Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ytt.edu.hk
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-14 02:23:24 UTC · ↺ Refresh
MX Hostnames
- mx01.greenradar.com
- mx02.greenradar.com
MX Priorities
- mx01.greenradar.com: 10
- mx02.greenradar.com: 20
A / AAAA Records
- 123.176.98.132 ↩ 123.176.98.132.layerdns.cloud
Mail Server IPs
- 203.85.49.143 ↩ hk02extb.greenradar.com
- 203.85.49.142 ↩ hk02extb.greenradar.com
- 152.101.60.164 ↩ sg01extb.greenradar.com
SOA Record
Raw SOA
bbdns1.on-nets.com dns.on-nets.com 2024111500 10800 3600 604800 900
Primary NS (mname)
bbdns1.on-nets.com
Admin Email (rname)
dns@on-nets.com
Serial
2024111500
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
900s
Nameservers (NS)
bbdns1.on-nets.com
bbdns2.on-nets.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.google.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
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
4 records- apple-domain-verification=zZ3TC9Z5XP4k13xO
- SPFv=spf1 include:_spf.google.com ~all
- google-site-verification=2yk3HYXzQpRs1Hq0GegsVsVcdxr1myekzouoiO53CNE
- MS=BDA923D3A6BC50EB03EA6E69463B50E3201A1493
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