| Date | IP Address |
| 2015-11-19 | 199.27.76.133 (ClassC) |
| 2015-12-02 | 23.235.39.133 (ClassC) |
| 2015-12-17 | 23.235.46.133 (ClassC) |
| 2016-06-24 | 151.101.48.133 (ClassC) |
| 2025-06-03 | 185.199.111.153 (ClassC) |
| 2026-02-10 | 185.199.109.153 (ClassC) |
| Date | Domain | IP |
| api.html-tidy.org | 2025-04-24 | 185.199.108.153 |
| binaries.html-tidy.org | 2025-06-03 | 185.199.111.153 |