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Methodology

Every status on Standing is based on documented evidence from named sources, and every classification is reviewed and personally approved by a person before it's published — never generated or published automatically. This page explains exactly how that works.

The four statuses

Every site is classified into one of four descriptive statuses — never a numerical risk score. A score implies a precision this kind of evidence can't actually support; a named category, backed by a written rationale you can read yourself, is more honest about what we do and don't know.

Safe

No significant documented threats to this site's current survival, integrity, or accessibility.

Moderate Concern

Conservation or other pressures are documented, but without imminent risk to the site.

High Concern

Serious, currently active threats are documented, or major historical damage remains substantially unrepaired.

Critical Concern

Severe, currently active threats to the site's survival are documented by credible sources.

Confidence, kept separate from status

Alongside its status, every site also carries a confidence level — how well the currently available evidence actually supports that status. Confidence never changes which status a site gets; the two are reported honestly side by side. A site can be High Concern with Developing confidence, meaning the situation is serious but still unfolding and the evidence is still coming in — rather than forcing more certainty than the evidence actually supports.

Confirmed

Multiple corroborating high-tier sources support this status.

Supported

Credible sources support this status, with some limits on corroboration.

Developing

The situation is actively changing and evidence is still emerging.

Insufficient Evidence

Available sources are too limited to assess this status with confidence.

Current conditions, not a running tally of history

A site's full history is never hidden — every recorded event and every past status stays on its profile page permanently, in a timeline and a status history anyone can read. But a site's current status describes its condition as of the most recent review, not a cumulative tally of everything that has ever happened to it. Historical damage that has since been repaired or stabilized doesn't keep a site at an elevated status forever.

Historical damage is documented in the site's record, but the current classification is based on present conditions and the most recent credible evidence.

Stonehenge is a good example of this in the direction of improvement: a proposed road tunnel near the monument raised serious concern between 2020 and 2024, and UNESCO came close to an official “in danger” listing over it. That episode is preserved permanently in Stonehenge's timeline, but the tunnel project was cancelled and its planning consent formally revoked — so the current Moderate Concern status reflects that the acute threat has passed, not the 2020–2024 episode itself.
Ancient City of Aleppo shows the other side of it: the site suffered severe, well-documented damage during 2012–2016 fighting, permanently recorded in its timeline. Its current High Concern status isn't based on that old damage by itself — it's based on the fact that repair of the site remains substantially incomplete today, and the wider region has continued to see unrest. That's a present, not just historical, concern.

Where the information comes from

Sources are weighed in a rough hierarchy: primary/official sources (UNESCO, national heritage ministries, and organizations like ALIPH, Blue Shield, and UNOSAT) carry the most weight; then institutional and academic sources (peer-reviewed research, universities, museums, established heritage organizations); then reputable journalism (major wire services and established news outlets); and finally reference sources like Wikipedia, used only to confirm basic facts such as a site's name or coordinates — never as the sole support for a threat claim or a status.

Being a higher-tier source isn't an automatic guarantee of reliability — an individual source can still be flagged if its evidence doesn't hold up to scrutiny, and a flagged source can never, by itself, be the basis for a status. Every site profile lists its actual sources, so you can check the evidence yourself rather than take our word for it.

AI assists with researching and drafting site profiles, but it does not decide or publish classifications on its own — every status is personally reviewed and approved by a person before it goes live.

Digital Preservation Index

Separately from threat status, Standing tracks how extensively each site has been documented and made publicly accessible online — across five categories: professional photography, archival/official records, 3D digital documentation (laser scans or photogrammetry), virtual tours, and academic publications. Like the status system, this is a descriptive tier, not a numeric score.

Extensive

Well documented across most or all digital preservation categories.

Moderate

Documented in several categories, with some notable gaps.

Limited

Only a small amount of public digital documentation could be found.

Minimal

Little to no public digital documentation could be found.

This measures what's publicly findable, not how important or well-cared-for a site is — a site with Limited documentation may still be carefully maintained, just without much of that work published online.

What this methodology doesn't claim

Countries and the casebook

Countries and cases follow the same evidence rules as sites, but they have no statuses, colors, scores or rankings. They record documented facts only.

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