Valid Link

Is my reciprocal link valid

[lostdog]

How or what can I use to check to see if our link is valid (not cloaked in any way)?

I am suspicious of one site that we cross promote with.

Thanks in advance!

[lostdog]

I have checked with M6.NET Link Checker. It show that the link cant be found. I see it and it works. I think it is hidden from the serps using JavaScript. Can anyone help me look at this to see if I am correct? Just want to know so I can approach our partner with all the information I can.