Port 1001Web Push

HTTP Web Push traffic between applications, push services, and web browsers.

transport: tcp
in transit: encrypted
assignment: official
risk: 2/10
lookups: 0

also known as HTTP Web Push

1 other service is registered on port 1001. compare all 2 →

Technical Details

what runs on :1001

Web Push uses HTTP semantics over a TCP connection, normally protected by TLS and commonly implemented with HTTP/2. Application servers send authenticated requests to subscription endpoints held by a push service, while payloads are encrypted for the recipient browser; Web Push deployments most commonly use TCP 443, although this assignment identifies TCP 1001 for the service.

Security Information

exposure of :1001

risk score

2/ 10safe

routine exposure. this port is rarely the way in on its own — keep it patched and logged and move on.

web services averages 3.6 across 132 ports — this one sits 1.6 below.

in transit

encrypted

payloads are protected on the wire

assignment

official

registered with iana for this service — scanners fingerprint it by number

reachable over

tcp

every listening transport is another surface to filter at the edge

security overview

A normally deployed Web Push service is encrypted and should authenticate senders, validate subscription endpoints, and apply rate limits. Internet exposure is not inherently dangerous, but misconfigured endpoints can enable notification abuse, resource exhaustion, or leakage of subscription metadata; TCP 1001 should not be exposed unless it is intentionally hosting this service.

Record

iana registry entry

port: :1001
service: Web Push
transport: TCP
encryption: tls / encrypted
assignment: iana registered
risk: 2/10safe
category: Web Services
usage: This port is assigned for HTTP Web Push, allowing application servers and push services to exchange browser notification messages. In practice, Web Push is more commonly encountered over HTTPS on TCP port 443; TCP 1001 is an uncommon deployment choice.
lookups: 0rank 994
added: 2026-08-31
updated: 2026-08-31
references: IANA service name registry — port 1001
RFC 8030

Something wrong?

This record is maintained by the engineers who use port 1001. Every field on it is editable — change what's wrong, say how you know, and a reviewer publishes it, usually within a minute. Last touched 2026-08-31.

01edit any field on a page of its own
02a model checks it for accuracy and spam
03clean and confident goes live immediately

edit this record →back to the registry

Related Ports

all 132 in web services →

the 8 most looked-up other ports in web services — 132 ports carry that label.

port	service	proto	category	risk	views
:8888	Sun Answerbook & Alt HTTP	TCP	Web Services	caution	123.9k
:8000	Intel Remote Desktop / Alternate HTTP Port	TCP	Web Services	safe	84.3k
:8888	NewsEDGE	TCPUDP	Web Services	caution	83.3k
:8888	HTTP Alternative Port	TCP	Web Services	caution	76.5k
:8888	GNUmp3d Streaming HTTP	TCP	Web Services	caution	76.3k
:9080	Groove RPC	TCPUDP	Web Services	caution	70.8k
:8881	Atlasz Secure Server	TCP	Web Services	caution	67.6k
:80	HTTP	TCPUDP	Web Services	caution	67.3k

risk mix of the 8 listed

safe13%
caution88%

0 of 8 encrypted

Port :1001Web Push

Technical Details

Security Information

Related Ports

Port 1001Web Push