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Is imgur.com blocked?

alnicol
Newbie
Posts: 1
Registered: 24-10-2013

Is imgur.com blocked?

I'm trying to access imgur.com (popular image hosting site for reddit) and I'm getting 'cache' issues. This has nothing to do with DNS, as that is resolving fine. I can also access the site fine through my work VPN.
The requested URL could not be retrieved
While trying to retrieve the URL: http://www.imgur.com/
The following error was encountered:
    Unable to determine IP address from host name for www.imgur.com
The dnsserver returned:
    Server Failure: The name server was unable to process this query.
This means that:
The cache was not able to resolve the hostname presented in the URL.
Check if the address is correct.
Generated Thu, 24 Oct 2013 19:55:55 GMT by pcl-iwfcache03.plus.net (squid)

I assume this site is being blocked by plusnet, or it is a problem with their network?
23 REPLIES
Damfoose
Grafter
Posts: 40
Registered: 27-09-2007

DNS issues

Trying to get to imgur.com gives me the following
The requested URL could not be retrieved
While trying to retrieve the URL: http://imgur.com/gallery/1gWEAGO
The following error was encountered:
Unable to determine IP address from host name for imgur.com
The dnsserver returned:
Server Failure: The name server was unable to process this query.
This means that:
The cache was not able to resolve the hostname presented in the URL.
Check if the address is correct.
Generated Thu, 24 Oct 2013 19:49:36 GMT by pcl-iwfcache03.plus.net (squid)
So I bounce to my works PC and find I can hit the site with no issues all is it up sites say the site is working seems a problem at plusnet end even using other DNS servers has not helped ie set DNS to googles or opendns im still getting the same issue any ideas ?
Community Veteran
Posts: 38,460
Thanks: 1,027
Fixes: 62
Registered: 15-06-2007

Re: Is imgur.com blocked?

Tracert looks odd as it seems to double back on itself
Quote
C:\Users\Jim>tracert www.imgur.com
Tracing route to imgur.com [103.31.7.184]
over a maximum of 30 hops:
  1    25 ms    79 ms    99 ms  192.168.1.254
  2    41 ms    34 ms    35 ms  lo0-central10.pcl-ag01.plus.net [195.166.128.182]
  3    32 ms    33 ms    34 ms  link-a-central10.pcl-gw01.plus.net [212.159.2.160]
  4    32 ms    31 ms    34 ms  xe-10-0-0.pcl-cr01.plus.net [212.159.0.192]
  5    32 ms    32 ms    35 ms  ae2.pcl-cr02.plus.net [195.166.129.7]
  6    32 ms    33 ms    32 ms  po2.pcl-gw02.plus.net [195.166.129.43]
  7    33 ms    32 ms    32 ms  tun0.pcl-gw01.plus.net [212.159.2.105]
  8    33 ms    32 ms    45 ms  flowers2.servers.plus.net.uk [212.159.2.98]
  9    33 ms    32 ms    32 ms  xe-11-1-0.edge3.London2.Level3.net [212.187.201.209]
10    40 ms    39 ms    40 ms  ae-3-3.ebr1.Paris1.Level3.net [4.69.141.86]
11    40 ms    39 ms    39 ms  ae-91-91.csw4.Paris1.Level3.net [4.69.161.90]
12    39 ms    39 ms    68 ms  4.69.168.199
13    94 ms    43 ms    41 ms  NTT-level3-2x10G.Paris.Level3.net [4.68.63.118]
14    41 ms    41 ms    40 ms  ae-2.r21.parsfr01.fr.bb.gin.ntt.net [129.250.2.218]
15    59 ms    49 ms    49 ms  as-4.r22.amstnl02.nl.bb.gin.ntt.net [129.250.3.84]
16    51 ms    49 ms    50 ms  ae-2.r03.amstnl02.nl.bb.gin.ntt.net [129.250.2.211]
17    51 ms    48 ms    47 ms  xe-4-0-5.ar1.ams3.nl.nlayer.net [69.22.139.202]
18    *        *        *    Request timed out.
19  390 ms    *      374 ms  103.31.7.184
Trace complete.
Community Veteran
Posts: 5,109
Thanks: 465
Fixes: 17
Registered: 10-06-2010

Re: DNS issues

It's a "Plusnet classic" DNS issue, possibly the same as with www.netflix.com: https://community.plus.net/forum/index.php/topic,119405.0.html
Changing your computer's DNS server doesn't help in this case because it doesn't change the DNS server used by the IWF proxy.
Azagoth
Grafter
Posts: 618
Thanks: 3
Registered: 01-08-2007

Re: DNS issues

Having similar problems here.  Can't access both Imgur.com or 4chan.org.  Both are getting "Firefox can't find the server at ......." errors.
Moderator
Moderator
Posts: 18,511
Thanks: 1,806
Fixes: 222
Registered: 11-01-2008

Re: Is imgur.com blocked?

