Network port
Port 443
- Port 443
- https
- System (well-known)
- Encrypted
Port 443 is registered to https: Web traffic over TLS, and HTTP/3 over QUIC on UDP. It runs over TCP/UDP and falls in the system (well-known) range.
Service
Port number443
IANA service namehttps
Usually runsWeb traffic over TLS, and HTTP/3 over QUIC on UDP
TransportTCP/UDP
Encrypted by defaultYes
Range and representation
IANA rangeSystem (well-known)assigned by IANA; binding needs privilege on Unix
Needs privilege to bindYes on Unixports below 1024 need root or CAP_NET_BIND_SERVICE
Hexadecimal0x01BB
Binary0000000110111011
Bits needed9
Highest possible port65,535the field is 16 bits wide
Keep nerding
Every link below is a page Nerdulator can generate from what it already knows about this value.
Nearby well-known ports
Read another way
Nerdulate something else
Nothing in mind? Surprise me · today’s page