Corrections policy
Corrections Policy
We correct errors promptly and log every substantive correction. If you find an error in our data, methodology, or analysis, please report it so we can fix it.
Corrections in the open.
When something is wrong on this site, it is fixed and documented rather than silently patched. Substantive corrections are logged, and methodology changes are versioned and recorded with their date and rationale in the methodology changelog.
How to report a correction
Use the contact form with the page URL, the specific figure or claim, and your source.
We aim to acknowledge within 48 hours and publish a correction within one week for data errors.
What we correct
Data errors.
Incorrect values from upstream sources, misaligned geography mappings, or calculation bugs. We republish the corrected figure and note the change in the methodology changelog.
Methodology changes.
When we change a weight, threshold, or formula, we version the methodology and log the change with its date and rationale.
Factual or analytical errors.
Incorrect claims, broken links, or misattributed sources. We update the page and, for significant corrections, note the change at the top of the affected section.
What we do not change
Editorial guidance (career advice, employer recommendations, policy framing) represents the maintainers' synthesis of the evidence. We update it when the underlying evidence changes, but we do not retroactively rewrite guidance to match a new interpretation without noting the change.