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Methodology & data sources

Updated 2026-08-27

Where the data comes from

Visa requirements (visa-free / visa on arrival / eTA / e-visa / visa required, with stay days) derive from the open Passport Index dataset — a 199×199 matrix of entry rules, refreshed monthly with a diff review before publishing.

Visa unlock rules (32 rules) are our own research: each rule is hand-verified against an official government source (immigration ministries, official e-visa portals, consular guidance) and carries that source plus a “last verified” date on its page.

Country reference facts (currency, languages, capitals) come from the open mledoze/countries dataset (ODbL). Flight prices are cached averages from the Aviasales Data API, refreshed weekly; we show them as indicative, never as guaranteed fares.

Scoring

A passport’s “open destinations” score counts destinations reachable without arranging a visa in advance: visa-free + visa on arrival + eTA, out of 198. e-Visa destinations are counted separately, since they require an online application before travel. This matches the approach of major travel-freedom indices.

Freshness & confidence

Every page shows its “Updated” date. The visa matrix is a snapshot: entry rules change, so always confirm with the official source linked on the page (or your airline) before booking. Unlock rules carry explicit conditions (validity, multiple-entry, “used at least once”) — the fine print that actually matters.

Passport cover artwork & licensing

The passport covers across this site are original vector reconstructions drawn by us, not photographs of real documents. Each one is built from public-domain and Creative Commons material — state emblems, coats of arms and, where a free one exists, an existing cover illustration.

Our covers are released under CC BY-SA 4.0: reuse them, including commercially, provided you credit VisaUnlocks and license derivatives under the same terms. State emblems appear in a referential, descriptive context and remain the property of the states concerned. None of these images is an official document, a facsimile of one, or a template for producing one — they show cover artwork only, at illustrative fidelity, with no data page and no security features.

Per-country attribution for every source we built on:

Sources for all 199 covers

Corrections

Spotted an error? Email hello@visaunlocks.com — corrections ship within days and the page’s “Updated” date reflects it.