You need to add "pointblue.ph" to www.pointblue.ph's list of allowed domains on the server. Once you do that you can change the DNS of pointblue.ph to be a CNAME for storage.l.googleusercontent.com.
Here's how you tell if this is done correctly:
# nc www.pointblue.ph 80
GET / HTTP/1.1
Host: pointblue.ph
HTTP/1.1 404 Not Found
<other response headers from the server>
Once this is setup the following will happen:
# nc www.pointblue.ph 80
GET / HTTP/1.1
Host: pointblue.ph
HTTP/1.1 200 OK
If you try setting Host: www.pointblue.ph you'll see your webpage's html.
If you're worried this might not work correctly, there's something easier you can probably setup. Instead of the above, you can also redirect pointblue.ph to www.pointblue.ph. I don't know how to set this up with Google (Pages?), but almost every kind of webhost account has this ability. For a professional website you'll need the website for pointblue.ph to give a "301" or "302" redirect, which will quickly and transparently redirect the browser to load the www.* site instead.
It'd probably be worth getting a non-google hosted account if you can't set this up with Google's hosting.