     int64_t lastTry;
     int64_t ourLastTry;
     int64_t ourLastSuccess;
@@ -95,10 +96,17 @@
     int success;
     std::string clientSubVersion;
 
+protected:
+    bool hasRunTestNodeBefore() const { return total > 0; }
+    int64_t timeSinceFoundOrLastSuccess(int64_t now = time(nullptr)) {
+        return now - success > 0 ? ourLastSuccess : timeFirstFound;
+    }
+
 public:
     CAddrInfo()
-        : services(0), lastTry(0), ourLastTry(0), ourLastSuccess(0),
-          ignoreTill(0), clientVersion(0), blocks(0), total(0), success(0) {}
+        : services(0), timeFirstFound(time(nullptr)), lastTry(0), ourLastTry(0),
+          ourLastSuccess(0), ignoreTill(0), clientVersion(0), blocks(0),
+          total(0), success(0) {}
 
     CAddrReport GetReport() const {
         CAddrReport ret;
@@ -221,6 +229,7 @@
             return;
         }
 
+        READWRITE(timeFirstFound);
         READWRITE(ourLastTry);
         READWRITE(ignoreTill);
         READWRITE(stat2H);
@@ -260,11 +269,14 @@
 struct CServiceResult {
     CService service;
     bool fGood;
+    bool fReliable;
     int nBanTime;
     int nHeight;
     int nClientV;
     std::string strClientV;
     int64_t ourLastSuccess;
+    bool hasRunTestNodeBefore;
+    int64_t timeSinceFoundOrLastSuccess;
 };
 
 /**
diff --git a/src/seeder/db.cpp b/src/seeder/db.cpp
--- a/src/seeder/db.cpp
+++ b/src/seeder/db.cpp
@@ -69,6 +69,10 @@
         } else {
             ip.service = idToInfo[ret].ip;
             ip.ourLastSuccess = idToInfo[ret].ourLastSuccess;
+            ip.hasRunTestNodeBefore = idToInfo[ret].hasRunTestNodeBefore();
+            ip.fReliable = idToInfo[ret].IsGood();
+            ip.timeSinceFoundOrLastSuccess =
+                idToInfo[ret].timeSinceFoundOrLastSuccess();
             break;
         }
     } while (1);
diff --git a/src/seeder/main.cpp b/src/seeder/main.cpp
--- a/src/seeder/main.cpp
+++ b/src/seeder/main.cpp
@@ -194,6 +194,10 @@
             res.fGood = TestNode(res.service, res.nBanTime, res.nClientV,
                                  res.strClientV, res.nHeight,
                                  getaddr ? &addr : nullptr);
+            if (!res.fGood && !res.fReliable && res.hasRunTestNodeBefore &&
+                res.timeSinceFoundOrLastSuccess > 2 * 86400) {
+                res.nBanTime = std::max(100000, res.nBanTime);
+            }
         }
 
         db.ResultMany(ips);