Certificate archive
| Name | Owner | Period | Certificate |
|---|---|---|---|
| Guardian Media Group | Guardian News and Media | March 2019 | View |
| Guardian Media Group | Guardian News and Media | February 2019 | View |
| Guardian Media Group | Guardian News and Media | January 2019 | View |
| Guardian Media Group | Guardian News and Media | December 2018 | View |
| Guardian Media Group | Guardian News and Media | November 2018 | View |
| Guardian Media Group | Guardian News and Media | October 2018 | View |
| Guardian Media Group | Guardian News and Media | September 2018 | View |
| Guardian Media Group | Guardian News and Media | August 2018 | View |
| Guardian Media Group | Guardian News and Media | July 2018 | View |
| Guardian Media Group | Guardian News and Media | June 2018 | View |
| Guardian Media Group | Guardian News and Media | May 2018 | View |
| Guardian Media Group | Guardian News and Media | April 2018 | View |
| Guardian Media Group | Guardian News and Media | March 2018 | View |
| Guardian Media Group | Guardian News and Media | February 2018 | View |
| Guardian Media Group | Guardian News and Media | January 2018 | View |
| Guardian Media Group | Guardian News and Media | December 2017 | View |
| Guardian Media Group | Guardian News and Media | November 2017 | View |
| Guardian Media Group | Guardian News and Media | October 2017 | View |
| Guardian Media Group | Guardian News and Media | September 2017 | View |
| Guardian Media Group | Guardian News and Media | August 2017 | View |
| Guardian Media Group | Guardian News and Media | July 2017 | View |
| Guardian Media Group | Guardian News and Media | June 2017 | View |
| Guardian Media Group | Guardian News and Media | May 2017 | View |
| Guardian Media Group | Guardian News and Media | April 2017 | View |
| Guardian Media Group | Guardian News and Media | March 2017 | View |
| Guardian Media Group | Guardian News and Media | February 2017 | View |
| Guardian Media Group | Guardian News and Media | January 2017 | View |
| Guardian Media Group | Guardian News and Media | December 2016 | View |
| Guardian Media Group | Guardian News and Media | November 2016 | View |
| Guardian Media Group | Guardian News and Media | October 2016 | View |
| Guardian Media Group | Guardian News and Media | September 2016 | View |
| Guardian Media Group | Guardian News and Media | August 2016 | View |
| Guardian Media Group | Guardian News and Media | July 2016 | View |
| Guardian Media Group | Guardian News and Media | June 2016 | View |
| Guardian Media Group | Guardian News and Media | May 2016 | View |
| Guardian Media Group | Guardian News and Media | April 2016 | View |
| Guardian Media Group | Guardian News and Media | March 2016 | View |
| Guardian Media Group | Guardian News and Media | February 2016 | View |
| Guardian Media Group | Guardian News and Media | January 2016 | View |
| Guardian Media Group | Guardian News and Media | December 2015 | View |
| Guardian Media Group | Guardian News and Media | November 2015 | View |
| Guardian Media Group | Guardian News and Media | October 2015 | View |
| Guardian Media Group | Guardian News and Media | September 2015 | View |
| Guardian Media Group | Guardian News and Media | August 2015 | View |
| Guardian Media Group | Guardian News and Media | July 2015 | View |
| Guardian Media Group | Guardian News and Media | June 2015 | View |
| Guardian Media Group | Guardian News and Media | May 2015 | View |
| Guardian Media Group | Guardian News and Media | April 2015 | View |
| Guardian Media Group | Guardian News and Media | March 2015 | View |
| Guardian Media Group | Guardian News and Media | February 2015 | View |
| Guardian Media Group | Guardian News and Media | January 2015 | View |
| Guardian Media Group | Guardian News and Media | December 2014 | View |
| Guardian Media Group | Guardian News and Media | November 2014 | View |
| Guardian Media Group | Guardian News and Media | October 2014 | View |
| Guardian Media Group | Guardian News and Media | September 2014 | View |
| Guardian Media Group | Guardian News and Media | August 2014 | View |
| Guardian Media Group | Guardian News and Media | July 2014 | View |
| Guardian Media Group | Guardian News and Media | June 2014 | View |
| Guardian Media Group | Guardian News and Media | May 2014 | View |
| Guardian Media Group | Guardian News and Media | April 2014 | View |
| Guardian Media Group | Guardian News and Media | March 2014 | View |
| Guardian Media Group | Guardian News and Media | February 2014 | View |
| Guardian Media Group | Guardian News and Media | January 2014 | View |
| Guardian Media Group | Guardian News and Media | December 2013 | View |
| Guardian Media Group | Guardian News and Media | November 2013 | View |
| Guardian Media Group | Guardian News and Media | October 2013 | View |
| Guardian Media Group | Guardian News and Media | September 2013 | View |
| Guardian Media Group | Guardian News and Media | August 2013 | View |
| Guardian Media Group | Guardian News and Media | July 2013 | View |
| Guardian Media Group | Guardian News and Media | June 2013 | View |
| Guardian Media Group | Guardian News and Media | May 2013 | View |
| Guardian Media Group | Guardian News and Media | April 2013 | View |
| Guardian Media Group | Guardian News and Media | March 2013 | View |
