I wonder how you can sustain in long run?
You are using ddns free domain so you are unlikely to get approved by most ad networks.
Why don't buy a domain since it is really cheap nowadays, you can get it below $1.
0.005 btc is not a small amount, its like $58 at current btc price. Make sure you can get enough profit to pay your users.
I'm studding other alternatives to become more sustainable but need to build some traffic first.
For web domains, I'm checking that out. Depends on what will be the response of some networks.