When generating a Certificate Signing Request (CSR), certain characters are not permitted because they can cause errors during SSL certificate creation.
Do not use any of the following characters in your CSR:
- <
- >
- ~
- !
- @
- #
- $
- %
- ^
- *
- /
- \
- (
- )
- ?
- &
- ,
⚠️ Important Notes:
- The asterisk (*.) is reserved exclusively for Wildcard certificate CSRs.
- Do not include http:// or https:// in the Common Name field.
By following these rules, you’ll ensure your CSR is valid and ready for SSL enrollment without unnecessary delays.