Trusted SSL certificates · S/MIME certificates · Affordable · GDPR compliant · First Class Support
On July 25, 2025, interssl.com was the target of a Denial-of-Service botnet attack involving over 512,000 IPs worldwide. The attack was successfully mitigated. All services remained available! IP address list & bash scripts for defense are available as free download.
InstantSSL OV
OV » Organization Validation: SSL certificates from COMODO® · (RSA and ECDSA keys supported)
Genuine certificate from COMODO, Organization Validation (OV). Domain ownership as well as business registration information will be validated. Registered companies only!
InstantSSL and InterSSL site seal
50.000 US$ warranty
99.9% browser compatibility
Certificate Transparency
SHA-256 with 4096 bits key-length
Free e-mail support
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InstantSSL - Premium Wildcard OV
Genuine certificate from SECTIGO (formerly COMODO), Organization Validation (OV). Domain ownership as well as business registration information will be validated. Registered companies only!
InstantSSL and InterSSL site seal
250,000 US$ warranty
99.9% browser compatibility
Certificate Transparency
SHA-256 with 4096 bits key-length
Free e-mail support
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Sectigo - Multi-Domain OV (1 Common Name + 2 SAN, max 100) · Perfect for Exchange (SAN, UCC)
Genuine certificate from COMODO, domain validated (OV). Domain ownership as well as business registration information will be validated. Registered companies only!
Secures multiple domains, e.g. shop1.com, www.shop1.net, shop.company.com
Attention every subdomain counts, e.g. shop1.com and www.shop1.com = two domains!
Licensed Servers => unlimited
PositiveSSL and InterSSL site seal
1,000,000 US$ SECTIGO warranty
99.9% browser compatibility
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Sectigo - Multi-Domain Wildcard OV (1 Common Name + 2 Wildcard SAN, max 100) (SAN, UCC)
Genuine certificate from COMODO, domain validated (OV). Domain ownership as well as business registration information will be validated. Registered companies only!
Secures e.g. shop.com + 2 Wildcard SAN e.g. *.shop.com and *.sub.shop.com
Licensed Servers => unlimited
1,000,000 US$ SECTIGO warranty
99.9% browser compatibility
Certificate Transparency
SHA-256 with 4096 bits key-length
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InstantSSL Pro - Single Domain OV
Genuine certificate from COMODO, Organization Validation (OV). Domain ownership as well as business registration information will be validated. Registered companies only!
