Domain Overview
DNS: ✓ 11h ago
Checker: ✓ 11h ago
membrane-solutions.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-07-02 10:32:32 UTC · ↺ Refresh
MX Hostnames
- mxbiz1.qq.com
- mxbiz2.qq.com
MX Priorities
- mxbiz2.qq.com: 10
- mxbiz1.qq.com: 10
A / AAAA Records
- 8.153.95.53 (no PTR)
Mail Server IPs
- 43.154.252.16 (no PTR)
- 43.154.252.202 (no PTR)
- 103.86.78.3 (no PTR)
- 103.86.78.2 (no PTR)
SOA Record
Raw SOA
dns29.hichina.com hostmaster.hichina.com 2026011209 3600 1200 86400 600
Primary NS (mname)
dns29.hichina.com
Admin Email (rname)
hostmaster@hichina.com
Serial
2026011209
Refresh
3600s
Retry
1200s
Expire
86400s
Minimum TTL
600s
Nameservers (NS)
dns29.hichina.com
dns30.hichina.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.mail.qq.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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
3 records- linkedin-site-verification=b21c4bfa-555d-4f77-a4b8-b7e3829769ee
- SPFv=spf1 include:spf.mail.qq.com ~all
- google-site-verification=FVXy21m9UXGHeCY9Exs9T_OowKLcKyOOUh3vmrx5Rh8
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