Having a performance problem with domain mapping

I have a multisite installed on http://liveo2.com using domain mapping, where the root server is http://whnlive.com

When I access any liveo2.com page, there is a very long delay that occurs during the dm redirect. The redirect. (suggested example: http://liveo2.com/protocols/quick-procedure/)

imposes a 3+ second delay on the load time via the link: http://whnlive.com/?dm=d1e162d48c02672ec2c1a0eba561eafc&action=load&blogid=5&siteid=1&t=940294429&back=http%3A%2F%2Fliveo2.com%2F

The timeline view of gtmetrix shows the server is using an invalid reference to a stale domain name: http://wp.me/3uuKP (which points to a stale backup server at http://whnlive.net)

I have searched the entire DB and the code base for the redirect string. http://wp.me/3uuKP does NOT occur in the DB - anywhere. Since it is not local - I cannot fix it.

Where in the heck is this string coming from?
Specifically - how can I correct it?

I can only assume that since wpmudev retains a reference to both sites, whnlive.com, and whnlive.net, it must be coming from your side...

  • squibm
    • Site Builder, Child of Zeus

    Hi Patrick.
    Thanks so much for your aid. I did have the shortlinks enabled in jetpack - disabled & cleared cache.

    A repeat test still shows the delay as well as the erroneous link still in the header.
    Here's the report text:

    Fri, 07 Mar 2014 18:26:18 GMT
    Apache/2.2.21 (Unix) mod_ssl/2.2.21 OpenSSL/0.9.8e-fips-rhel5 DAV/2 mod_auth_passthrough/2.1 mod_bwlimited
    /1.4 FrontPage/
    PHP/5.2.17 Vary Cookie
    Link <http://wp.me/3uuKP>; rel=shortlink
    timeout=5, max=100
    text/html; charset=UTF-8

  • Patrick
    • Support Monkey

    Hi again @squibm

    Terribly sorry about the delay here. Concerns for family health issues have kept me away from the forums quite a bit these last few weeks.

    Do you still require assistance with this issue, or have you managed to figure out what was causing the delay?

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