Best SSL & TLS Certificate Tools for Small Business

How Many SSL & TLS Certificate Tools Products Does G2 Track?

Total Products under this Category: 45

Category Stats (Sep 2026)

  • Average Rating: 4.38/5 (↑0.01 vs Aug 2026) The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: SSLBoard (+5.56%) - Among all products in this category, SSLBoard recorded the largest rating increase compared to last month

Last updated: September 15, 2026

How Does G2 Rank SSL & TLS Certificate Tools Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 1,700+ Authentic Reviews
  • 45+ Products
  • Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

G2 Grid® for SSL & TLS Certificate Tools

G2 Grid® for SSL & TLS Certificate Tools plotting products by satisfaction and market presence

Highlighted products: Cloudflare Application Security and Performance, GoDaddy SSL Certificates, DigiCert ONE, ZeroSSL, Sectigo Certificate Manager, AWS Certificate Manager, SSL.com, and Letsencrypt.

Underlying data: [Grid® JSON](https://www.g2.com/categories/ssl-tls-certificate-tools/grids.json?focus%5B%5D=cloudflare-application-security-and-performance&focus%5B%5D=godaddy-ssl-certificates&focus%5B%5D=digicert-one&focus%5B%5D=zerossl&focus%5B%5D=sectigo-certificate-manager&focus%5B%5D=aws-certificate-manager&focus%5B%5D=ssl-com&focus%5B%5D=letsencrypt&segment=small-business)

Cloudflare Application Security and Performance

Cloudflare is the connectivity cloud for the "everywhere world," on a mission to help build a better Internet. We provide a unified platform of networking, security, and developer services delivered from a single, intelligent global network that spans hundreds of cities in over 125 countries. This empowers organizations of all sizes, from small businesses to the world's largest enterprises, to make their employees, applications, and networks faster and more secure everywhere, while significantly reducing complexity and cost. Our comprehensive platform includes: - Advanced Security: Protect your online presence with industry-leading DDoS protection, a robust Web Application Firewall (WAF), Bot mitigation, and API security. Implement Zero Trust security to secure remote access, data, and applications for your entire workforce. - Superior Performance: Accelerate website and application loading times globally with our Content Delivery Network (CDN), intelligent DNS, and smart routing capabilities. Optimize images and deliver dynamic content with unparalleled speed. - Powerful Developer Tools: Empower your developers to build and deploy full-stack applications at the edge using Cloudflare Workers (serverless functions), R2 Storage (object storage without egress fees), and D1 (serverless SQL database). Cloudflare helps connect and protect millions of customers globally, offering the control, visibility, and reliability businesses need to work, develop, and accelerate their operations in today's hyperconnected landscape. Our global network continuously learns and adapts, ensuring your digital assets are always protected and performing at their best.

Average Rating: 4.5/5.0

Total Reviews: 750

How Do G2 Users Rate Cloudflare Application Security and Performance?

  • Has the product been a good partner in doing business?: 8.8/10 (Category avg: 9.1/10)
  • Warranty: 7.8/10 (Category avg: 8.7/10)
  • Domain Validated SSL: 9.5/10 (Category avg: 9.1/10)
  • Server License: 8.3/10 (Category avg: 8.7/10)

Who Is the Company Behind Cloudflare Application Security and Performance?

  • Seller: Cloudflare, Inc.
  • Company Website:
  • Year Founded: 2009
  • HQ Location: San Francisco, California
  • Twitter: @Cloudflare
    286,254 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    8,094 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: Web Developer, Software Engineer
  • Top Industries: Information Technology and Services, Computer Software
  • Company Size: 62% Small, 27% Medium

What Do G2 Reviewers Say About Cloudflare Application Security and Performance?

