Error 403 for rpc http provider

[vBlackOut]

error 403 any call on RPC server

requests.exceptions.HTTPError: 403 Client Error: Forbidden for url: https://chainrpc.com

why this url return 403 ? but inside metamask it's work ?

thank

debug :

DEBUG:web3.providers.HTTPProvider:Making request HTTP. URI: https://chainrpc.com, Method: web3_clientVersion
DEBUG:web3._utils.request:Session cached: https://chainrpc.com, <requests.sessions.Session object at 0xfff634987a10>
DEBUG:urllib3.connectionpool:Starting new HTTPS connection (1): chainrpc.com:443
DEBUG:urllib3.connectionpool:https://chainrpc.com:443 "POST / HTTP/1.1" 403 None Connection Failed
DEBUG:web3.RequestManager:Making request. Method: eth_getTransactionCount
DEBUG:web3.providers.HTTPProvider:Making request HTTP. URI: https://chainrpc.com, Method: eth_getTransactionCount
DEBUG:urllib3.connectionpool:https://chainrpc.com:443 "POST / HTTP/1.1" 200 67
DEBUG:web3.providers.HTTPProvider:Getting response HTTP. URI: https://chainrpc.com, Method: eth_getTransactionCount, Response: {'jsonrpc': '2.0', 'id': 1, 'result': '0xf22e'}
DEBUG:web3.RequestManager:Making request. Method: eth_estimateGas
DEBUG:web3.RequestManager:Making request. Method: eth_chainId
DEBUG:web3.providers.HTTPProvider:Making request HTTP. URI: https://chainrpc.com, Method: eth_chainId
DEBUG:urllib3.connectionpool:https://chainrpc.com:443 "POST / HTTP/1.1" 200 67
DEBUG:web3.providers.HTTPProvider:Getting response HTTP. URI: https://chainrpc.com, Method: eth_chainId, Response: {'jsonrpc': '2.0', 'id': 2, 'result': '0x7f08'}
DEBUG:web3.providers.HTTPProvider:Making request HTTP. URI: https://chainrpc.com, Method: eth_estimateGas
DEBUG:urllib3.connectionpool:https://chainrpc.com:443 "POST / HTTP/1.1" 200 68
DEBUG:web3.providers.HTTPProvider:Getting response HTTP. URI: https://chainrpc.com, Method: eth_estimateGas, Response: {'jsonrpc': '2.0', 'id': 3, 'result': '0x1e140'}
DEBUG:web3.RequestManager:Making request. Method: eth_estimateGas
DEBUG:web3.RequestManager:Making request. Method: eth_chainId
DEBUG:web3.providers.HTTPProvider:Making request HTTP. URI: https://chainrpc.com, Method: eth_chainId
DEBUG:urllib3.connectionpool:https://chainrpc.com:443 "POST / HTTP/1.1" 200 67
DEBUG:web3.providers.HTTPProvider:Getting response HTTP. URI: https://chainrpc.com, Method: eth_chainId, Response: {'jsonrpc': '2.0', 'id': 4, 'result': '0x7f08'}
DEBUG:web3.providers.HTTPProvider:Making request HTTP. URI: https://chainrpc.com, Method: eth_estimateGas
DEBUG:urllib3.connectionpool:https://chainrpc.com:443 "POST / HTTP/1.1" 200 68
DEBUG:web3.providers.HTTPProvider:Getting response HTTP. URI: https://chainrpc.com, Method: eth_estimateGas, Response: {'jsonrpc': '2.0', 'id': 5, 'result': '0x1e140'}
DEBUG:web3.RequestManager:Making request. Method: eth_estimateGas
DEBUG:web3.RequestManager:Making request. Method: eth_chainId
DEBUG:web3.providers.HTTPProvider:Making request HTTP. URI: https://chainrpc.com, Method: eth_chainId
DEBUG:urllib3.connectionpool:https://chainrpc.com:443 "POST / HTTP/1.1" 200 67
DEBUG:web3.providers.HTTPProvider:Getting response HTTP. URI: https://chainrpc.com, Method: eth_chainId, Response: {'jsonrpc': '2.0', 'id': 6, 'result': '0x7f08'}
DEBUG:web3.providers.HTTPProvider:Making request HTTP. URI: https://chainrpc.com, Method: eth_estimateGas
DEBUG:urllib3.connectionpool:https://chainrpc.com:443 "POST / HTTP/1.1" 200 68
