| Data category |
Primary sources (facts served) |
| Visa requirements & pathways7,000+ pathways |
Government immigration portals
Embassy / consular sites
National gazettes
|
| Quality of life & safety3,912 facts |
World Bank — 1,130
EF English Proficiency Index — 402
Our World in Data — 386
Numbeo — 355 (crowdsourced)
Cable.co.uk Broadband Speed League — 229
Transparency International CPI — 199
IQAir Air Quality Index — 87
Global Peace Index (IEP) — 78
Ookla Speedtest Global Index — 5
No source recorded — 1,041 (27% of this row)
|
| Tax regimes3,163 facts |
PwC Worldwide Tax Summaries — 1,984
National tax authorities — 249
World Bank — 161
EY Worldwide Tax & Immigration Guide — 138
Block-level fallback, verification pending — 207
Wikipedia tax-rate table, verification pending — 17
No source recorded — 407
|
| Cost of living & rent2,486 facts |
Numbeo — 2,033 (crowdsourced · 82% of this row)
World Bank — 447
Market cost-of-living index — 2
No source recorded — 4
|
| Economics & labour market2,599 facts |
World Bank — 1,921
ILOSTAT (ILO) — 322
National statistics offices — 24
Our own audit / derived figures — 25
Pre-2026 import, verification pending — 76
No source recorded — 231
|
| Education515 facts |
World Bank — 203
OpenAlex — 200
No source recorded — 112
|
| Banking access895 facts |
WTE internal calculation — 395
N26 supported countries — 250
Wise supported countries — 250
|
| Practical logistics1,106 facts |
World Bank — 426
Numbeo — 89 (crowdsourced)
No source recorded — 591 (53% of this row)
|
| Immigration context1,597 facts |
EY Worldwide Tax & Immigration Guide — 192
No source recorded — 1,405 (88% of this row)
|
16,273 country-level facts across our 250-country reference table, served over these 8 domains — counted on 3 September 2026 (this count changes as fields are added, retired, or fail freshness checks). By publisher type: 28.3% intergovernmental (World Bank, ILOSTAT) · 23.3% no source recorded · 15.2% Numbeo's crowdsourced panel · 14.2% professional tax-advisory firms (PwC, EY) · 7.5% private providers (N26, Wise, EF, Cable.co.uk, IQAir, Ookla) · 3.6% open academic datasets (Our World in Data, OpenAlex) · 2.6% our own calculations · 1.8% carried over with verification still pending · 1.7% NGO indices (Transparency International, Institute for Economics & Peace) · 1.7% direct government sources. This layer is separate from the visa programmes above, and is held to a lower standard of proof.
What we are not going to pretend
3,791 of those 16,273 country facts (23%) carry no source attribution in our database, and a further 300 (1.8%) carry only a placeholder we have not yet verified. The unsourced ones are concentrated in immigration context (1,405 — derived profile attributes such as entry difficulty, pathway availability and residence timelines), quality of life (1,041 — climate zone, healthcare-system type and expat sentiment scores) and practical logistics (591 — relocation cost estimates and whether foreigners can open an account). They are still shown, because we judge a named-but-unsourced figure more useful than a blank — but they are not evidence, we are not going to dress them up as evidence, and they are the top of our repair queue. No unsourced fact is ever allowed to set an eligibility verdict: that runs entirely on Layer 1.
This share went up, not down, since we last published it (19% on 13 July 2026). Two things moved: education was largely repaired — 1,379 unsourced facts there are now 112 — while the immigration-context and quality-of-life domains grew with derived attributes that we have not yet attributed one by one. We would rather show you the number moving the wrong way than quietly restate the old one.