Users running a non-download version of Vanilla (pulled from github), on branch release/2019.016 or master from the last 2 weeks should upgrade to release/2019.017 or latest master for security reasons. Downloaded official open sources releases are not affected.

Forum is running super slow - any troubleshooting ideas?

I've been running this forum on Vanilla for probably over 10 years.

In switching over to https the website started running real slow. I tried everything I could think of and have upgraded following instructions but I can't figure out why it runs slow.

Any idea on how I might fix it or even why it runs slow?


Perry, 44


  • If you have firefox on desktop or laptop, press f12 then reload your site, you have all sorts of problems with 301's 404's and scripts.

  • Sorry click network tab after f12 compare your site to this site, this is all green 200

  • R_JR_J Cheerleader & Troubleshooter Munich Moderator

    That was exactly the right approach.


    In the head of your site you find that piece of code:

    <script type="text/javascript">
    document.write('<scr'+'ipt src="//"><\/scr'+'ipt>');

    The result is this:

    That advertising service is breaking your sites performance

  • what R_J said

    That advertising service is breaking your site's performance

    In web poetry ...

    That devastating service is marring your site's brilliance

    @LeftBrain I just turned off JavaScript on my browser and your site proves faster than my clicking speed ....

    Now, go do great things ...

  • phreakphreak Vanilla*APP (White Label) & Vanilla*Skins Shop MVP
    edited January 3

    As said there are several scripts in place that slow down your forums performance. On top of that a faster server, CSS Minification ( and other OnPage SEO efforts could help speed it up.

    Get more information on whats slows down your site with Google Pagespeed Insights or

    • VanillaAPP | iOS & Android App for Vanilla - White label app for Vanilla Forums OS
    • VanillaSkins | Plugins, Themes, Graphics and Custom Development for Vanilla
  • Ah ha! That fixed it. Thank you so much! Blasted ad service.

  • Try can be following reasons -

    • Internet is running slow
    • Browser is not running properly
    • Site is slow
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