As part of the ongoing government wide Web Renewal efforts, please note that as of August 31, 2017, the GeoGratis Catalogue and Search tools will no longer be available. As of that date, you should consult the Open Government of Canada search tool.
The framework is still in use to display geographic and topographical data in the Open Data portal.
Geogratis is being shuttered on December 31st, the WMS services will be gone.