AI-generated summary from verified user reviews

Pros
  • Users value the robust security features of Cloudflare, appreciating its effective protection against attacks and fast page loads.
  • Users appreciate the user-friendly interface of Cloudflare, making management of security and performance settings effortless.
  • Users appreciate the user-friendly interface of Cloudflare, making security and performance management easy and efficient.
  • Users appreciate the enhanced site performance provided by Cloudflare, leading to faster page load times and improved security.
  • Users value Cloudflare's DDoS protection, as it effectively secures websites and significantly improves page load times.
Cons
  • Users find the complex user interface of Cloudflare challenging, often leading to confusion and a steep learning curve.
  • Users find the high pricing for advanced features to be a significant drawback, restricting access to essential tools.
  • Users find the complex setup challenging, particularly with advanced configurations that require extra time and support.
  • Users find the complexity of advanced configurations challenging, impacting user-friendliness for those new to security platforms.
  • Users experience a steep learning curve for advanced features in Cloudflare Application Security and Performance, complicating user experience.

What Are Recent G2 Reviews of Cloudflare Application Security and Performance?

What Are G2 Users Discussing About Cloudflare Application Security and Performance?

GoDaddy SSL Certificates

All-in-one: SSL, firewall and malware protection. Comprehensive protection and security for your site.

Average Rating: 4.0/5.0

Total Reviews: 19

How Do G2 Users Rate GoDaddy SSL Certificates?

  • Has the product been a good partner in doing business?: 8.5/10 (Category avg: 9.1/10)
  • Warranty: 7.1/10 (Category avg: 8.7/10)
  • Domain Validated SSL: 7.9/10 (Category avg: 9.1/10)
  • Server License: 8.3/10 (Category avg: 8.7/10)

Who Is the Company Behind GoDaddy SSL Certificates?

  • Seller: GoDaddy
  • Year Founded: 1997
  • HQ Location: Scottsdale, AZ
  • Twitter: @GoDaddy
    274,844 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    9,052 employees on LinkedIn®
  • Ownership: NYSE:GDDY

Who Uses This Product?

  • Company Size: 63% Small, 26% Medium

What Are Recent G2 Reviews of GoDaddy SSL Certificates?

What Are G2 Users Discussing About GoDaddy SSL Certificates?

ZeroSSL

ZeroSSL is a comprehensive solution for SSL certificate creation and management, designed to enhance website security through the issuance of SSL certificates. This platform caters to a variety of users, from individual website owners to large organizations, providing them with the tools necessary to secure their online presence. With a focus on user-friendliness, ZeroSSL offers multiple methods for certificate creation, including a straightforward user interface, ACME integrations, and a robust SSL REST API. The target audience for ZeroSSL includes web developers, IT professionals, and businesses seeking to implement secure connections on their websites. This solution is particularly beneficial for those managing multiple domains or requiring various types of certificates, such as single-domain, multi-domain, and wildcard certificates. The flexibility of choosing between 90-day and 1-year certificate validity periods allows users to tailor their security needs based on their specific requirements and operational timelines. Key features of ZeroSSL include its intuitive user interface, which simplifies the process of generating and managing SSL certificates. Users can easily navigate through the steps required to obtain a certificate, making it accessible even for those with limited technical expertise. Additionally, the ACME integrations streamline the process for developers, allowing for automated certificate issuance and renewal, which is essential for maintaining uninterrupted website security. The SSL REST API further enhances the platform's capabilities, enabling advanced users to integrate SSL management into their existing systems seamlessly. ZeroSSL stands out in the SSL certificate market by providing a combination of ease of use and flexibility. The ability to manage various types of certificates from a single platform reduces the complexity often associated with SSL management. Furthermore, the option to select different validity periods allows users to optimize their security strategy based on their operational needs. This adaptability, coupled with the platform's commitment to user experience, positions ZeroSSL as a valuable tool for anyone looking to enhance their website's security posture effectively.

Average Rating: 4.4/5.0

Total Reviews: 82

How Do G2 Users Rate ZeroSSL?

  • Has the product been a good partner in doing business?: 9.2/10 (Category avg: 9.1/10)
  • Warranty: 8.1/10 (Category avg: 8.7/10)
  • Domain Validated SSL: 9.2/10 (Category avg: 9.1/10)
  • Server License: 8.7/10 (Category avg: 8.7/10)

Who Is the Company Behind ZeroSSL?

  • Seller: HID Global
  • Company Website:
  • Year Founded: 1991
  • HQ Location: Austin, TX
  • Twitter: @HIDGlobal
    12,006 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    4,151 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Computer Software, Marketing and Advertising
  • Company Size: 76% Small, 19% Medium

What Are Recent G2 Reviews of ZeroSSL?

