Wayback observation

A Wayback observation is a read of an agency's public Upwork page taken from a capture held by the Internet Archive's Wayback Machine, stored by Upwork Insights as an observation dated at the time of the capture, not of the reading.

The archive stores copies of public web pages as they were on a given day. When a capture of an agency page exists, the index fetches the original page as archived, extracts the same public fields a live read would, and stores them as an observation with the capture's timestamp and the source marked as archived. The figures are whatever the page showed on that day; nothing is adjusted. If a later live read exists, the record itself comes from the live read and the archived figures sit in the observation history, marked with a clock symbol.

The value of an archived observation is time. A run-rate needs two reads at least 14 days apart, and a page the index has only just discovered would otherwise say "pending" for a fortnight or more. A capture from last year supplies the earlier point, so some agencies show a measured run-rate on their first day in the index, over a long observation window that shortens as the page is re-read live.

The limits are the archive's. Captures exist only for pages someone archived, at whatever dates, and an old capture can show a page before the agency hid its earnings or changed its name. The index uses the capture as evidence of the counter on that day and nothing more.