The sources we use
The kinds of sources we accept, and the kinds we refuse.
Last updated September 4, 2026
Sources we use
- Manufacturer specification pages and documentation.
- Technical documentation from the eSIM providers we integrate with.
- Public announcements from local operators in the destination country.
- Government websites for visa, customs and travel rules.
- GSMA standards for the technical definition of eSIM.
Sources we do not use
- Unverifiable forum posts and comments.
- Competitor marketing copy with nothing behind it.
- Speed figures with no stated measurement method.
When we cite a source we name the publisher and the date we last checked it, so you can verify it yourself.