Software Alternatives & Startups

PowerDMARC VS CloudLinux

Compare PowerDMARC VS CloudLinux and see what are their differences

PowerDMARC

Stop hackers from sending emails from your domain.

Rating
0 reviews
Pricing
Freemium Free trial $8 / Monthly
CloudLinux

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

Rating
0 reviews
Pricing
Open source
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.

Which is more popular?

Based on our record, PowerDMARC seems to be more popular. It has been mentioned 3 times since March 2021.

social mentions
3 vs 0
DMARC Monitoring popularity
100% vs 0%

Base details

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

PowerDMARC
CloudLinux
Website powerdmarc.com cloudlinux.com
Pricing
Freemium Free trial $8 / Monthly Official pricing
Open source
Company Startup from the United States · 100 - 249 employees · 2020 —
Listed in

About PowerDMARC and CloudLinux

In their own words, as submitted to SaaSHub.

PowerDMARC
CloudLinux

PowerDMARC is an email authentication and domain security platform that helps organizations combat spoofing, phishing, domain name impersonation, and abuse. It stops hackers from sending emails from the organization’s own domain.

Read more about PowerDMARC

No description of CloudLinux yet.

Features and specs

What each product offers, as listed by its team.

PowerDMARC 5 features
CloudLinux 5 features
  • Email Authentication Suite
    PowerDMARC offers a wide range of email authentication protocols including DMARC, SPF, DKIM, MTA-STS, TLS-RPT, and BIMI, providing a holistic approach to email security and brand protection.
  • MCP Server Integration
    Connect Claude, Cursor, ChatGPT and other MCP-compatible AI assistants to your PowerDMARC account through a hosted MCP server. You can query DMARC reports, check domain health, look up DNS records, and manage domains and hosted records in plain English, all secured with your own API key permissions.
  • Email Deliverability
    Test where your emails land (inbox, spam, promotions or blocked) across Gmail, Outlook, Yahoo, iCloud, Zoho and AWS. Each test also validates SPF, DKIM and DMARC and gives a prioritized list of fixes. Reputation and blocklist monitoring alert you as soon as your sending reputation starts to drop.
  • AI Threat Intelligence
    PowerDMARC includes advanced threat intelligence features that help organizations detect and prevent phishing and spoofing attacks, enhancing the overall security posture of an organization.
  • DNS Security Compliance
    Daily automated checks score each domain from 0 to 100 (graded A to F). The checks cover DNSSEC, CAA records, dangling CNAMEs, nameserver health, SSL/TLS certificates and domain transfer locks, and come with step-by-step fixes. Checks are mapped to NIST SP 800-81r3, and the exportable results help with SOC 2, ISO 27001 and PCI DSS audits.
  • 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.

PowerDMARC
CloudLinux

No analysis of PowerDMARC yet.

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.

PowerDMARC 5 videos + Add
CloudLinux 3 videos + Add

Hosted DMARC

More videos

  • - What is DMARC Policy?
  • - Why PowerDMARC is Best for MSPs?
  • - What is PowerDMARC? Mission and Goals
  • - What is DMARC and How It works?

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
PowerDMARC
CloudLinux
100% 100%
0% 0%
0% 0%
100% 100%
100% 100%
0% 0%
0% 0%
100% 100%

Questions & Answers

As answered by people managing PowerDMARC and CloudLinux.

What's the story behind your product?

PowerDMARC's answer

The idea for PowerDMARC came from noticing how businesses, both small and large, fall victim to very basic cyber attacks and fail to protect themselves from impersonation, email spoofing, and phishing, and are not able to afford basic cybersecurity protection due to the high cost and complexity of setup. The vulnerability we protect from is not allowing hackers to send emails from your exact domain name itself. Imagine if someone sends an email from your company’s domain name - how would anyone understand that this email is not real?

Many organizations across the globe lose billions of dollars every day due to hackers spoofing their own exact domains due to existing vulnerabilities in email protocols. The solutions that existed in the market were very expensive, inaccessible for many businesses, and very hard to set up and configure. The idea was to make domain and email protection very simple and provide it at a super affordable price for all organizations, with no technical knowledge requirement.

What makes your product unique?

PowerDMARC's answer

AI-Native Email Authentication

  • MCP Server: a hosted MCP server that connects Claude, Cursor, ChatGPT and other MCP-compatible assistants to your PowerDMARC account. You can query reports, check domain health and manage DNS records in plain English.
  • DMARC AI Agent: a built-in assistant that diagnoses SPF, DKIM and DMARC failures and spam placement issues in real time.
  • AI-driven threat intelligence: scores each sending IP by risk based on how it behaves, not just whether it’s on a blacklist.

MSP/MSSP-First Approach

  • A multi-tenant, white-label platform designed for MSPs and MSSPs.
  • Partners can fully rebrand the platform, manage multiple clients under one console, and scale domain security as a service.
  • Most competitors focus directly on end-users, while PowerDMARC empowers partners to build a business model around DMARC.

