Error:
The total number of subdomains is capped at 50.
| Hostname | URL | Grade | Tested on |
|---|---|---|---|
| hainanairlines.com | https://www.hainanairlines.com/CN/GB/Welcome | A | November 5th, 2026 15:36 |
| www.hainanairlines.com | https://www.hainanairlines.com/CN/GB/Welcome | A- | November 5th, 2026 15:39 |
| redenvelope.hainanairlines.com | https://redenvelope.hainanairlines.com/ | C | November 5th, 2026 15:38 |
| www.wifi.hainanairlines.com | https://www.wifi.hainanairlines.com | N | November 5th, 2026 15:51 |
| digital.hainanairlines.com | https://digital.hainanairlines.com | N | November 5th, 2026 15:47 |
The total number of subdomains is capped at 50.
| Hostname | URL | Grade | Tested on |
|---|---|---|---|
| hainanairlines.com | https://www.hainanairlines.com/CN/GB/Welcome | A | November 5th, 2026 15:34 |
| www.hainanairlines.com | https://www.hainanairlines.com/CN/GB/Welcome | A | November 5th, 2026 15:34 |
| redenvelope.hainanairlines.com | https://redenvelope.hainanairlines.com/ | A+ | November 5th, 2026 15:39 |
| mail.hainanairlines.com | https://mail.hainanairlines.com | N | November 5th, 2026 15:49 |
| 2fwww.hainanairlines.com | https://2fwww.hainanairlines.com | N | November 5th, 2026 15:49 |
The total number of subdomains is capped at 50.
| Hostname | URL | Protocol | Grade | Tested on |
|---|---|---|---|---|
| hainanairlines.com | https://hainanairlines.com 107.154.214.69:443 | HTTPS | A+ | November 5th, 2026 15:35 |
| www.hainanairlines.com | https://www.hainanairlines.com 45.60.93.174:443 | HTTPS | A+ | November 5th, 2026 15:35 |
| redenvelope.hainanairlines.com | https://redenvelope.hainanairlines.com 151.101.1.195:443 | HTTPS | A | November 5th, 2026 15:38 |
| livechat.hainanairlines.com | https://livechat.hainanairlines.com 49.51.200.40:443 | HTTPS | A+ | November 5th, 2026 15:39 |
| globehotel.hainanairlines.com | https://globehotel.hainanairlines.com 3.162.3.11:443 | HTTPS | F | November 5th, 2026 15:37 |
| Hostname | Grade | Tested on |
|---|---|---|
| hainanairlines.com | F | November 5th, 2026 15:36 |
| Hostname | Tested on |
|---|---|
| hainanairlines.com | November 5th, 2026 15:34 |