Editorial policy

Guides and tool pages are written and reviewed by Orlando Alves, who runs the site. Each guide shows the author and the date of its last review.

Before publishing, the text is compared with the tool's code: limits, accepted formats, and calculation rules must match what the site actually does.

Document rules and technical standards (for example the RFCs for UUID and JWT, or the IBAN standard) are checked against the official source or specification. Numeric examples are tested in the tool itself.

AI assistants may help draft or edit the wording. They do not decide what gets published. Every text is read by a person and fact-checked, and we do not copy content from other sites.

The generators produce fictitious data that follows the format and check digits but does not represent real people or companies. The guides state what each tool does not verify, such as whether a registration actually exists.

If you find a mistake, write to us through the Contact page. Factual errors are fixed and the guide's review date is updated. Ads do not influence the content or the tools' results.