Home | Internet tools | Link to us 12345

TCP port checker


TCP port checker (TCP port tester) is an online TCP client that checks TCP server connectivity and accessibility from the Internet. It can be used to check an arbitrary tcp port on a remote server. TCP port checker attempts to establish a TCP connection from our ip address (IPv4:, IPv6: 2600:3c00::f03c:91ff:fe67:aa7c). If connection is successful you should be able to see it in the server logs. Below are the most commonly used tcp ports:

21FTP (File Transport Protocol) - file storage and retrieval
22SSH, SFTP - secure shell and SSH based FTP
23Telnet - non-secure shell
25SMTP (Simple Mail Transfer Protocol) - sending and receiving email messages
53DNS (Domain Name System) - mapping from hostname to ip and vice versa
80HTTP (HyperText Transfer Protocol) - main protocol of world wide web
156SQL - relational database
443HTTPS - secure HTTP

Please let us know if you have any suggestions on how to make this website better.

Choose language: Deutsch English Español Français Italiano Nederlands Polski Português Русский 中文 日本語 한국어
By using this website, you signify your acceptance of Terms and Conditions and Privacy Policy.
© 2017 InfoByIP.com All rights reserved.