Look at the address below. What's the frame? Solution

Look at the following address, what frame is it for?
Http://www.insun-china.com/index.php?mod=about&ac=jianjie
Looking at a website URL seems to be the way to access the entire site through the index.php value. Style and ci somewhat like that but certainly not ci,ci should be to the following this Http://www.insun-china.com/index.php/about/jianjie
Is the above address an MVC framework? What frame could it be?
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thinkphp
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It should be yii.
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Yii default URL format
Http://hostname/index.php?r=ControllerID/ActionID

thinkphp default URL format
Http://hostname/index.php?m=modelname&a=actionname

You this is
Http://www.insun-china.com/index.php? mod=about& ac=jianjie
More in the mall, specifically which paragraph, not very clear, no use

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It could be a mall.
It could be a framework of your own development.
Anyway, these are all definable.
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Looks like a thinkphp style.

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