dev.blue
SPF only
Cloudflare feishu.cn
DNS, hosting, email and name analysis are live. Registration data, the home-page probe, the archive lookup and the other-TLD check are being fetched in the background; this page refreshes itself in a few seconds.
Registration
Fetching the registry record…
DNS
| Type | Value |
|---|---|
| NS | eugene.ns.cloudflare.com · mariah.ns.cloudflare.com |
| A | 104.21.42.190 |
| A | 172.67.208.96 |
| AAAA | 2606:4700:3035::ac43:d060 |
| AAAA | 2606:4700:3036::6815:2abe |
| MX | 1 mx1.feishu.cn |
| MX | 5 mx2.feishu.cn |
| MX | 10 mx3.feishu.cn |
| TXT | v=spf1 +include:_netblocks.m.feishu.cn -all |
| TXT | verification-code-site-App_feishu=XZOpeG5gLR7rglwcQKIC |
| SOA | eugene.ns.cloudflare.com dns.cloudflare.com serial 2417029911 |
Certificates
No certificate for this domain has passed through the logs dot.bi follows since it started watching. Older certificates are not back-filled.
Hosting
- IP
- 104.21.42.190
- Network
- AS13335 · CLOUDFLARENET - Cloudflare, Inc., US
- Provider
- Cloudflare
- Country
- US (network registration, not server location)
- CDN
- none detected
- IPv6
- yes
Web
Probing the home page…
SPF only SPF is published but there is no DMARC policy.
- Provider
- feishu.cn
- SPF
- present all: fail
- DMARC
- missing
- DKIM
- not found common selectors only
Age
- First capture
- looking up…
- Years archived
- —
- Registry created
- —
- In dot.bi since
- 2026-10-13 · Zone file
Name analysis
Same name, other TLDs
Checking the same name on other TLDs…