SSL Certificate

Security certificates encrypting website connections.

Rankings

  1. 1. Let's Encrypt

    Free, automated DV TLS certificates for the web

    Let's Encrypt is a nonprofit certificate authority offering free Domain Validation TLS certificates at scale. It automates issuance and renewal via the ACME protocol, which makes it ideal for developers, hobby sites, and hosting providers that want to secure traffic without cost. It does not offer Organization or Extended Validation, so it targets basic encryption and domain ownership proof. The initiative is globally trusted and widely integrated into hosting panels, CI/CD pipelines, and developer tooling. In 2025 the organization continued to operate with 90-day certificate lifetimes (set to move to 45 days by 2028 as part of CA/B Forum timelines). This makes automation essential for ongoing security. The ecosystem includes popular ACME clients (Certbot, ACME.sh) and broad browser trust.

    Rated 4.6

  2. 2. AWS Certificate Manager (ACM)

    Free TLS certificates for AWS and beyond, with new exportable public certs (2025)

    AWS Certificate Manager (ACM) is a managed PKI service from Amazon that automates provisioning, deployment, and renewal of TLS certificates. It originally focused on AWS-integrated services (ELB, CloudFront) and offers free public certificates for those workloads. In 2025 AWS expanded ACM with exportable public certificates that can be used outside AWS, enabling termination on non-AWS workloads. The exportable public certs are priced per name (e.g., $15 per FQDN and $149 per wildcard), while standard public certs remain free when used with AWS resources. ACM Private CA (renamed AWS Private CA) provides paid private certificate authorities for internal use. This service is highly compatible with developers and large teams running multi-cloud or hybrid environments, particularly those leveraging Kubernetes, EKS, and hybrid architectures.

    Rated 4.7

  3. 3. Cloudflare Universal SSL

    Free DV SSL at Cloudflare edge for your domain

    Cloudflare offers universal SSL by default for domains added to Cloudflare, providing DV certificates at the edge. This means sites can adopt HTTPS quickly without managing certificates on origin servers. It is deeply integrated with Cloudflare's CDN, DNS, and WAF, delivering certificate management at scale across many data centers. Cloudflare’s model emphasizes simplicity, performance, and reliability, especially for sites using Cloudflare’s edge services. For those needing more control, Cloudflare also offers paid certificate options and dedicated certificates in certain plans.

    Rated 4.5

  4. 4. SSL.com Premium SSL

    Affordable DV SSL with fast issuance and broad compatibility

    SSL.com Premium SSL targets small to mid-size businesses seeking a cost-effective TLS option. It delivers rapid issuance (often within minutes), 2048-bit RSA with ECC support, and unlimited server licenses and reissues. The product line emphasizes straightforward domain validation with solid warranties on different tiers (DV, OV, and optional EV). SSL.com has been operating since the early 2000s and maintains a robust global customer base. The Premium SSL family is particularly attractive for startups, SMBs, and developers who want predictable per-year pricing and reliable browser compatibility.

    Rated 4.6

  5. 5. DigiCert Secure Site TLS/SSL Certificates

    Premium TLS/SSL with advanced validation and warranties

    DigiCert Secure Site TLS/SSL Certificates represent a premium tier with automated lifecycle management, malware and blocklist checks, and DigiCert Smart Seal. They offer broad coverage (DV/OV/EV with multi-domain options) and industry-leading warranties (NetSure). DigiCert emphasizes priority processing and enterprise-grade support, making it a staple for large websites, financial institutions, and brands needing strong assurances and SLIs with lifecycle automation. The brand has grown via acquisitions to become a top-tier option for those who want deep trust, robust warranties, and enterprise-grade tooling for certificate management.

    Rated 4.7

  6. 6. GlobalSign Extended Validation (EV) SSL

    Highest-assurance EV SSL to display verified organization details

    GlobalSign EV SSL is a high-assurance certificate designed to visibly verify an organization's identity in the browser. It includes strong warranties and a robust issuance process, making it suitable for e-commerce, financial services, and enterprise websites that require maximum user trust. GlobalSign has a long-standing history as a trusted CA with a broad international footprint and multi-regional support. EV certificates are particularly valued by large brands seeking to maximize user confidence, even in phishing-prone contexts. GlobalSign emphasizes automated lifecycle management and wide browser/device coverage, continuing to compete at the premium end of the market.

    Rated 4.5

  7. 7. Sectigo SSL Store (DV SSL Certificate)

    Sectigo SSL Store offers a broad range of SSL options with competitive pricing

    Sectigo SSL Store (formerly Comodo) provides a wide selection of TLS/SSL certificates—from DV to EV, and including SAN/Wildcard options. The store highlights affordability and a broad product lineup, backed by Sectigo’s long-standing CA presence. The rebrand from Comodo CA to Sectigo is well-documented and ongoing, with Sectigo continuing to supply SSL, IoT PKI, and other security products to enterprises and SMBs globally. For many users, Sectigo provides a balance of price and capability, with solid warranty coverage and strong reseller support.

    Rated 4.7

  8. 8. GoDaddy EV SSL

    High-assurance EV SSL from a global hosting and domain brand

    GoDaddy’s EV SSL is a premium certificate that emphasizes highest trust with extended validation and visual indicators of legitimacy in the browser. It is suitable for financial services, ecommerce, and government-grade sites needing strong user confidence. GoDaddy positions itself as a one-stop provider for domains, hosting, and SSL, with easy-to-use management tools and integration with popular hosting stacks. While the EV product commands a premium price, it benefits from a broad support network, automated installation options, and a familiar brand for many small businesses and enterprises.

    Rated 4.4

  9. 9. Namecheap InstantSSL

    Affordable OV SSL with easy renewal via Namecheap

    Namecheap InstantSSL is an entry-to-mid level SSL option (OV) offered through Namecheap, commonly used by small businesses and personal sites. It provides organization validation with a solid warranty and straightforward issuance. Namecheap’s SSL offerings are frequently bundled with hosting plans, making it convenient for users who want a single checkout. The product line extends to InstantSSL Pro variants as well, offering additional validation and branding features. Pricing tends to be competitive, though renewal costs can be higher than promos or bundled hosting plans.

    Rated 4.5