Snapshot-based public health archive
See what Canadian public health websites used to say, even after they change.
HealthArchive.ca is an independent, volunteer-led project that preserves time-stamped snapshots of selected Canadian public health web pages. It helps researchers, journalists, educators, clinicians, and the public cite what was published at specific points in time—even if pages move, are updated, or disappear.
Project snapshot
Live metrics from the archive backend.
- Archived snapshots
- 0snapshots
- Unique pages
- 0pages
Who is this for?
The archive is designed first for researchers, journalists, and educators, and is also useful for clinicians and the public who need past public health guidance to stay citable and discoverable as websites shift over time.
Clinicians & public health practitioners
Revisit past guidance on subjects such as COVID-19 vaccination, seasonal influenza, naloxone distribution, or mpox to understand how recommendations have evolved.
Researchers & data journalists
Link analyses and publications to the exact wording, tables, and dashboards that were visible on a given date, improving reproducibility and auditability.
Members of the public
Explore how key public health messages and risk communication have changed across time while keeping official sites as the primary source of up-to-date guidance.
What is HealthArchive.ca?
HealthArchive.ca is an independent, non-governmental archive of Canadian public health web content. It uses modern web-archiving tools to capture, store, and replay snapshots of key public health websites, starting with federal sources such as the Public Health Agency of Canada and Health Canada.
Government websites are living documents: pages move, content changes, and dashboards appear and disappear. HealthArchive exists to preserve a transparent, verifiable record of what was publicly available at a point in time—not to replace official guidance or offer medical advice.
What this site is (and isn't)
- Is: A citable archival record of what public health websites displayed at a specific time, with capture dates and stable snapshot links.
- Is not: Current guidance, medical advice, or an official government website.
- Coverage is still expanding. If you can't find a page, it may not have been captured yet.
- For up-to-date recommendations, always consult the official source website (e.g., canada.ca/public-health).