Keep these fields in the source log
- Requested URL and archive URL
- Capture timestamp and timezone
- Missing elements or content loaded from the live site
Public research resources · FR / EN
What did a page show at a particular time ? Practical method, external tools, source log and interpretation limits.
External services · no results hosted here · queries sent only when you click a provider link.

An archive establishes an available capture, not initial publication or author identity. Do not make sensitive information public by archiving it.
Editorial selection of external services and resources, described using their portals or documentation. References reviewed on 3 October 2026; availability, prices, quotas and interface languages can change. Subscriptions and paid features were not tested.
3 catalogue entries
Inspect historical URL snapshots and compare page changes.
Limit: Capture time is not publication time; scripts and media may be missing.
Locate collections, books, recordings and documents in a digital library.
Limit: Metadata and rights vary by collection; check the specific item.
Preserve a web reference and retain its archive link with a citation.
Limit: Creating captures depends on the account; avoid archiving sensitive content.
No matching catalogue entry. Try another term or reset the filters.
These downloads contain tool descriptions and links, not provider search results. Retain limitations, references and review dates when reusing the catalogue.
On the selected provider’s website, in a new tab. IIS does not retrieve, host or display investigation results. Directory filters only filter the editorial catalogue.
The launchpad builds links inside your browser, without sending the query to IIS or storing it in browser storage. Clicking a prepared link sends the query to the named provider, under its own rules.
No. Access may require an account, subscription, software or quota. The catalogue is available in French and English; providers set their interface languages, coverage and conditions.
No. Index coverage, spelling, language, access limits and capture dates can explain a missing result. Record what was searched and what remains unknown.