DEBUG:web3.providers.HTTPProvider:Getting response HTTP. URI: https://chainrpc.com, Method: eth_estimateGas, Response: {'jsonrpc': '2.0', 'id': 7, 'result': '0x1e140'}
DEBUG:web3.RequestManager:Making request. Method: eth_sendRawTransaction
DEBUG:web3.providers.HTTPProvider:Making request HTTP. URI: https://chainrpc.com, Method: eth_sendRawTransaction
DEBUG:urllib3.connectionpool:https://chainrpc.com:443 "POST / HTTP/1.1" 200 115
DEBUG:web3.providers.HTTPProvider:Getting response HTTP. URI: https://chainrpc.com, Method: eth_sendRawTransaction, Response: {'jsonrpc': '2.0', 'id': 8, 'result': '0xf4afcf1304d3c55cf045270e8b4039fd4ba296b4612e83a39d04bfc0de0e7e97'}
DEBUG:web3.RequestManager:Making request. Method: eth_getTransactionReceipt
DEBUG:web3.providers.HTTPProvider:Making request HTTP. URI: https://chainrpc.com, Method: eth_getTransactionReceipt
DEBUG:urllib3.connectionpool:https://chainrpc.com:443 "POST / HTTP/1.1" 200 63
DEBUG:web3.providers.HTTPProvider:Getting response HTTP. URI: https://chainrpc.com, Method: eth_getTransactionReceipt, Response: {'jsonrpc': '2.0', 'id': 9, 'result': None}
DEBUG:web3.RequestManager:Making request. Method: eth_getTransactionReceipt
DEBUG:web3.providers.HTTPProvider:Making request HTTP. URI: https://chainrpc.com, Method: eth_getTransactionReceipt
DEBUG:urllib3.connectionpool:https://chainrpc.com:443 "POST / HTTP/1.1" 200 64
DEBUG:web3.providers.HTTPProvider:Getting response HTTP. URI: https://chainrpc.com, Method: eth_getTransactionReceipt, Response: {'jsonrpc': '2.0', 'id': 10, 'result': None}
DEBUG:web3.RequestManager:Making request. Method: eth_getTransactionReceipt
DEBUG:web3.providers.HTTPProvider:Making request HTTP. URI: https://chainrpc.com, Method: eth_getTransactionReceipt
DEBUG:urllib3.connectionpool:https://chainrpc.com:443 "POST / HTTP/1.1" 200 64
DEBUG:web3.providers.HTTPProvider:Getting response HTTP. URI: https://chainrpc.com, Method: eth_getTransactionReceipt, Response: {'jsonrpc': '2.0', 'id': 11, 'result': None}
DEBUG:web3.RequestManager:Making request. Method: eth_getTransactionReceipt
DEBUG:web3.providers.HTTPProvider:Making request HTTP. URI: https://chainrpc.com, Method: eth_getTransactionReceipt
DEBUG:urllib3.connectionpool:https://chainrpc.com:443 "POST / HTTP/1.1" 403 None
DEBUG:web3.providers.HTTPProvider:Making request HTTP. URI: https://chainrpc.com, Method: eth_getTransactionReceipt
DEBUG:urllib3.connectionpool:https://chainrpc.com:443 "POST / HTTP/1.1" 403 None
DEBUG:web3.providers.HTTPProvider:Making request HTTP. URI: https://chainrpc.com, Method: eth_getTransactionReceipt
DEBUG:urllib3.connectionpool:https://chainrpc.com:443 "POST / HTTP/1.1" 403 None
DEBUG:web3.providers.HTTPProvider:Making request HTTP. URI: https://chainrpc.com, Method: eth_getTransactionReceipt
DEBUG:urllib3.connectionpool:https://chainrpc.com:443 "POST / HTTP/1.1" 403 None
DEBUG:web3.providers.HTTPProvider:Making request HTTP. URI: https://chainrpc.com, Method: eth_getTransactionReceipt
DEBUG:urllib3.connectionpool:https://chainrpc.com:443 "POST / HTTP/1.1" 403 None

requests.exceptions.ConnectionError: HTTPSConnectionPool(host='chainrpc.co', port=443): Max retries exceeded with url: / (Caused by NewConnectionError('<urllib3.connection.HTTPSConnection object at 0xfff2c5f42b10>: Failed to establish a new connection: [Errno 111] Connection refused'))

it's possible to reduce number connection ?

[pacrob]

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