## Certificate Management

When you need to use https acceleration, you need to upload a certificate.

Enter the certificate management page, click <code>Upload Certificate</code>. If you need to purchase a certificate, you can click <code>Purchase Certificate</code> to go to the <strong>USSL Configuration Platform</strong> to operate.

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Enter <code>Certificate Name</code>, <code>Upload Authorized Certificate (.crt file)</code>, <code>Authorized Private Key (.key file)</code>, <code>CA Agency Certificate (.crt file)</code>.

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If your certificate has been uploaded to USSL, you can select it by choosing the purchased upload. You need to customize the certificate name and select <strong>Unexpired and the certificate status is normal</strong> certificate.

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Note:

<li /> After uploading the certificate, you still need to go to the domain details page to select the corresponding certificate to open https acceleration.

<li /> If you need to replace the certificate, please upload a new one and go to the domain details page to bind the new certificate.

<li /> If additional overseas HTTPS is required, please note the cost of HTTPS requests, for details see [CDN Overseas HTTPS Request Billing](/docs/ucdn/charge/flowday_new#cdn%e5%a2%83%e5%a4%96https%e8%af%b7%e6%b1%82%e6%95%b0)

## Related APIs:

| API | Description |
|:---|:---|
|[AddCertificate](/docs/api/ucdn-api/add_certificate)| Add Certificate |
|[DeleteCertificate](/docs/api/ucdn-api/delete_certificate)| Delete Certificate |
|[GetCertificateV2](/docs/api/ucdn-api/get_certificate_v2)| Get Certificate |