To make a good phishing page, you gotta clone the site perfectly and use a sneaky domain that looks real. SSL is a must so people don’t get suspicious. The backend needs to quietly grab credentials without errors. Also, knowing how to send emails that actually land and don’t get caught in spam is key. It’s all about blending solid tech with smart social engineering
I have had good luck with Modlishka back when I was in the game . It's on GitHub. Really easy to set up... evilginx2 is also good but a little tricky to set up.
Make sure you're also testing everything in a controlled environment before going live that includes how the page behaves on mobile vs desktop, how fast it loads, and how it responds to real user input. Some sites use hidden fields, JavaScript challenges, or timing checks that can break your phish if you miss them. Also, don't sleep on exit strategy: know how to rotate domains, pull down fast if burned, and manage logs safely so you don’t leave trails.