The problem
Proxy plans do not fit a normal product grid. A single offering varies by proxy type, geographic location, bandwidth allowance and subscription term — which means the same product can have dozens of valid configurations, each at a different price.
On top of that, the economics only work if delivery is instant. A customer who pays at 3am and waits until morning for credentials opens a support ticket, and support volume is what destroys margin in this niche.
What I built
A plan matrix that lets a customer narrow by type, location, bandwidth and term without ever landing on an invalid combination, backed by a MySQL schema that models configurations as first-class rows rather than as product variants bolted onto a catalogue.
Stripe handles checkout, including subscription plans and renewals. The webhook that confirms payment is also what triggers credential provisioning and the confirmation email through PHPMailer — so payment and delivery are a single automated transaction rather than two steps with a human in between.
An admin panel covers inventory, orders and customer records, so the client runs the business without needing me.
Decisions worth explaining
I built this in PHP rather than a JavaScript framework because it runs on the shared hosting the client already paid for. A Node deployment would have tripled their hosting cost to solve a problem they did not have.
Payment confirmation drives provisioning through the Stripe webhook rather than through the browser redirect. A customer closing the tab after paying is common, and a redirect-driven flow would have left them charged and empty-handed.
The site is multi-page rather than a single-page app, with dedicated landing pages per use case, so each one can rank independently for the search that matches it.
Want something like this?
If you are looking at this because you need the same thing built, send me the brief. You will get a reply within one business day and a fixed-scope quote before anything starts.