DigiCert ONE

DigiCert ONE is a cloud-native digital trust platform that helps organizations automate, manage, and secure certificates, identities, software, devices, DNS infrastructure, documents, and email communications from a single platform. Designed to simplify complex trust environments, DigiCert ONE provides centralized visibility, policy-based governance, and automation to reduce operational risk, improve compliance, and accelerate digital transformation initiatives. The platform includes: - Trust Lifecycle Manager for CA-agnostic certificate lifecycle management, certificate discovery, automation, and public and private PKI. - Software Trust Manager for secure code signing, software supply chain protection, and automated signing workflows. - Device Trust Manager for establishing and managing trusted device identities throughout the IoT and device lifecycle. - Content Trust Manager for digital signatures, electronic seals, timestamping, and document trust services. - UltraDNS for highly available, secure DNS infrastructure, intelligent traffic management, and application resiliency. - Messaging Trust for email authentication, domain protection, phishing prevention, and improved email deliverability. DigiCert ONE also integrates with CertCentral®, enabling organizations to streamline the issuance, management, and automation of publicly trusted TLS/SSL certificates alongside their broader digital trust operations. Built on a scalable, container-based architecture, DigiCert ONE supports cloud, on-premises, hybrid, and air-gapped deployments, enabling organizations to meet security, operational, and regulatory requirements while maintaining agility. Organizations use DigiCert ONE to eliminate manual trust management processes, prevent certificate-related outages, secure software and connected devices, protect critical infrastructure, and build trusted digital experiences at scale.

Average Rating: 4.3/5.0

Total Reviews: 72

How Do G2 Users Rate DigiCert ONE?

  • Has the product been a good partner in doing business?: 9.2/10 (Category avg: 9.1/10)
  • Warranty: 8.6/10 (Category avg: 8.7/10)
  • Domain Validated SSL: 9.0/10 (Category avg: 9.1/10)
  • Server License: 8.7/10 (Category avg: 8.7/10)

Who Is the Company Behind DigiCert ONE?

  • Seller: DigiCert
  • Company Website:
  • Year Founded: 2003
  • HQ Location: Lehi, UT
  • Twitter: @digicert
    6,675 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    1,957 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Information Technology and Services, Computer Software
  • Company Size: 39% Small, 37% Medium

What Are Recent G2 Reviews of DigiCert ONE?

What Are G2 Users Discussing About DigiCert ONE?

Sectigo Certificate Manager

Sectigo Certificate Manager (SCM) helps organizations eliminate certificate chaos and reduce hidden risk with a cloud-native certificate lifecycle management (CLM) platform built for simplicity at scale. SCM discovers, issues, automates, and governs certificates across your entire identity environment through a single, centralized dashboard so nothing goes unmanaged.As a fully CA-agnostic solution, SCM works with both public and private certificate authorities and supports modern enrollment protocols including ACME, SCEP, and EST. With more than 50 turnkey integrations across cloud, DevOps, networking, and security tools, SCM fits seamlessly into existing environments without adding operational complexity. Designed for a world of shorter TLS certificate lifespans and increasing operational risk, SCM helps prevent outages, accelerates time to value, and builds the automation foundation needed for post-quantum cryptography readiness. Backed by one of the largest, longest-standing, and most reputable CAs, SCM is a fast, scalable way to secure and manage digital trust.

Average Rating: 4.5/5.0

Total Reviews: 197

How Do G2 Users Rate Sectigo Certificate Manager?

  • Has the product been a good partner in doing business?: 9.2/10 (Category avg: 9.1/10)
  • Warranty: 8.5/10 (Category avg: 8.7/10)
  • Domain Validated SSL: 9.2/10 (Category avg: 9.1/10)
  • Server License: 8.2/10 (Category avg: 8.7/10)

Who Is the Company Behind Sectigo Certificate Manager?

  • Seller: Sectigo
  • Company Website:
  • Year Founded: 1998
  • HQ Location: Scottsdale, Arizona
  • Twitter: @SectigoHQ
    2,902 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    688 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Information Technology and Services, Financial Services
  • Company Size: 48% Large, 29% Medium

What Are Recent G2 Reviews of Sectigo Certificate Manager?

