Was ist SSL?

Secure Sockets Layer (SSL) ist ein Sicherheitsprotokoll zur Herstellung einer verschlüsselten Verbindung zwischen einem Server und einem Client – typischerweise einem Webserver (Website) und einem Browser. Mit SSL werden also die Benutzerdaten während der Übertragung geschützt. Dies ist besonders wichtig bei sensiblen Informationen wie Kreditkartennummern, Sozialversicherungsnummern oder Anmeldedaten.

Alle Browser können über das SSL-Protokoll mit geschützten Webservern interagieren. Der Browser und der Server benötigen jedoch ein sogenanntes SSL-Zertifikat, um eine sichere Verbindung herstellen zu können.

Wer braucht SSL?

Jeder Websiteinhaber, der Informationen sicher über das Internet übertragen möchte, muss SSL-Zertifikate einsetzen. Heutzutage ist ein SSL-Zertifikat daher eher Notwendigkeit als Luxus. Abgesehen von der sicheren Datenübertragung erhöht ein SSL-Zertifikat das Vertrauen von Kunden und sorgt dafür, dass Ihre Website weiter oben in den Suchergebnissen angezeigt wird.

DigiCert in Plesk

DigiCert SSL ist keine eigenständige Erweiterung, sondern funktioniert nur in Verbindung mit der SSL It!-Erweiterung. Um SSL-Zertifikate ausstellen und verwalten zu können, müssen Sie sowohl die DigiCert SSL- als auch die SSL It!-Erweiterung installieren.

Was spricht für DigiCert?

• DigiCert ist ein führendes Unternehmen der Sicherheitsbranche und bietet eine vollständige Suite von SSL-Zertifikaten sowie Tools zur Zertifikatsverwaltung für Unternehmen jeder Größe.
• DigiCert genießt das Vertrauen von über 115.000 Organisationen in über 180 Ländern, darunter namhafte Organisationen in den Bereichen Finanzen, Gesundheitswesen, E-Commerce und Technologie.
• DigiCert PKI-Verwaltungstools unterstützen Unternehmen bei der Zertifikatsverwaltung. Für ein sicheres Netzwerk ist mehr erforderlich als SSL-Zertifikate zu kaufen und zu installieren: richtige Konfiguration, Schwachstellenscans, laufende Überwachung und rechtzeitige Erneuerung.
• Alle DigiCert SSL-Zertifikate sind mit einer Reihe herausragender Sicherheitsmerkmale ausgestattet. Dazu gehören tägliches Scannen nach Malware, Seal-in-Search-Technologie und das äußerst vertrauenswürdige Norton-Siegel.
• DigiCert verfügt über eine breite Palette von hochwertigen SSL-Zertifikaten zur Extended Validation (EV) sowie Organisations- und Domainvalidierung.
• DigiCert verfügbt über vertrauenswürdige und seit langem etablierte SSL-Zertifikatsmarken wie Symantec, Thawte, GeoTrust und RapidSSL.

1.12.4 (5 May 2025)

• [*] Updated the description for Domain Control Validation (DCV) by email in the certificate issuance form to comply with DigiCert's end-of-life support for WHOIS-based domain validations.

1.12.3 (31 January 2025)

• [*] Internal improvements.
• [*] The DigiCert SSL extension is now compatible with Plesk Obsidian 18.0.68.

1.12.2 (15 July 2024)

• [*] Internal improvements.

1.12.1 (4 April 2024)

• [*] Internal improvements.

1.12.0 (29 Math 2024)

• [-] The extension will not throw deprecation warnings while issuing certificate. (EXTPLESK-5374)

1.11.3 (24 January 2022)

• [!] The extension now validates wildcard and OV certificates via email and not via file upload because of DigiСert policy changes.

1.11.2 (12 November 2021)

• [*] Internal improvements.

1.11.1 (28 September 2021)

• [*] Internal improvements.

1.11.0 (22 September 2021)

• [*] The products' names now align with the DigiCert certificates' names.
• [*] The extension now provides more detailed information about the process of issuing certificates.

1.10.0 (01 April 2021)

• [-] The extension now shows a link to the page with a detailed explanation of how DigiCert validates organizations.(EXTPLESK-2548)

1.9.6 (17 March 2021)

• [*] Wildcard certificates from DigiCert now secure webmail on domains. This improvement comes into effect as soon as the SSL It! extension version 1.7.9 is released.

1.9.5 (11 March 2021)

• [-] The extension now shows correct statuses of www and wildcard components when wildcard certificate is installed. (EXTPLESK-2097)
• [-] The extension now validates domain correctly while a certificate is being issued. (EXTPLESK-2361)

1.9.4 (21 January 2021)

• [-] The extension now shows correct statuses of the organization validation steps. (EXTPLESK-2343)

1.9.3 (27 November 2020)

• [+] Customers can now choose methods of domain control validation (DCV).
• [+] Customers now receive more detailed information about DigiCert organization validation process.
• [+] Customers now see a suggestion to turn off a 301 redirect from HTTP to HTTPS to pass DCV while a certificate is being issued.

