What is the difference between SSL certificate and CSR?

A CSR (Certificate Signing Request) is a file containing your public key and organizational information that you submit to a Certificate Authority. An SSL certificate is the signed document returned by the CA that authenticates your domain and enables HTTPS encryption. You generate the CSR first, send it to a CA, and receive the SSL certificate back after validation.

Can I use a 2048-bit key or should I use 4096-bit for my SSL certificate?

2048-bit RSA keys are sufficient for current security standards and recommended by most CAs and industry guidelines. 4096-bit keys provide additional security margin but consume more processing power and are typically unnecessary unless you're in a high-security environment or have specific compliance requirements. Most websites use 2048-bit for optimal balance between security and performance.

How long does it take to generate an SSL certificate with this tool?

The CSR and private key generation happens instantly within seconds. However, the total time to obtain a valid SSL certificate depends on your CA's validation process, which typically takes 5 minutes to 24 hours depending on the certificate type (DV, OV, or EV). This tool generates the CSR file you need to request the certificate from your chosen CA.

What should I do with the private key after generating a CSR?

Store your private key securely in a safe location, such as encrypted storage or a secure server. Never share it with anyone, including your Certificate Authority. Keep backups in case you need to reinstall the certificate later. The private key is essential for installing and using your SSL certificate on your server.

Can I generate a certificate for multiple domains at once?

Yes, you can use Subject Alternative Names (SANs) to include multiple domains in a single certificate. This allows one certificate to secure your primary domain plus additional domains or subdomains. Wildcard certificates (*.example.com) are another option for securing all subdomains under a single domain. Specify all domains during the CSR generation process.

SSL Certificate & CSR Generator

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Khóa

Kết quả

Common Name (CN) *

Tổ chức (O) *

Phòng ban (OU)

Quốc gia *

Tỉnh/Thành phố (ST)

Thành phố (L)

SAN (Subject Alternative Names)

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SSL Certificate & CSR Generator

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