On Sat, Aug 1, 2009 at 11:21 AM, Alan McKinnon<[email protected]> wrote:
> On Saturday 01 August 2009 16:53:08 Paul Hartman wrote:
>> Hi,
>>
>> For some reason, YouTube doesn't work for me in some web browsers. It
>> acts like the hostname is not found. When I do host "www.youtube.com"
>> lookups and tcptraceroute to port 80 and everything else I have tried
>> to diagnose it seems to work just fine. I'm not using a proxy, I don't
>> have youtube in my hosts file, and I haven't encountered this problem
>> with any other website, including all of Google's other sites which I
>> use frequently. I'm totally baffled.
>>
>> Loads perfectly fine in:
>> lynx
>> links (text and graphical mode)
>> Opera
>>
>> Does not load at all in:
>> Seamonkey
>> Konqueror
>> Firefox
>
> Those three browsers can all use the same plugins, I'm not sure about the
> first three. I'd be checking for stuff that works like AdBlock. I especially
> know of extensions that block YouTube

To add more confusion: I just tried accessing YouTube over Tor from
the very browser in which it refuses to work normally and it loaded
fine. So I am leaning heavily towards this being an ISP issue. The
fact that traceroute shows no errors really makes me wonder if my ISP
(a Cable TV provider) is intentionally blocking YouTube (their
competition?). But only for certain browsers? It doesn't make any
sense.

Following that thought -- I wonder if there is a special YouTube
server for my ISP and the standard/outside YouTube server farm is
blocked? I've read about Google hosting servers at or near major ISPs
to reduce the number of hops, but have never heard anything about my
ISP doing it. I do not use my ISP's DNS servers, so I could very well
be trying access a "different" YouTube. I guess I will have to do some
lookups on their servers and compare the results.

My ISP's DNS servers have 3 strikes against them:

1. It is slow, slow, slow, slow, slow... and did I mention slow? :)
2. They have previously sold user's DNS/browsing history to
advertisers. They claim to have stopped, but...
3. They "hijack" DNS, making every invalid address resolve to an
address anyway, which when viewed in a web browser goes to an "error"
page (full of advertisements and "sponsored links"). You never know if
a hostname is really invalid or not, which makes troubleshooting
non-HTTP connections interesting.

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