Domain Overview
DNS: ✓ just now
Checker: ✓ just now
docsis.ru
Disposable
✓ Yes
Unknown
⚠ Yes
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-06-01 19:21:35 UTC · ↺ Refresh
MX Hostnames
- sibmail.com
MX Priorities
- sibmail.com: 10
A / AAAA Records
- 77.106.108.225 ↩ www.sibmail.com
Mail Server IPs
No IPs resolved.
SOA Record
Raw SOA
ns8.ertelecom.ru noc.ertelecom.ru 2021082703 28800 14400 1800000 86400
Primary NS (mname)
ns8.ertelecom.ru
Admin Email (rname)
noc@ertelecom.ru
Serial
2021082703
Refresh
28800s
Retry
14400s
Expire
1800000s
Minimum TTL
86400s
Nameservers (NS)
ns6.ertelecom.ru
ns8.ertelecom.ru
SPF Record
✗ MissingNo SPF record — domain is unprotected against spoofing.
⚠ No SPF record found. Email servers cannot verify authorized senders.
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- yandex-verification:15d74bd1e3f43527
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