| Guardian Media Group | Guardian News and Media | February 2013 | View |
| Guardian Media Group | Guardian News and Media | January 2013 | View |
| Guardian Media Group | Guardian News and Media | December 2012 | View |
| Guardian Media Group | Guardian News and Media | November 2012 | View |
| Guardian Media Group | Guardian News and Media | October 2012 | View |
| Guardian Media Group | Guardian News and Media | September 2012 | View |
| Guardian Media Group | Guardian News and Media | August 2012 | View |
| Guardian Media Group | Guardian News and Media | July 2012 | View |
| Guardian Media Group | Guardian News and Media | June 2012 | View |
| Guardian Media Group | Guardian News and Media | May 2012 | View |
| Guardian Media Group | Guardian News and Media | April 2012 | View |
| Guardian Media Group | Guardian News and Media | March 2012 | View |
| Guardian Media Group | Guardian News and Media | February 2012 | View |
| Guardian Media Group | Guardian News and Media | January 2012 | View |
| Guardian Media Group | Guardian News and Media | December 2011 | View |
| Guardian Media Group | Guardian News and Media | November 2011 | View |
| Guardian Media Group | Guardian News and Media | October 2011 | View |
| Guardian Media Group | Guardian News and Media | September 2011 | View |
| Guardian Media Group | Guardian News and Media | August 2011 | View |
| Guardian Media Group | Guardian News and Media | July 2011 | View |
| Guardian Media Group | Guardian News and Media | June 2011 | View |
| Guardian Media Group | Guardian News and Media | May 2011 | View |
| Guardian Media Group | Guardian News and Media | April 2011 | View |
| Guardian Media Group | Guardian News and Media | March 2011 | View |
| Guardian Media Group | Guardian News and Media | February 2011 | View |
| Guardian Media Group | Guardian News and Media | January 2011 | View |
| Guardian Media Group | Guardian News and Media | December 2010 | View |
| Guardian Media Group | Guardian News and Media | November 2010 | View |
| Guardian Media Group | Guardian News and Media | October 2010 | View |
| Guardian Media Group | Guardian Regional Media | September 2010 | View |
| Guardian Media Group | Guardian Regional Media | August 2010 | View |
| Guardian Media Group | Guardian Regional Media | July 2010 | View |
| Guardian Media Group | Guardian Regional Media | June 2010 | View |
| Guardian Media Group | Guardian Regional Media | May 2010 | View |
| Guardian Media Group | Guardian Regional Media | April 2010 | View |
| Guardian Media Group | Guardian Regional Media | March 2010 | View |
| Guardian Media Group | Guardian Regional Media | February 2010 | View |
| Guardian Media Group | Guardian Regional Media | January 2010 | View |
| Guardian Media Group | Guardian Regional Media | December 2009 | View |
| Guardian Media Group | Guardian Regional Media | November 2009 | View |
| Guardian Media Group | Guardian Regional Media | November 2009 | View |
| Guardian Media Group | Guardian Regional Media | October 2009 | View |
| Guardian Media Group | Guardian Regional Media | August 2009 | View |
| Guardian Media Group | Guardian Regional Media | August 2009 | View |
| Guardian Media Group | Guardian Regional Media | June 2009 | View |
| Guardian Media Group | Guardian Regional Media | May 2009 | View |
| Guardian Media Group | Guardian Regional Media | April 2009 | View |
| Guardian Media Group | Guardian Regional Media | March 2009 | View |
| Guardian Media Group | Guardian Regional Media | February 2009 | View |
| Guardian Media Group | Guardian Regional Media | January 2009 | View |
| Guardian Media Group | Guardian Regional Media | December 2008 | View |
| Guardian Media Group | Guardian Regional Media | November 2008 | View |
| Guardian Media Group | Guardian Regional Media | October 2008 | View |
| Guardian Media Group | Guardian Regional Media | September 2008 | View |
| Guardian Media Group | Guardian Media Group | August 2008 | View |
| Guardian Media Group | Guardian Media Group | July 2008 | View |
| Guardian Media Group | Guardian Media Group | June 2008 | View |
| Guardian Media Group | Guardian Media Group | May 2008 | View |
| Guardian Media Group | Guardian Media Group | April 2008 | View |
| Guardian Media Group | Guardian Media Group | March 2008 | View |
| Guardian Media Group | Guardian Media Group | February 2008 | View |
| Guardian Media Group | Guardian Media Group | January 2008 | View |
| Guardian Media Group | Guardian Media Group | December 2007 | View |
| Guardian Media Group | Guardian Media Group | November 2007 | View |
| Guardian Media Group | Guardian Media Group | October 2007 | View |
| Guardian Media Group | Guardian Media Group | September 2007 | View |
| Guardian Media Group | Guardian Media Group | August 2007 | View |
| Guardian Media Group | Guardian Media Group | July 2007 | View |
| Guardian Media Group | Guardian Media Group | July 2007 | View |
| Guardian Media Group | Guardian Media Group | May 2007 | View |
| Guardian Media Group | Guardian Media Group | April 2007 | View |
| Guardian Media Group | Guardian Media Group | April 2007 | View |
| Guardian Media Group | Guardian Media Group | February 2007 | View |
| Guardian Media Group | Guardian Media Group | January 2007 | View |