AWS Certificate Manager

AWS Certificate Manager is a service that lets you easily provision, manage, and deploy Secure Sockets Layer/Transport Layer Security (SSL/TLS) certificates for use with AWS services to secure network communications and establish the identity of websites.

Average Rating: 4.5/5.0

Total Reviews: 55

How Do G2 Users Rate AWS Certificate Manager?

  • Has the product been a good partner in doing business?: 9.3/10 (Category avg: 9.1/10)
  • Warranty: 8.9/10 (Category avg: 8.7/10)
  • Domain Validated SSL: 8.2/10 (Category avg: 9.1/10)
  • Server License: 9.0/10 (Category avg: 8.7/10)

Who Is the Company Behind AWS Certificate Manager?

  • Seller: Amazon Web Services (AWS)
  • Year Founded: 2006
  • HQ Location: Seattle, WA
  • Twitter: @awscloud
    2,232,483 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    147,094 employees on LinkedIn®
  • Ownership: NASDAQ: AMZN

Who Uses This Product?

  • Top Industries: Information Technology and Services, Computer Software
  • Company Size: 48% Medium, 28% Large

What Are Recent G2 Reviews of AWS Certificate Manager?

What Are G2 Users Discussing About AWS Certificate Manager?

SSL.com

SSL.com is an integral component of an organization’s layered cybersecurity defense strategy. As a Digital Identity and Trust Services Provider, SSL.com provides publicly trusted digital certificates, cloud code and document signing services, and enterprise PKI solutions. Businesses and governments in over 180 countries utilize SSL.com solutions to protect their internal networks, customer communications, eCommerce platforms, and web services.

Average Rating: 4.3/5.0

Total Reviews: 39

How Do G2 Users Rate SSL.com?

  • Has the product been a good partner in doing business?: 9.5/10 (Category avg: 9.1/10)
  • Warranty: 9.3/10 (Category avg: 8.7/10)
  • Domain Validated SSL: 9.4/10 (Category avg: 9.1/10)
  • Server License: 8.7/10 (Category avg: 8.7/10)

Who Is the Company Behind SSL.com?

  • Seller: SSL.com
  • Year Founded: 2004
  • HQ Location: Houston, TX
  • Twitter: @sslcorp
    2,455 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    97 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Computer Software, Information Technology and Services
  • Company Size: 64% Small, 29% Medium

What Do G2 Reviewers Say About SSL.com?

AI-generated summary from verified user reviews

Pros
  • Users commend the excellent customer support of SSL.com, with prompt and knowledgeable assistance available whenever needed.
  • Users find ease of use with SSL.com, enjoying quick setups and responsive support from knowledgeable staff.
Cons
  • Users find the overwhelming interface of SSL.com confusing, making it difficult to navigate and locate information.

What Are Recent G2 Reviews of SSL.com?

What Are G2 Users Discussing About SSL.com?

Letsencrypt

Lets Encrypt is a free, automated, and open certificate authority brought to you by the non-profit Internet Security Research Group (ISRG).

Average Rating: 4.8/5.0

Total Reviews: 22

How Do G2 Users Rate Letsencrypt?

  • Has the product been a good partner in doing business?: 10.0/10 (Category avg: 9.1/10)
  • Warranty: 7.8/10 (Category avg: 8.7/10)
  • Domain Validated SSL: 10.0/10 (Category avg: 9.1/10)
  • Server License: 10.0/10 (Category avg: 8.7/10)

Who Is the Company Behind Letsencrypt?

  • Seller: Letsencrypt
  • Year Founded: 2013
  • HQ Location: San Francisco, California
  • Twitter: @letsencrypt
    84,373 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    6 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 82% Small, 18% Medium

What Are Recent G2 Reviews of Letsencrypt?

