Notes from real client work

Field notes & tutorials.

Hard-won lessons from shipping WHMCS modules, securing servers, and automating hosting businesses - written so you can apply them today.

46 articles · 27 categories · updated weekly

All articles 46 Resources 1 WHMCS 9 Security 3 IPTV 1 Business 1 Marketing 1 Development 7 Automation 1 Performance 1 Configuration 2 Technical 5 Design 1 Analytics 2 Billing 2 Tutorials 1 Integration 3 Security Advisories 1

WHMCS Hooks Guide: Extend Functionality Without Modifying Core Files

Stop editing WHMCS core files. After 10+ years building WHMCS systems, here is the working model for hooks — the 7 you will actually use, a real walkthrough, and the pitfalls that have cost me nights of sleep.

S Shahid Malla · Jan 4, 2026 · 14 min

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WHMCS Stripe Integration: The Setup I Run on Every Install

The Stripe integration walkthrough most guides skip the details of — picking the right module, account setup, webhooks (the part everyone misses), 3D Secure, recurring billing, and the test cycle before going live.

S Shahid Malla Jan 28 · 100

Billing 7 min

WHMCS Invoice Customization: Branded PDFs & Email Templates

Your invoice is the most-seen artifact in your billing. The practical guide to branded PDF templates, tax-compliant fields, customized invoice emails, and on-page invoice views.

S Shahid Malla Jan 22 · 98

WHMCS 7 min

WHMCS Domain Registrar Integration: The Working Setup

Configure WHMCS to sell domains end-to-end — registrar pick, API credentials, TLD pricing, nameserver templates, hosting bundles, and the renewal monitoring that prevents churn.

S Shahid Malla Jan 22 · 119

Development 8 min

WHMCS Custom Module Development: Picking the Right Type

The five WHMCS module types — provisioning, addon, gateway, registrar, reports — and a decision tree for picking the right one. With boilerplate for each.

S Shahid Malla Jan 20 · 137

Marketing 5 min

WHMCS Affiliate System: Build a Referral Program That Works

WHMCS ships an affiliate system most operators ignore. Set up right, it brings customers your marketing can't reach at predictable CAC. The setup, the recruitment, the fraud prevention.

S Shahid Malla Jan 16 · 83

WHMCS 6 min

WHMCS Reseller Hosting Setup: Start a Hosting Brand

Reseller hosting is the lowest-capital path to a hosting brand. The playbook — picking the upstream, white-labeling, configuring WHMCS, pricing for profit, and graduating to your own infrastructure.

S Shahid Malla Jan 15 · 84

Configuration 5 min

WHMCS Multi-Currency Setup: Accept Payments Globally

Selling across borders means selling in customers' currencies. The working multi-currency setup — base currency, manual per-currency pricing, gateway-per-currency, IP-based detection, tax handling.

S Shahid Malla Jan 14 · 74

Automation 7 min

WHMCS VPS & Cloud Server Provisioning

Selling VPS through WHMCS — the three architectures, provisioning modules per platform, IP pool management, OS templates, billing for usage, and the monitoring that prevents customer pain.

S Shahid Malla Jan 11 · 95

WHMCS 8 min

WHMCS cPanel Integration: Complete Configuration Guide

WHMCS + cPanel is the most common hosting stack on earth. Most installs are 80% correct. The remaining 20% — API tokens, package mapping, password sync, SSO, server groups — is where this guide focuses.

S Shahid Malla Jan 10 · 91

Development 6 min

WHMCS Client Area Customization: Make It Feel Like a Product

WHMCS client area looks like a billing system. The customization that pays back: faster paths to common tasks, a dashboard that surfaces what matters, mobile-ready UI.

S Shahid Malla Jan 9 · 103

Technical 7 min

WHMCS System Requirements & Best Server Setup

WHMCS official minimums are a floor, not a target. The real-world server spec for a hosting business — by customer count, with PHP / MySQL / OPcache / Redis / TLS configuration.

S Shahid Malla Jan 5 · 111

Development 14 min

WHMCS Hooks Guide: Extend Functionality Without Modifying Core Files

S Shahid Malla Jan 4 · 163

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