Rad Web Hosting is pleased to announce the release of client-facing WHMCS WHOIS addon module.
Rad Web Hosting Announces Release of Client-Facing WHMCS WHOIS Addon Module
Rad Web Hosting is pleased to announce the release of its new client-facing WHMCS WHOIS Addon Module, a powerful and flexible extension designed to provide a secure, public-facing WHOIS lookup interface for WHMCS installations. This module enables hosting providers, domain registrars, and infrastructure operators to offer fast and reliable domain WHOIS queries directly from their WHMCS platform.
The module was developed to address a common need among hosting providers: offering a public WHOIS lookup tool that integrates seamlessly with WHMCS while maintaining performance, security, and administrative control.
With built-in caching, CAPTCHA protection, customizable WHOIS servers, and strict domain validation, the WHMCS WHOIS Addon Module delivers a modern and abuse-resistant solution for domain lookup services.
A Modern WHOIS Lookup Tool for WHMCS
The new addon introduces a clean and efficient WHOIS lookup interface that can be accessed by both clients and public visitors. Hosting providers can easily add a WHOIS lookup page to their WHMCS deployment, allowing users to query domain registration information without requiring login access.
Visitors can simply enter a domain in the standard format:
example.com
The module then performs a WHOIS query and returns the registry response directly within the WHMCS interface.
The public lookup page is accessible via:
https://yourdomain.com/index.php?m=client_whois
This makes it easy for providers to link the tool from their homepage, domain search pages, knowledge base, or marketing landing pages.
Designed for Security and Abuse Prevention
Public WHOIS services can easily become targets for automated abuse. To prevent this, the Rad Web Hosting WHOIS Addon Module includes several built-in safeguards.
Anonymous users are required to complete a CAPTCHA verification using WHMCS’s built-in CAPTCHA framework before performing a lookup. This allows the module to automatically support whichever CAPTCHA provider is configured within WHMCS, including:
- Google reCAPTCHA
- hCaptcha
- Cloudflare Turnstile
- WHMCS built-in CAPTCHA
Logged-in clients are exempt from CAPTCHA, allowing for a smooth user experience while maintaining protection against automated queries.
In addition, the module enforces strict domain validation rules, ensuring that only properly formatted domain names can be submitted.
Intelligent WHOIS Server Resolution
Different domain extensions use different WHOIS servers, and managing these differences can be complex. The Rad Web Hosting module solves this by implementing a flexible multi-layer WHOIS resolution system.
When a lookup is performed, the module resolves the correct WHOIS server using the following priority:
- Administrator-defined WHOIS server overrides
- Built-in WHOIS server mappings
- Automatic IANA referral lookup
This approach ensures compatibility across a wide range of domain registries while allowing administrators to customize WHOIS servers for specific TLDs when necessary.
Through the module’s admin interface, operators can easily add, edit, or disable WHOIS servers for individual domain extensions.
Built-In WHOIS Caching for Performance
To ensure fast response times and reduce unnecessary network requests, the module includes a built-in filesystem caching system.
When a WHOIS query is performed, the response is stored locally and reused for subsequent requests during the configured cache lifetime. This significantly reduces outbound WHOIS traffic while improving lookup speeds for frequently queried domains.
Typical performance improvements include:
| Scenario | Response Time |
|---|---|
| Cached lookup | Under 10 milliseconds |
| Fresh WHOIS query | 200–900 milliseconds |
By caching responses, the module also helps protect upstream WHOIS servers from excessive requests.
Flexible TLD Validation
The addon allows administrators to define which domain extensions are accepted by the lookup tool. This configuration is maintained in a separate file, making it easy to update without modifying the core module code.
Administrators can also choose to allow any TLD if they prefer not to enforce a strict validation list.
This flexibility makes the module suitable for environments ranging from small hosting providers to large-scale domain marketplaces.
Seamless WHMCS Integration
One of the key goals of the project was to ensure that the module integrates naturally with WHMCS. The addon follows WHMCS development best practices and relies on native platform functionality wherever possible.
Key integration features include:
- Native WHMCS CAPTCHA support
- WHMCS addon module architecture
- WHMCS database integration for server management
- Smarty-based client area templates
- Compatibility with WHMCS security and configuration settings
This ensures that the module behaves like a natural extension of the WHMCS platform rather than a standalone add-on.
Easy Installation and Deployment
Deploying the module takes only a few minutes. Administrators simply upload the module directory to the WHMCS addons folder and activate it through the WHMCS admin panel.
Once activated, the module automatically creates its required database tables and becomes immediately available.
The lookup page can then be accessed through the WHMCS routing system and linked anywhere on the provider’s website.
Ideal for Hosting Providers and Domain Services
The WHMCS WHOIS Addon Module is especially useful for:
- Web hosting providers
- Domain registrars
- Domain marketplaces
- Infrastructure platforms
- SaaS providers managing domain portfolios
By offering a built-in WHOIS lookup tool, providers can give visitors quick access to domain registration data while keeping the entire experience within their own platform.
Continuing Innovation from Rad Web Hosting
The release of the WHMCS WHOIS Addon Module reflects Rad Web Hosting’s ongoing commitment to building practical tools for the hosting and infrastructure community.
Rad Web Hosting has long focused on delivering solutions that combine performance, security, and operational simplicity, and this module continues that tradition by providing a production-ready WHOIS lookup system designed specifically for WHMCS environments.
Future enhancements may include additional performance improvements, advanced caching options, and expanded domain intelligence features.
Availability
The Rad Web Hosting client-facing WHMCS WHOIS Addon Module is available now.
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