SSLTrackr VS CloudLinux

Compare SSLTrackr VS CloudLinux and see what are their differences

Rating: 0 reviews
Pricing: Freemium $20 / Monthly (Pro 50, 50 certificates, all features)
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Rating: 0 reviews
Pricing: Open source
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Base details

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

	SSLTrackr	CloudLinux
Website	ssltrackr.com	cloudlinux.com
Pricing	Freemium $20 / Monthly (Pro 50, 50 certificates, all features) Official pricing	Open source
Company	2026	—
Listed in	Monitoring Tools SSL Monitoring SSL Certificates Certificate Lifecycle Management Domain Name Registrar +2	Hosting Web Hosting Cloud Hosting VPS Hosting +1

About SSLTrackr and CloudLinux

In their own words, as submitted to SaaSHub.

SSLTrackr

CloudLinux

SSLTrackr is a comprehensive monitoring solution designed for developers and IT teams who need more than just an expiration countdown. We provide a deep dive into your SSL configuration, auditing chain validity, TLS protocols, and HSTS status to provide a clear security grade (A+ to F). Combined...

Features and specs

What each product offers, as listed by its team.

SSLTrackr 5 features

CloudLinux 5 features

Deep SSL Audit
Security grades ala SSL Labs.
WHOIS Guard
Email, Slack, Webhooks, Push, and even SMS.
No Agent
Enter a URL and you're done in 3 seconds.
True Free Tier
Up to 10 domains monitored for free, forever.
Api access
Manage all from your tools

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.

SSLTrackr

CloudLinux

Overall verdict

SSLTrackr appears to be a niche SSL certificate monitoring tool designed to help website owners and IT teams track certificate expiration dates and avoid unexpected outages, but without hands-on testing or extensive user reviews available, its overall quality and reliability compared to established competitors cannot be fully verified.

Why this product is good

Focuses specifically on SSL certificate expiration tracking, which addresses a common and costly oversight for businesses
Automated monitoring can reduce manual effort in checking certificate statuses across multiple domains
Potentially simple and lightweight compared to full-scale security suites, making it easier to adopt quickly
May offer alerting features to notify teams before certificates lapse, preventing downtime

Recommended for

Small to medium businesses managing multiple domains and certificates
IT administrators looking for a simple, dedicated SSL expiration alert system
Website owners without complex security infrastructure who need basic monitoring
Teams wanting a lightweight alternative to bundled enterprise security monitoring platforms

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.

SSLTrackr 0 videos + Add

CloudLinux 3 videos + Add

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

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

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

SSLTrackr

CloudLinux

100% 100%

Monitoring Tools

0% 0%

Cloud Hosting

100% 100%

Domain Name Registrar

0% 0%

Web Hosting

100% 100%

Questions & Answers

As answered by people managing SSLTrackr and CloudLinux.

What makes your product unique?

SSLTrackr's answer

Comprehensive Security Grading: Unlike simple expiration checkers, SSLTrackr uses the testssl.sh engine to provide a professional security grade (from A+ to F). It analyzes your configuration quality (protocols, ciphers, vulnerabilities) rather than just checking a date.
Hybrid SSL + WHOIS Monitoring: We monitor both your certificates and domain registrations simultaneously. A forgotten domain name is just as critical for downtime as an expired SSL.
Multi-Channel Proactive Alerts: It offers a flexible notification system via Email, SMS, Slack, signed Webhooks, and Push, with configurable thresholds (60d, 30d, 14d, 7j, 3j, 1d) to ensure you are never caught off guard.

Why should a person choose your product over its competitors?

SSLTrackr's answer

Simplicity & Speed: "3-click setup" with absolutely no agents or servers to install.
Actionable Insights: Translates complex TLS data into simple, readable grades that both developers and managers can understand.
Developer-First Approach: Full REST API documentation and HMAC-signed Webhooks for seamless integration into DevOps workflows.
Generous Free Tier: Monitor up to 10 domains for free, no credit card required.

How would you describe the primary audience of your product?

SSLTrackr's answer

IT & DevOps Teams: Managing large portfolios of domains who need a centralized, automated monitoring board.
SaaS Founders & E-commerce Owners: For whom a "Not Secure" warning means immediate loss of revenue, customer trust, and SEO ranking.
Web Agencies: Who need to monitor their clients' websites to guarantee service continuity and peace of mind.

What's the story behind your product?

SSLTrackr's answer

SSLTrackr was born from a simple observation: SSL and domain expiration are simple human errors that lead to catastrophic consequences. We built an "automatic guardian" that works 24/7 to turn critical asset management into total peace of mind. Our goal was to create the simplest yet most robust tool to ensure no one ever has to deal with an expired certificate emergency on a Sunday night again.

Who are some of the biggest customers of your product?

SSLTrackr's answer

Due to our commitment to privacy and security, we do not publicly list specific client names. SSLTrackr is trusted by independent developers, digital agencies, and tech-focused SMEs that manage critical digital infrastructures requiring rigorous monitoring of their online assets.

User comments

Share your experience with using SSLTrackr and CloudLinux. For example, how are they different and which one is better?

Alternatives to SSLTrackr and CloudLinux

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

GuardSSL.info
Instant SSL certificate checker with 1-second results. No registration required. Monitor SSL expiry 24/7 with automated alerts via Slack, Discord, Telegram & Feishu. Free forever.

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GuardSSL.info vs SSLTrackr GuardSSL.info vs CloudLinux
Watch my SSL
Know before your SSL certificates and domains expire.

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