When an archive link belongs in the first source note

An archive link belongs in the first source note when the exact wording may disappear, change meaning, or become hard to prove later.

Not every source needs an archive link at the top. Stable PDFs, DOI-backed papers, statutes with formal versioning, and long-lived documentation pages may already have durable identifiers. But some live pages are fragile: pricing pages, limited-time policy notices, help-center articles, campaign pages, app listings, public dashboards, and pages that change by region or login state.

Use an archive link early when the summary depends on one specific sentence, number, deadline, plan limit, eligibility phrase, or comparison table. The archive is not more authoritative than the publisher. It is evidence of what was visible at the time of access. That distinction should be clear in the note.

A practical first note can say: “Live page accessed June 23, 2026; archive saved the same day because the claim depends on the listed plan limits.” This explains why the archive exists without making the note feel suspicious or adversarial.

Avoid archiving private, personal, paid, or login-only material that should not be preserved publicly. Also avoid using archive links to dodge corrections. If the live source changes because the old information was wrong, the summary should be corrected. The archive helps readers understand the trail, not freeze an outdated answer forever.

When an archive link belongs in the first source note

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