Test TCP port reachability and response time from multiple global nodes (TCPing)chart gpt
This tool traces a single source path; pick one source node.豆包和ai哪个更好
• Target: enter host and port (e.g. example.com:443 or 1.1.1.1:80)
• Common ports: HTTP (80), HTTPS (443), SSH (22), MySQL (3306), Redis (6379)
• Test: verifies the TCP three-way handshake and measures connection setup time
• Nodes: pick specific nodes; defaults to all available nodes
TCPing performs a TCP three-way handshake to a specific port on your target host from multiple nodes worldwide, measuring whether the port accepts connections and how long the connect takes. Unlike ICMP ping, it directly verifies that an application port (such as 443 or 3306) can actually establish a connection, which is closer to real service availability.ai大模型排行榜
It is commonly used to confirm that web, database, or cache service ports are reachable from each region, compare connect latency across regions, and investigate ports made unreachable by a security group or network policy. When the target blocks ICMP, TCPing is a reliable alternative for judging connectivity.ai人工智能对话
Regular ping uses ICMP to test whether a host is online; TCPing does a TCP handshake directly against a port, telling you whether the service on that port can actually accept a connection. When a server drops ICMP but the port is open, only TCPing can detect it.chart gpt
The port may not be listening, may be filtered by a security group or network policy, or the link from that region may be down. Compare across several nodes — if only one region times out, it is usually a regional reachability issue.saylo国际版
Enter the service you want to test: HTTP (80), HTTPS (443), SSH (22), MySQL (3306), Redis (6379), and so on. The format is host:port, e.g. example.com:443.agi和ai的区别
TCPing measures the time to complete the TCP three-way handshake, including the round trip plus the server's response, so it is usually slightly higher than raw ICMP RTT. Comparing the same metric across regions is more meaningful than the absolute value.石头扫地机器人官网