Last updated: 
1 month 3 days ago
Group Manager

Welcome to the Jisc Certificate Service group.

The service offers a number of different X509 SSL certificates, including Extended Validation certificates that give users the highest possible assurance, as well as S/MIME email certificates for digitally signing emails. Jisc has an agreement with the Certificate Authority, QuoVadis who is the provider of the certificates.

The service has been running since 2006 and has issued many thousands of certificates to organisations in UK research and education.

This is a Community group where users can obtain relevant information, receive service updates and provide feedback.


As a user of the certificate service, I wanted to let you know that our supplier is increasing the tariff prices on this service in addition to increasing administration costs. This means that as of 1 October 2019, the cost of credits will change as per the table below.

Any credits bought between now and 1st of October will be charged at the current price and remain valid for two years.

Mixed SSL Credits:


Jisc’s Certificate Service is due for re-procurement in 2021 and as part of this process we want to get your views.

We are inviting those who use the service to take part in a workshop on Tuesday 24th September at Jisc’s offices in London. During the day we will be asking for your feedback on the existing service and provide you with the opportunity to discuss any additional functionality that would enhance the service.

The workshop will start at 10:30 and finish at 15:00 – lunch will be provided.


Change to Certificate Service – from 1st March 2018

Q1) What is the change in the maximum duration of certificates?

    A) The maximum duration will be limited to 2 years, currently this is 3 years.

Q2) What certificates are affected?

    A) Only medium assurance Organisation Validated (OV) certificates. High assurance Extended Validation (EV) and Wildcard  certificates are already limited to 2 years.

Q3) Who is driving this change?


Availability of SHA-256 certificates: 14 October 2014
We’re pleased to announce an agreement has been reached between TERENA and Comodo which will enable customers to obtain SHA-256 certificates. This is available with immediate effect and all certificates obtained from the service will be by default SHA-256.

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