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DomainBook Pro VS CloudLinux

Compare DomainBook Pro VS CloudLinux and see what are their differences

DomainBook Pro

Connect GoDaddy, Cloudflare or Namecheap to auto-import your domains, then track live expirations, AI valuations, ROI, blocklist reputation and drops in one portfolio. Flat $20/mo, unlimited domains, 7-day free trial.

Rating
0 reviews
Pricing
Paid Free trial $20 / Monthly (Pro — unlimited domains)
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CloudLinux

Making Linux secure, stable, and profitable for thousands of hosting providers and data centers worldwide.

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0 reviews
Pricing
Open source
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VisualVisitor
Consent-Based Identification of the Person Visiting Your Website Including First Name, Last Name, Email & 37 Other Data Points. Identify and Influence Your Engaged Website Visitors into Sales-Ready Leads – Before You Commit a Single Working Hour. sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Base details

Website, pricing, platforms and company facts side by side.

DomainBook Pro
CloudLinux
Website domainbookpro.com cloudlinux.com
Pricing
Paid Free trial $20 / Monthly (Pro — unlimited domains) Official pricing
Open source
Platforms
Web
—
Company Startup from the United States · 1 - 9 employees · 2026 —
Listed in
Domain Names Domain Name Registrar Domain Name Tools Web App Domains DNS Tools Business & Commerce +4
Hosting Web Hosting Cloud Hosting VPS Hosting +1

About DomainBook Pro and CloudLinux

In their own words, as submitted to SaaSHub.

DomainBook Pro
CloudLinux

DomainBook Pro is portfolio management software for domain brokers and investors. It replaces the 40-column spreadsheet with one command center that connects to your registrars, auto-imports your domains, and tracks cost basis, live expirations, valuations, reputation, ROI and sales across your...

Read more about DomainBook Pro

No description of CloudLinux yet.

Features and specs

What each product offers, as listed by its team.

DomainBook Pro 10 features
CloudLinux 5 features
  • Portfolio register
    Every domain in one searchable table: registrar, registration & expiration dates, nameservers, auto-renew and WHOIS privacy
  • Live RDAP/WHOIS refresh
    Pull real expiration dates, status and nameservers for one domain or the whole book, on demand or automatically in the background
  • Cost basis & valuations
    Acquisition cost, fees and renewals paid roll into total cost basis, tracked against estimated value and list price
  • Expiration alerts
    Color-coded 30/60/90-day countdowns plus a private ICS calendar feed for Google, Outlook or Apple Calendar
  • ROI & sales tracking
    Log each sale with commission, net proceeds, net profit, holding period and annualized ROI
  • Quarterly review
    Auto-sorts the book into Hold / Monitor / Review / Drop tiers for data-driven renewal decisions
  • Reports & Excel export
    Capital deployed, portfolio value, realized profit and annual carrying cost; CSV plus multi-tab Excel export
  • Domain availability search
    Check availability across TLDs and hand off to your registrar to buy
  • Multi-currency display
    View the whole portfolio and reports in USD, EUR, GBP, CAD or AUD
  • Two-factor authentication
    Email 2FA on by default, optional authenticator (TOTP) app with backup codes and trusted devices
  • Enhanced Server Stability
    CloudLinux uses its lightweight virtualization technology (LVE) to isolate each tenant on a shared hosting server, preventing any single user from consuming excessive resources and crashing the server for everyone else. This ensures consistent uptime and performance.
  • Improved Security with HardenedPHP and KernelCare
    CloudLinux offers HardenedPHP, which patches old and unsupported PHP versions against known vulnerabilities, and KernelCare, which provides live kernel patching without requiring server reboots. These features significantly enhance server security posture.
  • Resource Limit Management
    Administrators can set granular resource limits (CPU, memory, I/O, number of processes, etc.) per user account using LVE Manager. This makes it easy to manage shared hosting environments and ensure fair resource distribution among tenants.
  • CageFS File System Virtualization
    CageFS creates a virtualized file system for each user, preventing them from seeing other users on the server, viewing sensitive configuration files, or exploiting server vulnerabilities. This adds an important layer of isolation and security.
  • Wide Compatibility with Hosting Panels
    CloudLinux integrates seamlessly with popular hosting control panels such as cPanel, Plesk, and DirectAdmin, making it straightforward for hosting providers to adopt without overhauling their existing infrastructure or workflows.

Possible disadvantages

  • Additional Licensing Cost
    CloudLinux requires a paid monthly or annual license on top of the base server cost. For smaller hosting providers or individual server owners, this additional expense can add up and may not always be justifiable compared to free alternatives.
  • Limited to CentOS/RHEL-Based Systems
    CloudLinux is built on top of RHEL/CentOS and does not support other Linux distributions like Ubuntu or Debian. This limits its adoption for hosting providers who prefer or already run non-RHEL-based environments.
  • Learning Curve for Configuration
    While CloudLinux provides powerful resource management tools, properly configuring LVE limits, CageFS, PHP Selector, and other features requires a solid understanding of the platform. Misconfiguration can lead to users being unnecessarily restricted or resources being poorly allocated.
  • Potential Performance Overhead
    The additional layers of virtualization, resource monitoring, and file system isolation introduced by CloudLinux can impose a slight performance overhead on the server compared to running a bare, unmodified Linux distribution without these controls.
  • Dependency on CloudLinux Ecosystem
    Adopting CloudLinux means relying on their ecosystem for kernel updates, PHP patches, and security fixes. If the company experiences delays in releasing patches or changes its pricing/licensing model, hosting providers may find themselves locked into a dependency that is difficult to migrate away from.