IONOS 1&1 Domains and hosting

IONOS 1&1 offers a comprehensive suite of domain registration and web hosting services tailored to meet the needs of individuals, small businesses, and enterprises. With over 30 years of experience, IONOS provides reliable and innovative solutions, including domain registration, web hosting, email services, and cloud infrastructure, all hosted in their own regional data centers in the US and Europe. Their offerings are designed to help users establish and maintain a robust online presence with ease and efficiency. Key Features and Functionality: - Domain Registration: Secure your unique online address with a wide selection of domain extensions, ensuring your brand stands out. - Web Hosting: Choose from various hosting plans that include features like redundant storage, multiple databases, and unmetered bandwidth to accommodate websites of all sizes. - Email Services: Create professional email addresses matching your domain, enhancing your brand's credibility and communication. - Security Measures: Benefit from Wildcard SSL certificates included in hosting plans, ensuring encrypted and secure data transfers for your website visitors. - User-Friendly Management: Utilize intuitive control panels and management tools to easily oversee your domains, hosting, and email services. Primary Value and Solutions Provided: IONOS 1&1 simplifies the process of establishing and managing an online presence by offering integrated services that cater to various digital needs. By combining domain registration, hosting, and email services under one provider, users experience streamlined operations, enhanced security, and dedicated customer support. This holistic approach allows businesses and individuals to focus on growth and engagement without the complexities of managing multiple service providers.

Average Rating: 3.5/5.0

Total Reviews: 150

How Do G2 Users Rate IONOS 1&1 Domains and hosting?

  • Has the product been a good partner in doing business?: 6.7/10 (Category avg: 9.1/10)
  • Warranty: 6.7/10 (Category avg: 8.7/10)
  • Domain Validated SSL: 7.8/10 (Category avg: 9.1/10)
  • Server License: 7.0/10 (Category avg: 8.7/10)

Who Is the Company Behind IONOS 1&1 Domains and hosting?

  • Seller: IONOS by 1&1
  • Year Founded: 1988
  • HQ Location: Montabaur, Rheinland-Pfalz
  • LinkedIn® Page: www.linkedin.com
    2,831 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: Software Engineer, Director
  • Top Industries: Marketing and Advertising, Information Technology and Services
  • Company Size: 72% Small, 16% Medium

What Do G2 Reviewers Say About IONOS 1&1 Domains and hosting?

AI-generated summary from verified user reviews

Pros
  • Users commend IONOS for its affordable pricing, making it an attractive option for budget-conscious hosting solutions.
  • Users appreciate the competitive pricing of IONOS, making it an ideal choice for small business owners.
  • Users value the affordability of IONOS, making it ideal for small businesses with tight budgets.
  • Users value the cost-effectiveness of IONOS 1&1 Domains and hosting, especially for small businesses on a budget.
  • Users appreciate the clean and simple dashboard of IONOS, making domain and hosting setup easy for everyone.
Cons
  • Users express frustration over the incompetence and untrustworthiness of IONOS, citing poor support and unresolved issues.
  • Users report ineffective customer support from IONOS, citing unhelpful responses and unresolved issues for extended periods.
  • Users find the usability complex, with a confusing control panel and inadequate support for issues like 2FA.
  • Users report poor communication from IONOS, leading to frustration and unresolved issues with their services.
  • Users experience a poor user experience with IONOS, struggling with outdated controls and unhelpful customer service.

What Are Recent G2 Reviews of IONOS 1&1 Domains and hosting?

What Are G2 Users Discussing About IONOS 1&1 Domains and hosting?

OpenSSL

OpenSSL is an open source project that provides a robust, commercial-grade, and full-featured toolkit for the Transport Layer Security (TLS) and Secure Sockets Layer (SSL) protocols.

Average Rating: 4.5/5.0

Total Reviews: 26

How Do G2 Users Rate OpenSSL?

  • Has the product been a good partner in doing business?: 8.7/10 (Category avg: 9.1/10)
  • Warranty: 9.2/10 (Category avg: 8.7/10)
  • Domain Validated SSL: 8.5/10 (Category avg: 9.1/10)
  • Server License: 7.8/10 (Category avg: 8.7/10)

Who Is the Company Behind OpenSSL?

  • Seller: OpenSSL
  • Year Founded: 2009
  • HQ Location: Newark, US
  • Twitter: @OpenSSLannounce
    1,385 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    15 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 46% Small, 31% Large

What Are Recent G2 Reviews of OpenSSL?

What Are G2 Users Discussing About OpenSSL?

Brandon Summers-Miller
BS
Researched and written by Brandon Summers-Miller
Updated