Rank #3,533Updated November 10, 2026
rdcu.be
Its email security grade is F. Its SSL certificate is issued by Amazon and is valid for 110 more days.
- Domain age
- —
- Technologies
- —
- Email security
- F
- SSL days left
- 110
DNS records
| Type | Value | TTL |
|---|---|---|
| A | 54.166.68.64 | 60 |
| A | 52.44.161.141 | 60 |
| MX | aspmx.l.google.com 10 | 300 |
| MX | alt1.aspmx.l.google.com 20 | 300 |
| MX | alt2.aspmx.l.google.com 30 | 300 |
| MX | aspmx2.googlemail.com 40 | 300 |
| MX | aspmx3.googlemail.com 50 | 300 |
| NS | gina.ns.cloudflare.com | 86400 |
| NS | woz.ns.cloudflare.com | 86400 |
SSL certificate
| Valid | Valid |
|---|---|
| Issuer | US, Amazon RSA 2048 M04, Amazon |
| Expires | February 28, 2027 |
| Days remaining | 110 |
| Protocol | TLSv1.3 |
| Names | rdcu.be, *.rdcu.be |
Email security
FScore 5/100 across SPF, DMARC, DKIM, MTA-STS and BIMI.
- badNo SPF record. Anyone can send email that claims to come from rdcu.be.
- badNo DMARC record. Receivers have no instructions for mail that fails SPF and DKIM, and you get no reports about who sends as your domain.
- warnNo DKIM key found at common selectors (google, selector1, selector2, default, k1, k2, s1, s2, ...). DKIM may still use a custom selector we cannot guess.
- warnNo MTA-STS: mail sent to you can be downgraded to an unencrypted connection.
- warnNo TLS-RPT record, so you won't hear about failed encrypted deliveries.
- warnNo BIMI record (optional: shows your logo next to your emails in supporting inboxes).
- good5 MX record(s) found. Mail is handled by Google Workspace.
Homepage metadata
| Language | en |
|---|---|
| Indexable | Yes |
| Word count | 0 |
About rdcu.be
Does rdcu.be protect its email with SPF and DMARC?
rdcu.be scores 5/100 (grade F) for email security. No SPF record. Anyone can send email that claims to come from rdcu.be. No DMARC record. Receivers have no instructions for mail that fails SPF and DKIM, and you get no reports about who sends as your domain.
What are the name servers of rdcu.be?
rdcu.be uses gina.ns.cloudflare.com, woz.ns.cloudflare.com.