Analysis

An editorial look at what each product does well and who it suits.

DomainBook Pro
CloudLinux

Overall verdict

  • I don't have verified, up-to-date information about DomainBook Pro (domainbookpro.com), so I can't confirm whether it's a legitimate or high-quality product. Before using it, I'd recommend independently verifying the company's reputation, reviews, and business practices.

Why this product is good

  • I don't have reliable data on this specific product to confirm its features or quality
  • No verified user reviews or independent ratings are available to me for this service
  • I cannot confirm the legitimacy, security practices, or business standing of this domain-related service

Recommended for

  • Anyone considering this service should first check independent review sites like Trustpilot, BBB, or Reddit for user feedback
  • Research the company's registration details via WHOIS lookup and verify how long the domain has been active
  • Look for verifiable customer testimonials, transparent pricing, and clear contact/support information before committing

Overall verdict

  • CloudLinux is a well-regarded, mature Linux OS distribution and toolset specifically designed for shared hosting and multi-tenant server environments, offering strong isolation, resource management, and security features that make it a solid choice for hosting providers.

Why this product is good

  • Provides LVE (Lightweight Virtual Environment) technology for per-tenant resource isolation, preventing 'bad neighbor' effects on shared servers
  • Enhances server stability and security by isolating users so that one account's issues (crashes, resource spikes) don't affect others
  • Offers extended lifecycle support (longer than standard CentOS/RHEL support windows), which is valuable for legacy systems
  • Includes tools like CloudLinux OS Shield, Imunify360 integration, and hardened kernel options for improved security
  • Compatible with popular control panels like cPanel and Plesk, making it easy to integrate into existing hosting stacks
  • Backed by an established company with a long track record in the hosting industry and responsive support
  • Offers granular control over CPU, memory, I/O, and other resources per user account
  • Provides PHP Selector and multiple PHP version support, useful for hosting providers serving diverse client needs

Recommended for

  • Web hosting companies running shared or reseller hosting environments
  • Hosting providers needing to isolate customer accounts on the same physical server
  • Businesses requiring extended OS support lifecycles beyond standard RHEL/CentOS EOL dates
  • Enterprises using cPanel or Plesk that want tighter security and resource control
  • Hosting companies looking to reduce support tickets caused by noisy-neighbor resource contention
  • IT teams managing multi-tenant infrastructure who need governance and monitoring tools built into the OS layer

Videos

Walkthroughs and reviews on video.

DomainBook Pro 0 videos + Add
CloudLinux 3 videos + Add

No DomainBook Pro videos yet. You could help us improve this page by suggesting one.

When To Use Cloudlinux On Your Virtual Private Server (VPS)

More videos

  • - CloudLinux OS+ in a minute: Explore Features
  • - How CloudLinux Plans to Keep CentOS 6 Alive

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
DomainBook Pro
CloudLinux
100% 100%
Domain Names
0% 0%
0% 0%
Cloud Hosting
100% 100%
100% 100%
Domain Name Registrar
0% 0%
0% 0%
Web Hosting
100% 100%

Questions & Answers

As answered by people managing DomainBook Pro and CloudLinux.

What makes your product unique?

DomainBook Pro's answer

DomainBook Pro is built around the economics of a domain book, not just record-keeping. It tracks acquisition cost basis, fees and renewals paid, then computes net profit, ROI and annualized ROI on every sale — and it pulls live RDAP data so expiration dates are real rather than remembered. Portfolio, renewals, sold and dropped ledgers, health benchmarks, multi-currency reports and Excel exports all live in one workspace, for a flat $20/month with no per-domain fees.

Why should a person choose your product over its competitors?

DomainBook Pro's answer

Most brokers are juggling a spreadsheet, a self-hosted tool like DomainMOD, or a marketplace-first platform like Efty. DomainBook Pro is hosted and maintained for you, and it focuses on the decisions that actually cost money: live RDAP expiration tracking with 30/60/90-day surfacing, true cost basis and ROI math, quarterly Hold/Monitor/Review/Drop tiering, and portfolio-health benchmarks. Pricing is flat $20/month for unlimited domains — it doesn't scale up as your book does.

How would you describe the primary audience of your product?

DomainBook Pro's answer

Domain brokers and investors running anywhere from a few dozen to several thousand names across multiple registrars — solo flippers, small brokerages and portfolio managers who have outgrown a spreadsheet but don't want to self-host and babysit a heavyweight tool. One login per brokerage, unlimited domains.

What's the story behind your product?

DomainBook Pro's answer

DomainBook Pro grew out of the 40-column spreadsheet every domain investor eventually builds — the one that goes stale the moment a name renews and never tells you your real return. It was built by MacappDevelops LLC as a deliberately focused tool: fast, hosted, one login per brokerage, unlimited domains, and every number a broker actually needs to make a renew-or-drop call. It launched in June 2026.

Which are the primary technologies used for building your product?

DomainBook Pro's answer

A dependency-free Node.js backend built entirely on Node's standard library, serving a no-build vanilla-JavaScript single-page app. Live domain data comes from RDAP/WHOIS over raw HTTPS, billing runs on Stripe, and CSV/XLSX exports are generated server-side. Deployed in Docker behind Cloudflare.

User comments

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Alternatives to DomainBook Pro and CloudLinux

When comparing DomainBook Pro and CloudLinux, you can also consider the following products.

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