How to increase the hit rate on my template?

Use good looking domain (try to create one as similar as possible to the real one) forexample you can use sites.google.com for template such as google see tutorial on how to setup sites.google.com

For mass-spam you can use a landing page before the real one for-example for amazon you can create a discount page that requires to log-in to the amazon (redirect them to your amazon template so you'll receive their log-in credentials)

Test proxies before spreading, some proxies can block requestes or they're simply lame, do some test on different regions (change vpn server on the device that you're testing to any other region). Also look for their reputation if it's good or not, you can use ipscore as a tool to measure it.