1.9.2 (03 November 2020)

• [*] Internal improvements.

1.9.1 (16 October 2020)

• [+] SSL/TLS certificates from DigiCert issued for a domain (for example, example.com) now also secure the www subdomain (www.example.com) automatically.
• [*] The extension no longer supports the legacy DigiCert API. To issue SSL/TLS certificates from DigiCert, users need to install the SSL It! extension.
• [-] Translated the DigiCert description shown in the SSL It! extension. (EXTPLESK-2094)
• [-] SSL/TLS certificates from DigiCert do not support SAN. Fixed the incorrect description that said otherwise. (EXTPLESK-2047)

1.9.0 (11 September 2020)

• [*] The DigiCert SSL extension now supports DigiCert APIv2.
• [*] The DigiCert SSL extension UI has been integrated with the SSL It! extension. From now on, please issue SSL/TLS certificates via SSL It! The DigiCert standalone UI can be used to finish orders placed via the legacy DigiCert API. The DigiCert standalone UI does not support DigiCert APIv2 and will be removed in the future.
• [*] By default, SSL It! only shows a small subset of all available SSL/TLS certificates. To see more certificates, go to "Extensions" > "My Extensions" > "SSL It!" and click "Configure".
• [-] Ordering a secure site wildcard certificate from Symantec for a wildcard subdomain (for example, "*.example.com") no longer fails. (EXTPLESK-1600)
• [-] Ordering a RapidSSL certificate no longer fails when the certificate's owner country is set to "United Kingdom of Great Britain and Northern Ireland". (EXTPLESK-1695)
• [-] Starting to order a certificate for a subscription and then renaming it before finishing the order will no longer result in failures. (EXTPLESK-1634)
• [-] Fixed several translation issues.

1.8.4 (07 September 2020)

• [-] Fixed the issue where icons for DigiCert products were not shown in "SSL\TLS Certificates". (EXTPLESK-2034)

1.8.3 (12 August 2020)

• [-] Improved the overall performance of the Digicert SSL extension as a plugin of the SSL It! extension. (EXTPLESK-2017)

1.8.2 (17 July 2020)

• [-] Users can specify "The United Kingdom (UK)" in contact information while issuing a certificate. (EXTPLESK-1695)

1.8.1 (4 December 2019)

• [*] The Encryption Everywhere SSL/TLS certificates are no longer available for issue (even if they are specified in filteredProducts in the panel.ini file) because the corresponding API is reaching EOL. Issue free certificates from Let's Encrypt instead. The already issued Encryption Everywhere certificates keep working until their expiration dates.

1.8.0 (3 October 2019)

• [*] The extension can now be backed up and restored.
• [-] Paid certificates can now be used to secure domains with internationalized domain names. (EXTPLESK-1241)

1.7.1 (9 September 2019)

• [*] Restored the ability to issue SSL/TLS certificates in Plesk versions earlier than 17.8.

1.7.0 (23 August 2019)

• [+] The extension now informs when a paid SSL/TLS certificate is about to expire and makes it easier to renew it. Users no longer need to find the certificate they bought earlier: the "Renew" button opens Plesk Online Store where they can buy the same certificate.
• [*] Internal stability and security improvements.
• [-] SSL/TLS certificates can now be installed on IDN domains. (EXTPLESK-1207)
• [-] SSL/TLS certificates can now be issued if a company name contains the ampersand (&). (EXTPLESK-1211)

1.6.2 (14 August 2019)

• [*] Performance improvements. We strongly recommend that you update the extension.

1.6.1 (8 August 2019)

• [*] Internal security improvements. We strongly recommend that you update the extension.

1.6.0

• [-] Fixed the extension's meta information (the vendor website, Help and Support links).
• [-] Wildcard subdomains can no longer be selected on the extension's main page because DigiCert cannot secure them. (EXTPLESK-869)
• [-] Digicert SSL is no longer shown for wildcard subdomains. (EXTPLESK-564)
• [-] Certificate orders for domains which names start with capital letters are now shown in the extension's interface. (EXTPLESK-800)
• [-] If debug logging was enabled, the log no longer shows excessive messages about optional extensions (for example, SSL It!) not being installed. (EXTPLESK-632)

1.5.1

• [*] Internal security improvements. We highly recommend that you update the extension.

1.5.0

• [*] Added integration with the SSL It! extension.
• [-] Paid certificates can now be again ordered via the extension. (EXTPLESK-461)

1.4

• Rebranded the extension to Digicert.
• Added the ability to reorder failed order.
• Fixed the issue when it was impossible to create certificate for countries like GB.

1.3

• Fix extension for Plesk Onyx 17.8

1.2

• Added support for German, Spanish, French, Italian, Japanese, Chinese and Taiwan language.
• Improved Chain of Trust.

1.1

• Error message altered. Now API response message will show up.
• Improved basic DV file content management.
• Extension will work when DNS service is disabled.
• Added information icon to show more details about API response message.

1.0

• Initial release