| Property | Value |
| Country | Germany |
| Domain | Date |
| schachbrief.de | 2025-11-13 |
| fritzhelp.com | 2025-11-10 |
| fritzload.com | 2025-10-27 |
| chessletter.com | 2025-10-12 |
| fritzserver.org | 2025-08-03 |
| newsletterimages.chessbase.com | 2024-06-01 |
| viewchess.com | 2022-10-21 |
| www.chessletter.com | 2022-10-15 |
| view.chessbase.com | 2022-09-28 |
| www.viewchess.com | 2022-09-28 |
| download.chessbase.com | 2022-08-18 |
| help.chessbase.com | 2022-08-10 |
| b3er.org | 2019-12-12 |
| blmrt.org | 2016-02-11 |