TCP/UDP Port Finder

Enter port number (e.g. 21), service (e.g. ssh, ftp) or threat (e.g. nimda)
Database updated - March 30, 2016

Search results for "443"

Port: 443/SCTP
443/SCTP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • https
    HTTPS
    IANA
Port: 443/TCP
443/TCP - Known port assignments (9 records found)
  • Service
    Details
    Source
  •  
    HTTPS (Hypertext Transfer Protocol over SSL/TLS) (Official)
    WIKI
  • https
    HTTP protocol over TLS SSL
    SANS
  • https
    Secure Sockets Layer (SSL, or "HTTPS"). TLS websites, iTunes Store, FaceTime, Game Center, MobileMe (authentication, iDisk, iDisk Sync, and MobileMe Sync), AirPlay, OS X Lion Internet Restore, Profile Manager.
    Apple
  • https
    http protocol over TLS/SSL
    IANA
  • threat
    [threat] W32.Kiman
    Bekkoame
  • trojan
    [trojan] Slapper. Backdoor / Worm / IRC trojan / Proxy / Distributed DoS tool. Works on Unix (Linux - SuSe, Mandrake, RedHat, Slackware, Debian, Gentoo), together with Apache Web server. Aliases: Linux.Slapper.Worm, Apache/mod_ssl Worm, PUD, ELF/Slapper
    Simovits
  • threat
    [threat] Civcat
    Bekkoame
  • threat
    [threat] Tabdim
    Bekkoame
  • threat
    [threat] W32.Kelvir
    Bekkoame
Port: 443/UDP
443/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • https
    http protocol over TLS/SSL
    IANA

About TCP/UDP ports

TCP port 443 uses the Transmission Control Protocol. TCP is one of the main protocols in TCP/IP networks. TCP is a connection-oriented protocol, it requires handshaking to set up end-to-end communications. Only when a connection is set up user's data can be sent bi-directionally over the connection.
Attention! TCP guarantees delivery of data packets on port 443 in the same order in which they were sent. Guaranteed communication over TCP port 443 is the main difference between TCP and UDP. UDP port 443 would not have guaranteed communication as TCP.
UDP on port 443 provides an unreliable service and datagrams may arrive duplicated, out of order, or missing without notice. UDP on port 443 thinks that error checking and correction is not necessary or performed in the application, avoiding the overhead of such processing at the network interface level.
UDP (User Datagram Protocol) is a minimal message-oriented Transport Layer protocol (protocol is documented in IETF RFC 768).
Application examples that often use UDP: voice over IP (VoIP), streaming media and real-time multiplayer games. Many web applications use UDP, e.g. the Domain Name System (DNS), the Routing Information Protocol (RIP), the Dynamic Host Configuration Protocol (DHCP), the Simple Network Management Protocol (SNMP).
TCP vs UDP - TCP: reliable, ordered, heavyweight, streaming; UDP - unreliable, not ordered, lightweight, datagrams.
Your IP address
Your are from United States54.224.247.75