[devindotcom]

I just tried pinging twitter with this tool, the turkey server seems to work:

http://cloudmonitor.ca.com/en/ping.php?vtt=1395356295&vargho...

but china, egypt, and interestingly panama don't. I'd love to report on this but it's hard to prove this kind of thing. any ideas? (i'm also contacting twitter)

edit: here's my story -

http://www.nbcnews.com/tech/social-media/twitter-blocked-nat...

please let me know if you see anything wrong. (we're aware of the turkish character issues...sigh)

[mrtksn]

Hi, The method for blocking websites in Turkey is through ISP's DNS servers. So when you don't use a Turkish ISP DNS server you are all good with most of the blocked sites. Some websites, especially popular porn sites are blocked through the IP. In such cases you need a VPN or proxy.

The tool you are using to check Twitter servers probably don't use a Turkish DNS server.

If you don't believe, check the website status from the Informational Technology and Communication presidency of Turkey website: http://eekg.tib.gov.tr/

The court orders are displayed both in English and Turkish.

[devindotcom]

Thanks for the information, I'll try to include this in my report.

[mrtksn]

You are welcome. If you have any questions feel free to ask, you can reach me by twitter too: @mrtksn

this is how the DNS Look-up for twitter looks like at the moment: http://i.imgur.com/yKmmDYc.jpg

I used TTNET's DNS server for this. It's the biggest ISP in the country.

[yigitdemirag]

~$ traceroute www.twitter.com

traceroute to www.twitter.com (195.175.254.2), 30 hops max, 60 byte packets

1 192.168.43.1 (192.168.43.1) 3.008 ms 5.479 ms 5.466 ms

2 10.182.5.82 (10.182.5.82) 395.945 ms 395.939 ms 395.924 ms

3 10.182.5.81 (10.182.5.81) 392.815 ms * 392.941 ms

4 10.182.5.234 (10.182.5.234) 395.846 ms 419.025 ms 419.020 ms 5 10.182.5.237 (10.182.5.237) 419.008 ms * 418.972 ms

6 46.234.2.9 (46.234.2.9) 418.958 ms 377.874 ms 798.912 ms 7 88.255.35.29.dynamic.ttnet.com.tr (88.255.35.29) 1208.763 ms 1208.767 ms 1208.767 ms

8 * ulus-t2-1-ulus-t3-1.turktelekom.com.tr.203.212.81.in-addr.arpa (81.212.203.66) 1208.713 ms 1208.699 ms

9 ulus-t3-6-ulus-t2-1.turktelekom.com.tr.29.212.81.in-addr.arpa (81.212.29.99) 1212.270 ms 1212.279 ms 1212.280 ms

10 * * *

This is the blocking point.

[eknkc]

It is a DNS based block. If that server uses a custom dns or has different caching rules etc, it would not be affected from the block.