diff --git a/lib/util.py b/lib/util.py
index eccba61a..7034410b 100644
--- a/lib/util.py
+++ b/lib/util.py
@@ -427,36 +427,19 @@ def time_difference(distance_in_time, include_seconds):
         return "over %d years" % (round(distance_in_minutes / 525600))
 
 mainnet_block_explorers = {
-    'Biteasy.com': ('https://www.biteasy.com/blockchain',
-                        {'tx': 'transactions', 'addr': 'addresses'}),
-    'Bitflyer.jp': ('https://chainflyer.bitflyer.jp',
-                        {'tx': 'Transaction', 'addr': 'Address'}),
-    'Blockchain.info': ('https://blockchain.info',
+    'ZCLMine.pro': ('http://explorer.zclmine.pro/insight-api-zcash',
                         {'tx': 'tx', 'addr': 'address'}),
-    'blockchainbdgpzk.onion': ('https://blockchainbdgpzk.onion',
+    'ZclassicExplorer.com': ('http://149.56.129.104/insight-api-zcash',
                         {'tx': 'tx', 'addr': 'address'}),
-    'Blockr.io': ('https://btc.blockr.io',
-                        {'tx': 'tx/info', 'addr': 'address/info'}),
-    'Blocktrail.com': ('https://www.blocktrail.com/BTC',
+    'BlockCypher.com': ('http://zcl-explorer.com/insight-api-zcash',
                         {'tx': 'tx', 'addr': 'address'}),
-    'BTC.com': ('https://chain.btc.com',
-                        {'tx': 'tx', 'addr': 'address'}),
-    'Chain.so': ('https://www.chain.so',
-                        {'tx': 'tx/BTC', 'addr': 'address/BTC'}),
-    'Insight.is': ('https://insight.bitpay.com',
-                        {'tx': 'tx', 'addr': 'address'}),
-    'TradeBlock.com': ('https://tradeblock.com/blockchain',
-                        {'tx': 'tx', 'addr': 'address'}),
-    'BlockCypher.com': ('https://live.blockcypher.com/btc',
-                        {'tx': 'tx', 'addr': 'address'}),
-    'Blockchair.com': ('https://blockchair.com/bitcoin',
-                        {'tx': 'transaction', 'addr': 'address'}),
     'system default': ('blockchain:',
                         {'tx': 'tx', 'addr': 'address'}),
 }
 
+# TODO zcl testnet block explorer
 testnet_block_explorers = {
-    'Blocktrail.com': ('https://www.blocktrail.com/tBTC',
+    #'Blocktrail.com': ('https://www.blocktrail.com/tBTC',
                        {'tx': 'tx', 'addr': 'address'}),
     'system default': ('blockchain:',
                        {'tx': 'tx', 'addr': 'address'}),
@@ -467,7 +450,7 @@ def block_explorer_info():
     return testnet_block_explorers if bitcoin.NetworkConstants.TESTNET else mainnet_block_explorers
 
 def block_explorer(config):
-    return config.get('block_explorer', 'Blocktrail.com')
+    return config.get('block_explorer', 'ZclassicExplorer.com')
 
 def block_explorer_tuple(config):
     return block_explorer_info().get(block_explorer(config))