Overview
Comodo SSL is a globally recognized budget SSL certificate brand. Comodo was founded in the United States in 1998 and was once one of the largest commercial CAs by issuance volume. In 2018, Comodo's CA business consolidated into Sectigo, but Comodo SSL certificates remain widely used thanks to excellent value and solid browser trust, with over 100 million certificates issued to date.
Comodo SSL's core strength is delivering broadly trusted certificates at extremely low prices: PositiveSSL and other DV certificates start at $5/year, with OV, EV, and wildcard options also available, see CDN and SSL/TLS configuration best practices. For budget-conscious individual site owners and SMBs, Comodo SSL is a highly attractive HTTPS solution.
Key Strengths
- Outstanding value: PositiveSSL DV certificates from as low as $5/year, among the lowest-priced commercial SSL certificates on the market.
- Broad browser trust: Comodo roots are pre-installed in mainstream browsers and operating systems, trusted by 99%+ of devices with no trust warnings.
- Full product coverage: DV, OV, EV, and wildcard certificates cover everything from personal sites to e-commerce platforms, see CDN and SSL/TLS configuration best practices.
- Complete service guarantees: 24/7 technical support, a 30-day refund guarantee, and free reissue on select models reduce buyer risk.
Product Ecosystem
PositiveSSL (DV)
Comodo's most economical DV certificate with fully automated domain validation, minute-level issuance, and prices from $5/year — ideal for personal sites, blogs, and internal systems.
EssentialSSL / InstantSSL
Advanced DV/OV certificates supporting multi-domain (SAN) and wildcard options for protecting multiple domains.
Comodo EV SSL
Extended-validation certificate showing the green address bar and company name, for e-commerce and finance scenarios requiring maximum trust.
Certificate Management
Expiry reminders, reissue, and online installation guidance covering Apache, Nginx, IIS, and other mainstream servers, paired with CDN and SSL/TLS configuration best practices for fast rollout.
Limitations
- Brand consolidated into Sectigo: After 2018 the CA business belongs to Sectigo; Comodo is kept as a legacy brand, which may confuse some users.
- Limited free services on budget tiers: Some low-cost DV plans exclude free reissue; code signing and other add-ons require separate purchase.
- Limited Chinese support: No Chinese management interface; cross-border users operate and get support through English channels.
- Traditional automation ecosystem: Compared with Let's Encrypt's ACME automation, Comodo's automation integration needs extra configuration.
Use Cases
- Individual site owners（★★★★★）：PositiveSSL DV from $5/year is the best-value HTTPS option for personal blogs and showcase sites.
- SMB corporate websites（★★★★）：OV/wildcard certificates provide organization validation and subdomain coverage at reasonable prices.
- E-commerce and online payments（★★★★）：EV certificates show the green address bar to build transaction trust at a moderate budget.
- High-automation teams（★★★）：Teams needing ACME automation should evaluate Let's Encrypt or Sectigo automation solutions.
Pricing
| Certificate Type | Reference Annual Price | Issuance Time | Notes |
|---|---|---|---|
| PositiveSSL (DV) | $5 - $15/yr | Minutes | Single domain, fully automated |
| EssentialSSL (DV/SAN) | $15 - $40/yr | Minutes | Multi-domain support |
| Comodo OV | $40 - $100/yr | 1-3 business days | Organization validation |
| Comodo EV | $100 - $250/yr | 1-3 business days | Green address bar |
| Wildcard | $40 - $120/yr | Minutes-1 day | Primary + subdomains |
Note: Market reference prices shown; actual prices vary by promotion and channel. New orders after 2018 are mainly issued through Sectigo channels.
FAQ
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What's the relationship between Comodo SSL and Sectigo? Comodo's CA business consolidated into Sectigo in 2018; Comodo SSL remains a legacy brand with certificates issued under the Sectigo root with identical trust, see CDN and SSL/TLS configuration best practices.
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Are cheap Comodo SSL certificates insecure? No. Encryption strength is independent of price; Comodo roots are pre-installed in mainstream browsers, with low pricing driven by streamlined validation and channel pricing, see the website security checklist.
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Does Comodo SSL offer wildcard certificates? Yes. Comodo offers wildcard DV and OV certificates protecting the primary domain and all first-level subdomains, see CDN and SSL/TLS configuration best practices.
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How long does Comodo SSL issuance take? DV certificates issue automatically in minutes; OV/EV require company documents and typically complete in 1-3 business days, see CDN and SSL/TLS configuration best practices.
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Can I still buy Comodo SSL certificates? Yes, but new orders are mainly issued through Sectigo channels (e.g., ssls.com) with certificates identical in nature to Comodo SSL, see CDN and SSL/TLS configuration best practices.