Sorry, you have been blocked You are unable to access bitcointalk.org?

[Rgram]

I have experienced this error message twice and what I do is to clear my catche and everything works back to normal. I don't know about you. Maybe you could try that and see if it would be okay. Sometimes it might be CloudFlare issues sometimes it might be poor network coverage and sometimes it could be that maintenance or upgrade is likely going on at that moment.

That’s definitely a pathway I do make reference to when I have my browser jammed with these cloudflare issues given that, the catche often gets override with data and information that is supposed to help in easy browsing and surfing of the web given how frequent you visit certain pages and sites but sometimes, it triggers the cloudflare and can lead to a disruption in connection which results in certain responsive codes as seen in OP. Clearing the catche sets you up for a restart.

[GeorgeJohn]

I experienced this couple days ago and it was once it occurs and it normalise, sometimes I feel it's a poor signal from a browser that caused these, because immediately I refresh my browser I had access to bitcointalk,
So when their's a poor signal within your environment you can experienced such, although it doesn't really occur every time, sometimes it occurs once in awhile...but as it happens and different people is complaining about it, that means it's a fault from the cyber..And it needs to look unto.

[Byebyebtc]

You are not the first and you wont be the last. Although I have not experience this before, maybe because I have a strong internet connection.
Many error message I have seen from member of the forum, and each error message have a reason but this one looks different.
No error code which makes it difficult to identify the cause of it.
This could just be another poor internet interruption.