computerworld.cz
SPF only
MasterDC s.r.o Google Workspace
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 | ns1.markmonitor.com · ns2.markmonitor.com · ns3.markmonitor.com · ns4.markmonitor.com · ns5.markmonitor.com · ns6.markmonitor.com · ns7.markmonitor.com |
| A | 91.213.160.132 |
| AAAA | 2001:67c:68::95 |
| MX | 1 aspmx.l.google.com |
| MX | 5 alt1.aspmx.l.google.com |
| MX | 5 alt2.aspmx.l.google.com |
| MX | 10 alt3.aspmx.l.google.com |
| MX | 10 alt4.aspmx.l.google.com |
| TXT | v=spf1 include:_spf.iinfo.cz ~all |
| TXT | google-site-verification=yhJaBIk5etFp_mMpqRKMIlZts2OD3GsoQPqk5is7pxE |
| SOA | ns1.markmonitor.com hostmaster.markmonitor.com serial 2023113005 |
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
- 91.213.160.132
- Network
- AS24971 · MASTER-AS - MasterDC s.r.o., CZ
- Provider
- MasterDC s.r.o
- Country
- CZ (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
- Google Workspace
- SPF
- present all: softfail
- DMARC
- missing
- DKIM
- not found common selectors only
Age
- First capture
- looking up…
- Years archived
- —
- Registry created
- —
- In dot.bi since
- 2026-10-13 · Majestic Million
Name analysis
Same name, other TLDs
Checking the same name on other TLDs…