IWF strikes again..
Quote
Generated Thu, 24 Oct 2013 20:04:34 GMT by pcl-iwfcache02.plus.net (squid)

i've not seen this before with imgur and use it daily.

Customer / Moderator / If it helped click the thumb / If it fixed it click 'This fixed my problem'

Community Veteran
Posts: 38,460
Thanks: 1,027
Fixes: 62
Registered: 15-06-2007

Re: Is imgur.com blocked?

Two topics merged
Azagoth
Grafter
Posts: 618
Thanks: 3
Registered: 01-08-2007

Re: Is imgur.com blocked?

Getting this via cmd.
C:\>tracert www.imgur.com
Unable to resolve target system name www.imgur.com.
C:\>
Moderator
Moderator
Posts: 18,511
Thanks: 1,806
Fixes: 222
Registered: 11-01-2008

Re: Is imgur.com blocked?

it's fine off my vpn

Customer / Moderator / If it helped click the thumb / If it fixed it click 'This fixed my problem'

jonnybarnes
Dabbler
Posts: 24
Registered: 23-12-2010

Re: Is imgur.com blocked?

Same issue:
jonny@jonny-arch:~|⇒  nslookup imgur.com
Server: 208.67.222.222
Address: 208.67.222.222#53
Non-authoritative answer:
Name: imgur.com
Address: 103.31.7.184
Name: imgur.com
Address: 103.31.6.33
Name: imgur.com
Address: 103.31.6.34
Name: imgur.com
Address: 103.31.7.33
Name: imgur.com
Address: 103.31.6.35
Name: imgur.com
Address: 103.31.6.184
Name: imgur.com
Address: 103.31.6.36
Name: imgur.com
Address: 103.31.7.35
Name: imgur.com
Address: 103.31.7.31
Name: imgur.com
Address: 103.31.7.34
Name: imgur.com
Address: 103.31.7.32
Name: imgur.com
Address: 103.31.6.32
jonny@jonny-arch:~|⇒  tracepath imgur.com
1:  jonny-arch                                            0.173ms pmtu 1500
1:  192.168.1.254                                        0.637ms
1:  192.168.1.254                                        0.604ms
2:  192.168.1.254                                        0.798ms pmtu 1492
2:  lo0-central10.ptn-ag03.plus.net                      25.503ms asymm  3
3:  link-a-central10.ptn-gw01.plus.net                  16.191ms asymm  6
4:  xe-5-3-0.ptw-cr01.plus.net                          15.864ms
5:  ae1.pcl-cr01.plus.net                                46.270ms
6:  tun0.ptn-gw01.plus.net                              16.547ms asymm  5
7:  te2-1.gr9.plus.net                                  16.265ms asymm  5
8:  195.99.126.138                                      16.288ms asymm  6
9:  host213-121-193-136.ukcore.bt.net                    17.513ms asymm  6
10:  peer3-te0-3-0-14.telehouse.ukcore.bt.net            20.196ms asymm  7
11:  ae-3-3.ebr1.Paris1.Level3.net                        23.310ms asymm 12
12:  ldn-b5-link.telia.net                                18.404ms asymm  9
13:  4.69.168.71                                          24.009ms asymm 10
14:  hbg-bb2-link.telia.net                              103.868ms
15:  war-b2-link.telia.net                              111.296ms asymm 14
16:  as-4.r22.amstnl02.nl.bb.gin.ntt.net                  33.765ms asymm 14
17:  ae-2.r03.amstnl02.nl.bb.gin.ntt.net                  34.066ms asymm 14
18:  xe-4-0-5.ar1.ams3.nl.nlayer.net                      34.267ms asymm 12
19:  no reply
20:  no reply
21:  no reply
seasick
Newbie
Posts: 1
Registered: 24-10-2013

Re: Is imgur.com blocked?

Looks like there's a major DNS issue - common CDNs like http://cdn.sstatic.net/ are also not being resolved.
jonnybarnes
Dabbler
Posts: 24
Registered: 23-12-2010

Re: Is imgur.com blocked?

sstatic resolves just fine for me using opendns
cdebley
Newbie
Posts: 8
Registered: 01-09-2013

Re: Is imgur.com blocked?

Im getting the same for leagueoflegends.com, must be a dns issue
iannai
Dabbler
Posts: 13
Registered: 03-08-2012

Re: Is imgur.com blocked?

Just adding my voice to the thread - Imgur.com went down about 9pm and is still down but only through Plusnet - can access fine via work VPN.
The requested URL could not be retrieved
While trying to retrieve the URL: http://imgur.com/
The following error was encountered:
Unable to determine IP address from host name for imgur.com
The dnsserver returned:
Server Failure: The name server was unable to process this query.
This means that:
The cache was not able to resolve the hostname presented in the URL.
Check if the address is correct.
Generated Thu, 24 Oct 2013 20:25:43 GMT by pcl-iwfcache03.plus.net (squid)
HoboWithAShotgu
Dabbler
Posts: 16
Registered: 24-07-2013

Re: Is imgur.com blocked?

Seems alright now? Getting through fine.