From August 19th 2020, SECTIGO issues SSL certificates with a maximum lifetime of 398 days (13 months) as specified by CA/Browser consortium. SSL certificates with a longer lifetime must be re-issued annually (free of charge). You'll receive reminders via e-mail. SSL certificates issued before August 19th 2020 remain valid until their planned expiry date. Code Signing & S/MIME certificates are not affected and remain valid until their planned expiry date.
CSR/KEY Online Generator
ATTENTION When using your domain including 'www.' in the COMMON NAME field, your SSL certificate will be working WITH *and* WITHOUT 'www.' (e.g. www.domain.com and domain.com). For using a specific subdomain, enter that subdomain including the full domain name, e.g. subdomain.domain.com. For wildcard SSL certificates, please use the * (asterisk) placeholder, e.g. *.domain.com in the field COMMON NAME.