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Considered “18+”

Considered “18+”

This is the nice item ever.

Vodafone UK has taken it on themselves to make the world better by marking this Website (daniel.haxx.se) “adult content”. I suppose in order to protect the children.

It was first reported to me on May 2, with this screenshot from a Vodafone customer:

And later followed Up with some more details from another user in this screenshot

Customers can opt out of this “protection” and then apparently Vodafone will no longer block my site.

How

I was graciously given more logs (my copy) showing DNS resolves and curl command line invokes.

It shows that this filter is for this specific host name only, not for the entire haxx.se domain.

It also shows that the DNS resolves are unaffected as they returned the expected Fastly IP addresses just fine. I suspect they have equipment that inspects outgoing traffic that catches this TLS connection based on the SNI field.

As the log shows, they then make their server do a TLS handshake in which they respond with a certificate that has daniel.haxx.se in the CN field.

The curl verbose output shows this:

* SSL connection using TLSv1.2 / ECDHE-ECDSA-CHACHA20-POLY1305
* ALPN, server did not agree to a protocol
* Server certificate:
* subject: CN=daniel.haxx.se
* start date: Dec 16 13:07:49 2016 GMT
* expire date: Dec 16 13:07:49 2026 GMT
* issuer: C=ES; ST=Madrid; L=Madrid; O=Allot; OU=Allot; CN=allot.com/emailAddress=info@allot.com
* SSL certificate verify result: self signed certificate in certificate chain (19), continuing anyway.
> HEAD / HTTP/1.1
> Host: daniel.haxx.se
> User-Agent: curl/7.79.1
> Accept: */*
>

The allot.com clue is the technology they use for this filtering. To quote their Website, you can “protect citizens” with it.

I am not unique, clearly this has also hit other Website owners. I have no idea if there is any way to appeal against this classification or something, but if you are a Vodafone UK customer, I would be happy if you did and maybe linked me to a public issue about it.

Update

I was pointed to the page where you can request to unblock specific sites so I have done that now (at 12:00 May 2).

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About the author: Roxane

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