Choose a source family
Document an older page or infrastructure while retaining observation dates and limits.
Separate original URL, capture date and the date asserted in the content. Check loaded resources in an archive: an image or script may be missing or from another time. For a domain or network, also fix the period of the observed registration or announcement.
Wayback retains captures; Gallica and the National Archives describe documents and collections; ICANN and RIPEstat expose registration or network data. An archived page, domain registrant and infrastructure operator are different objects.
A page is absent from archives. Extend URL variants and periods, then record the searched coverage. No capture does not prove that the page never existed.
INT
Query public domain, IP network and ASN registration data through RDAP.
Some data may be redacted; registration does not prove who operates a website.
INT
Compare dated web-page captures and retain a link to a viewable version.
Captures can be partial; their date and content do not validate the page’s claims.
FR
Explore digitised BnF and partner collections to place historical claims in context.
A digitised document preserves a source, not the truth of every claim in it; check edition and provenance.
FR
Find fonds, inventories and digitised records held by the French National Archives.
An inventory describes holdings; verify the reference, access conditions and record itself.
INT
Examine public routing, IP prefix and autonomous system data in RIPEstat.
A network announcement is a dated technical relationship; it does not prove website ownership or content authorship.
No. It dates a retained observation. Internal statements, metadata or other records may help qualify the timeline, with their own limitations.
Topic pages to select a service and understand what its result can establish.
Choose between a directory, registry, filing, interest declaration and international identifier according to the fact you need to establish.
10 results
Retrieve the text, version and procedure while separating decisions, announcements and commentary.
6 results
Choose a producer, catalogue or series by unit, coverage and research question.
21 results
Document an older page or infrastructure while retaining observation dates and limits.
5 results
Choose a map, collaborative object or satellite product by scale and observation date.
5 results
Locate a publication and then verify territory, procedure and title status in the relevant registry.
6 results
Separate work, author, organisation, repository, journal and trial to cite the right object and version.
13 results
