| Date | IP Address |
| 2020-12-19 | 15.206.113.96 (ClassC) |
| 2022-01-20 | 52.66.166.196 (ClassC) |
| 2023-03-30 | 65.1.17.241 (ClassC) |
| 2025-08-27 | 13.127.72.76 (ClassC) |
| 2026-01-07 | 13.232.133.166 (ClassC) |
| 2026-01-27 | 3.7.189.240 (ClassC) |
| Date | Domain | IP |
| qc.taxmann.com | 2025-08-21 | 3.108.154.85 |
| practiceprod.taxmann.com | 2025-09-25 | 35.154.248.50 |
| prodapibookstore.taxmann.com | 2025-12-28 | 13.204.12.116 |
| researchapi-live.taxmann.com | 2025-12-19 | 13.233.209.255 |
| blog.taxmann.com | 2025-12-30 | 223.30.71.156 |
| api.taxmann.com | 2025-07-26 | 15.206.226.15 |
| liveresearchapi.taxmann.com | 2025-08-27 | 13.127.72.76 |
| mail.taxmann.com | 2025-05-08 | 13.235.159.128 |
| r.sentmail.taxmann.com | 2025-05-07 | 1.179.120.3 |
| cdn.taxmann.com | 2025-12-11 | 18.161.6.53 |
| idt.taxmann.com | 2022-01-21 | 13.127.61.111 |
| support.taxmann.com | 2025-08-27 | 35.154.0.244 |
| www.taxmann.com | 2023-11-01 | 65.1.81.67 |