Complete Email Authentication Suite (Beyond DMARC)

  • Instead of just offering DMARC monitoring, PowerDMARC integrates all key email security protocols in one platform:
  • DMARC, SPF, DKIM
  • MTA-STS & TLS-RPT (to enforce encrypted mail transfer)
  • BIMI (visual trust with brand logos)
  • Hosted DKIM, Hosted BIMI, Hosted SPF, Hosted DMARC, and Hosted MTA-STS services

This makes it a one-stop solution instead of piecing together multiple tools.

DNS Security Compliance

  • Daily automated checks of DNSSEC, CAA records, dangling CNAMEs, nameserver health, SSL/TLS certificates and domain transfer locks.
  • Each domain gets a 0–100 score (graded A to F) with step-by-step fixes. Checks are mapped to NIST SP 800-81r3, and the exportable results support SOC 2, ISO 27001 and PCI DSS audits.

Email Deliverability

  • Inbox placement testing across Gmail, Outlook, Yahoo, iCloud, Zoho and AWS.
  • Reputation and blocklist monitoring, plus support for meeting Google, Yahoo and Microsoft bulk sender requirements

Advanced Reporting & Threat Intelligence

  • User-friendly dashboards that convert raw DMARC XML reports into clear visuals.
  • Forensic report redaction & encryption for GDPR compliance.
  • Spoofing & phishing source tracing with real-time intelligence.
  • AI-powered insights (e.g., spoofing patterns, misconfiguration alerts).

Automated Policy Enforcement

  • Guided path from monitoring → quarantine → reject to make DMARC adoption stress-free.
  • Click-to-publish DNS records.
  • Automated recommendations that simplify what’s usually a complex manual process.

Enterprise-Grade Security & Compliance

  • SOC 2, ISO 27001, and GDPR compliance built into the platform.
  • Role-based access controls, SSO, and MFA for organizations.
  • Privacy-conscious forensic report handling.

Human-Backed Managed Services

  • Unlike some self-service platforms, PowerDMARC provides expert support and managed DMARC services.
  • Dedicated teams help enterprises and partners through onboarding, DNS record publishing, and policy enforcement.
  • This hand-holding drastically reduces the risk of email outages during rollout.

Continuous Innovation & Niche Focus

  • Regularly introduces new features (analytics, reporting, integrations) ahead of competitors.
  • Strong focus on education, awareness, and training (DMARC training courses, MSP enablement campaigns).

Why should a person choose your product over its competitors?

PowerDMARC's answer

PowerDMARC offers more than just basic DMARC protections and analytics. Its host of unique and advanced features makes it stand out among competitors:

  • A complete email authentication hosted service suite, including DMARC, SPF, DKIM, MTA-STS, TLS-RPT and BIMI
  • Hosted MCP server for managing DMARC through AI assistants (Claude, Cursor, ChatGPT)
  • Built-in DMARC AI Agent for instant troubleshooting
  • DNS security compliance scoring and inbox placement testing
  • Zero-touch, one-click SPF optimization using Macros
  • Forensic reports with PGP encryption
  • Full-platform white labeling for MSSPs
  • Multi-language support for 11 global languages
  • Responsive human support
  • Advanced Threat Intelligence insights and analytics

How would you describe the primary audience of your product?

PowerDMARC's answer

PowerDMARC serves organizations of all sizes, from SMBs to enterprises and government agencies, as well as MSPs and MSSPs that offer email security as a service. Typical users are IT and security teams, email administrators, compliance and GRC teams preparing for audits, and marketing and email teams who need reliable deliverability.

Which are the primary technologies used for building your product?

PowerDMARC's answer

PowerDMARC is built on email authentication protocols (DMARC, SPF, DKIM, MTA-STS, TLS-RPT and BIMI), DNS security standards (DNSSEC and CAA), AI and machine learning for threat intelligence, the Model Context Protocol (MCP) for AI assistant integrations, and a REST API for automation.

User comments

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

PowerDMARC no reviews yet
CloudLinux no reviews yet

We have no reviews of CloudLinux yet. Be the first one to post

Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

PowerDMARC 3 mentions
CloudLinux 0 mentions
  • How to Improve Your Defenses Against Business Email Compromise Attacks
    Implementing email authentication solutions like DMARC with an enforced policy is proven to drastically minimize the chances of BEC. You can learn about DMARC here: https://powerdmarc.com. Source: over 5 years ago
  • PowerDMARC
    Stop attacks with DMARC and protect your email service free from email spoofing Phishing PowerDMARC tool. Monitoring SPF DKIM, DMARC Record, BIMI MTA-STS TLS-RPT. Visit the website and Get a free real time email authentication assessment... Source: over 5 years ago
  • DMARC everywhere?
    You can try https://powerdmarc.com it starts from 8 usd a month, you get the DMARC analyzer along with MTA-STS and TLS-RPT. Source: over 5 years ago

Tracking CloudLinux since Mar 2021.

Alternatives to PowerDMARC and CloudLinux

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