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Limits & technical details

Outgoing ports open on shared hosting

Which ports your scripts can connect out on from our shared servers.

1 min read Updated

For security, shared hosting servers only allow outgoing connections on the ports your scripts commonly need. Connections on other ports are blocked.

PortUsed for
43WHOIS lookups
53DNS
80HTTP
110POP3
143IMAP
443HTTPS — APIs, payment gateways
1433Microsoft SQL Server
3306MySQL
5432PostgreSQL
7070, 8080Alternative HTTP

Not every port is open on every platform — Windows and Linux shared servers differ. If a script needs to reach a service on a port that is blocked, open a ticket with the port and the service.

Note

This list is about connections your site makes. Visitors reaching your site use ports 80 and 443 as usual. A VPS or dedicated server has no such limit — you control its firewall.

Still stuck?

Open a ticket from your control panel and say which step you reached. A screenshot of what you see is the fastest way to show us.

Open a ticket Search all answers

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Tell us what you are trying to do rather than what went wrong, and we will tell you whether it is something we can fix from here.

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