Does Cloudflare provide Portmapping?

I use Cloudflare.
I would like to do portforwarding from the port of 80 to other ports.

How can I do that?

Please explain the procedure for portforwarding with Cloudflare specifically and in detail.

Cloudflare does not provide port forwarding.

The closest you can get if if you only support HTTP on port 80 on the origin, Cloudflare in Flexible mode (not recommended) will forward traffic from HTTPS on 443 to your origin using HTTP on port 80.

What are you trying to do?

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Thank you for your answer. It was helpful.

As @michael already mentioned Cloudflare would not support that out of the box. However you should be able to implement a custom solution using Workers. This would be a paid feature and would require additional code from your side.

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That should work only starting from one of the standard ports at Cloudflare, going to a custom one.

Port mapping from any port to any other port is Enterprise only, with Spectrum.

Of course, but the OP referred to port 80.

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maybe this?

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