robbym.com
SPF only
Comcast Cable Communications improvmx.com
Registration
No RDAP record was returned for this domain. Either the registry publishes no RDAP service for .com, the domain is not registered, or the registry did not answer in time. dot.bi does not guess: no record means no registration data, not “available”.
DNS
| Type | Value |
|---|---|
| NS | nelly.ns.cloudflare.com · norman.ns.cloudflare.com |
| A | 73.223.194.21 |
| MX | 10 mx1.improvmx.com |
| MX | 20 mx2.improvmx.com |
| TXT | protonmail-verification=93554ef6dbb531f20ef5a1b37d496e26c801a3a1 |
| TXT | v=spf1 include:spf.improvmx.com ~all |
| SOA | nelly.ns.cloudflare.com dns.cloudflare.com serial 2417411496 |
Certificates
- First certificate seen
- 2026-10-13 21:30 UTC since dot.bi started watching
- Last certificate seen
- 2026-10-13 21:30 UTC
- Certificates observed
- 4
- Issuers
- Let's Encrypt
Hosting
- IP
- 73.223.194.21
- Network
- AS7922 · COMCAST-7922 - Comcast Cable Communications, LLC, US
- Provider
- Comcast Cable Communications
- Country
- US (network registration, not server location)
- CDN
- none detected
- IPv6
- no
Web
No web data for this domain yet.
SPF only SPF is published but there is no DMARC policy.
- Provider
- improvmx.com
- SPF
- present all: softfail
- DMARC
- missing
- DKIM
- not found common selectors only
Age
- First capture
- —
- Years archived
- —
- Registry created
- —
- In dot.bi since
- 2026-10-13 · Certificate Transparency
Name analysis
Same name, other TLDs
No check recorded yet.
History observed by dot.bi
First observed by dot.bi · source: ct