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Thread: DNS Issues

  1. #1

    DNS Issues

    This is the first time I come across this issue and frankly don't know how to solve it despite my experience..
    I received a complaint from some of my clients, stating that they can't connect to their site because "it is not online"

    Now, the site works perfectly from my PC (both on IE and firefox), I've checked its availability on, and it's being spidered by google, which clearly means it is online

    However, those clients' ISPs won't let them access the site for some unknown reason...I believe it's some DNS issue (probably they refuse to cache IPs from the country the sites are hosted on, which is Holland for the record)

    Is there anything I can do, DNS wise, to solve the issue? It's getting frustrating because they think I'm not doing my work and I can't just tell them "your ISP sucks"..
    Tintu is a freelance content writer.
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  2. #2
    Join Date
    Mar 2003
    Have you run the domain through a DNS checking service: ... any errors?
    Patrick William | RACK911 Labs | Software Security Auditing
    400+ Vulnerabilities Found - Quote @ - Security notices for the hosting community.

  3. #3
    Join Date
    Mar 2008
    Can also have them do a traceroute to the server IP and see where it is failing.. maybe it is not making it out of their house?
    Currently hosting with Big Brain Global Networks

  4. #4
    Join Date
    May 2006
    New Zealand
    As Michelle said, get them to do a traceroute (or you trace to them) or a nslookup.

    If their ISP wasn't caching then the lookup will still succeed, just would take a couple milliseconds longer.
    █ | Brad - Hoopla Hosting - Email or add me to Gtalk! brad [at]
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  5. #5
    Join Date
    Feb 2005
    Quote Originally Posted by Patrick View Post
    Have you run the domain through a DNS checking service: ... any errors?
    This. Are "all" nameservers on the same server? Intodns will warn you about that or other problems.

    "Some problems are so complex that you have to be highly intelligent and well informed just to be undecided about them." - Laurence J. Peter

  6. #6
    Join Date
    Jan 2011
    Your administrator will be solve your problem
    The Game is Over

  7. #7
    Join Date
    Dec 2002
    chennai , tamil nadu , IN
    Ask you clients to try out opendns and see whether they are able to open the websites ?
    Chris, Developer/Programmer,
    Php laravel developers,
    Ruby on Rails developers,

  8. #8
    Join Date
    Sep 2002
    Top Secret
    Quote Originally Posted by Patrick View Post
    Absolutely! I recommend this to my clients every time they have issues like this. Moreso, I do the lookup for my clients and tell them what's wrong.
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