studycorner.ru
Well protected
Cloudflare teachroom.ru
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 | evan.ns.cloudflare.com · mimi.ns.cloudflare.com |
| A | 104.21.81.136 |
| A | 172.67.189.156 |
| AAAA | 2606:4700:3030::ac43:bd9c |
| AAAA | 2606:4700:3033::6815:5188 |
| MX | 10 mail.teachroom.ru |
| TXT | v=spf1 mx -all |
| SOA | evan.ns.cloudflare.com dns.cloudflare.com serial 2417418054 |
Certificates
- First certificate seen
- 2026-10-13 22:42 UTC since dot.bi started watching
- Last certificate seen
- 2026-10-13 22:42 UTC
- Certificates observed
- 8
- Issuers
- Google Trust Services
Hosting
- IP
- 104.21.81.136
- 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…
Well protected Mail is authenticated and spoofed mail is rejected.
- Provider
- teachroom.ru
- SPF
- present all: fail
- DMARC
- p=reject no reports
- DKIM
- not found common selectors only
Age
- First capture
- looking up…
- Years archived
- —
- Registry created
- —
- In dot.bi since
- 2026-10-13 · Certificate Transparency
Name analysis
Same name, other TLDs
Checking the same name on other TLDs…
History observed by dot.bi
First observed by dot.bi · source: ct