Contact

otldr is run by the same small team behind every vertical in the network - the people who compute the ephemeris tables, check the sources and date every page. If something on any otldr site is wrong, incomplete or missing a citation, we want to hear about it.

Email [email protected] for:

• Corrections - factual errors, stale data or broken tables. These are handled with priority.
• Source requests - if a claim is not cited, tell us which page and we will add the primary source or remove the claim.
• Data and licensing - questions about reusing our computed datasets (CSV downloads, tables) in research or journalism.
• Partnerships - collaboration on a vertical or data source.

Include the URL of the page in question and, where possible, a link to the primary source you want us to consult.

What to expect

We reply within two business days. Data-correction requests are verified against the primary source first, per our methodology and editorial standards, and corrected pages show an updated verification date.