DigiCert is one of the world's largest enterprise certificate authorities with ~35% market share, serving 80%+ of the Fortune 100. It offers DV/OV/EV SSL/TLS certificates, code signing, and PKI solutions, known for its powerful CertCentral management platform and API automation.
Founded in 2019, ZeroSSL is a modern certificate authority offering free DV SSL certificates with an intuitive web management interface, ACME protocol, and REST API — with over 5 million certificates issued, it's the most popular free SSL alternative to Let's Encrypt.
Sectigo (formerly Comodo CA) is the world's largest commercial certificate authority with over 100 million certificates issued across 150+ countries, offering cost-effective SSL certificates, the SCM management platform, and comprehensive IoT/PKI solutions.
Founded in 1996, GlobalSign is one of the world's longest-running commercial CAs serving 150+ countries. Offers full SSL/TLS certificates, enterprise managed PKI, IoT device identity, and document signing solutions.
SSL Trust is a UK-based SSL certificate reseller aggregating Certum, Sectigo, DigiCert and more, offering multi-brand comparison and discounted enterprise SSL solutions.
Sectigo SSL Store (sectigostore.com) is the official authorized reseller platform for Sectigo SSL certificates. Prices are 30%-50% lower than DigiCert with DV certificates starting at $49.95/year, auto-issued in 10 minutes — ideal for budget-conscious SMBs and individual users.
SSLPoint is a multi-brand SSL certificate online marketplace, brokering certificates from Sectigo, DigiCert, GlobalSign, and other top CAs with bulk discounts up to 40% and unified management.
SSL2Buy is a budget SSL certificate marketplace offering multi-brand comparison, instant issuance, and price match guarantees for Sectigo, DigiCert, and more.
中国SSL (ssl.org.cn) is a China-based SSL certificate reseller with direct partnerships with DigiCert, Sectigo, and GlobalSign. It offers full Chinese-language interface, local payment methods, and SM2/SM3 national cryptography algorithm support for compliance-driven HTTPS deployments.
Sectigo SSL is the SSL certificate product line of Sectigo (formerly Comodo CA), offering the PositiveSSL budget DV entry point and full DV/OV/EV/Wildcard coverage — the most cost-effective commercial CA choice.
Namecheap SSL is the SSL certificate product line resold by Namecheap (founded 2000, Phoenix AZ), the world's second-largest domain registrar, featuring Sectigo PositiveSSL from $5/yr, multi-brand CA options, and free reissuance — the top choice for budget-conscious SSL buyers.
InstantSSL is Sectigo's (formerly Comodo CA) sub-brand focused on instant-issue SSL certificates, offering DV/OV/EV certificates with 30-day refund guarantee.
GoDaddy SSL certificates are GoDaddy-branded SSL products deeply integrated with GoDaddy hosting, offering one-click installation and full DV/OV/EV coverage from $7/mo first year, ideal for users already managing domains and hosting with GoDaddy.
Founded in 1998, Comodo CA (now operating under the Sectigo brand) is a globally recognized SSL certificate authority known for its PositiveSSL and EssentialSSL product lines, issuing over 50,000 certificates daily with industry-leading affordability.
Click SSL is an online SSL certificate platform offering Sectigo, DigiCert, GeoTrust brands with 1-minute purchase-to-issuance, instant DV activation, multi-language UI, and multiple payment options.
CheapSSLWeb is a Canada-based SSL certificate reseller offering Sectigo, DigiCert, GeoTrust brands at 20%-50% below official pricing, with instant DV issuance and a simple management panel.
Cheap SSL Security is a US-based SSL certificate reseller offering Sectigo, GeoTrust, and other major brands at 30%-50% below official pricing, with free unlimited reissuance and 24/7 technical support.
Cheap SSL Shop is a budget-focused SSL certificate online store offering DV certificates from $3.50/year across Sectigo, GeoTrust, and RapidSSL brands — ideal for cost-conscious personal site owners and small businesses.
Certum is a Polish Certificate Authority under Asseco Data Systems, founded 2002 in Poznań, Poland — one of few European CAs with its own trusted root — providing affordable SSL/TLS certificates, code signing, and eIDAS-qualified digital signatures.
Thawte is a well-known certificate authority founded in 1995 in South Africa, now a DigiCert sub-brand offering full DV/OV/EV SSL and code signing certificates, with OV starting at $80/yr and unique brand heritage in African SSL markets.
SSLS (SSL.com) is a US-based certificate authority with its own root infrastructure, offering DV/OV/EV SSL/TLS, code signing, document signing, and email certificates with ACME automation and a Chinese management panel — at 30%-50% below top-tier CA pricing.
GeoTrust is DigiCert's mid-range SSL certificate brand featuring QuickSSL Premium rapid issuance and full DV/OV/EV coverage starting at $7/yr, ideal for small to medium websites needing brand trust below DigiCert's premium tier.
SSL.com is a Houston Texas-based Certificate Authority founded in 2002, offering affordable DV/OV/EV SSL certificates from $39.95/yr, S/MIME, code signing, and enterprise PKI solutions.
GoGetSSL is a Latvia-based SSL certificate reseller aggregating 50+ CA brands, offering 30%-60% savings vs official pricing, free unlimited reissuance, and a 30-day money-back guarantee.