Software Alternatives & Startups

GlowSMS VS CloudLinux

Compare GlowSMS VS CloudLinux and see what are their differences

GlowSMS

Temporary non-VoIP phone numbers for receiving SMS and OTP verification codes online, with activations lasting up to 20 minutes across 180+ countries and 500+ supported services.

Rating
0 reviews
Pricing
Paid
CloudLinux

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

Rating
0 reviews
Pricing
Open source
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Base details

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

GlowSMS
CloudLinux
Website glowsms.com cloudlinux.com
Pricing
Paid
Open source
Platforms
Web
—
Company 2026 —
Listed in

About GlowSMS and CloudLinux

In their own words, as submitted to SaaSHub.

GlowSMS
CloudLinux

GlowSMS is an online SMS verification platform for receiving one-time passwords (OTP) and verification codes with temporary non-VoIP phone numbers. Numbers are available across 180+ countries and 500+ supported apps and online services, with each activation available for up to 20 minutes. Users...

Read more about GlowSMS

No description of CloudLinux yet.

Features and specs

What each product offers, as listed by its team.

GlowSMS 6 features
CloudLinux 5 features
  • Up to 20-Minute Temporary Numbers
    Temporary non-VoIP numbers for SMS and OTP verification, active for up to 20 minutes per order.
  • Multiple SMS & Resends
    Receive verification-code resends during the 20-minute activation window, with new SMS automatically appearing in the dashboard.
  • Global Coverage
    Choose temporary numbers across 180+ countries for 500+ supported apps and online services.
  • Live Availability & Pricing
    Check current country, service, stock, and pricing before placing an order.
  • Balance Refund if No SMS
    Eligible no-SMS orders can be cancelled, with the order amount returned to the GlowSMS account balance.
  • REST API
    Public REST API for service and offer discovery, ordering numbers, retrieving OTP codes, and checking order status.
  • 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.

GlowSMS
CloudLinux

No analysis of GlowSMS 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.

GlowSMS 0 videos + Add
CloudLinux 3 videos + Add

No GlowSMS 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
GlowSMS
CloudLinux
100% 100%
0% 0%
0% 0%
100% 100%
100% 100%
0% 0%
0% 0%
100% 100%

Questions & Answers

As answered by people managing GlowSMS and CloudLinux.

Which are the primary technologies used for building your product?

GlowSMS's answer

Web application, real-time SMS dashboard, and REST API.

What's the story behind your product?

GlowSMS's answer

GlowSMS was created to make SMS verification simpler and more transparent. Temporary-number services can involve unclear pricing, changing availability, slow code delivery, and complicated refund processes. GlowSMS was built around a simpler workflow: show current options and prices, let users choose a service and country, deliver incoming SMS through a real-time dashboard, and provide a clear path for eligible no-SMS orders. The goal is to make short-term phone verification straightforward for both individuals and businesses.

How would you describe the primary audience of your product?

GlowSMS's answer

GlowSMS is primarily for individuals, teams, businesses, and developers that need temporary phone numbers to receive SMS or OTP verification codes for supported apps and websites without using a personal phone number. It is best suited to short-term verification workflows and temporary access to phone numbers.

Why should a person choose your product over its competitors?

GlowSMS's answer

GlowSMS is designed for users who want straightforward, short-term SMS verification rather than long-term phone-number rental. Users can check current availability and pricing before ordering, receive verification-code resends during the active window, and get the order amount returned to their GlowSMS balance when an eligible order receives no SMS. Both web-based ordering and a REST API are available.

What makes your product unique?

GlowSMS's answer

GlowSMS combines temporary non-VoIP phone numbers, up-to-20-minute activations, verification-code resends, live availability and pricing, and coverage across 180+ countries and 500+ supported services. Eligible orders that receive no SMS can be cancelled for a refund to the GlowSMS account balance, and a REST API is available for automated workflows.

User comments

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