Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cnsuntour.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-14 03:14:19 UTC · ↺ Refresh
MX Hostnames
- mxw.263.net
- mx.263.net
MX Priorities
- mx.263.net: 10
- mxw.263.net: 5
A / AAAA Records
- 99.84.234.38 ↩ server-99-84-234-38.jfk50.r.cloudfront.net
- 99.84.234.19 ↩ server-99-84-234-19.jfk50.r.cloudfront.net
- 99.84.234.5 ↩ server-99-84-234-5.jfk50.r.cloudfront.net
- 99.84.234.129 ↩ server-99-84-234-129.jfk50.r.cloudfront.net
- 2600:9000:20a6:600:9:fb4d:2000:93a1 (no PTR)
- 2600:9000:20a6:4200:9:fb4d:2000:93a1 (no PTR)
- 2600:9000:20a6:6200:9:fb4d:2000:93a1
- 2600:9000:20a6:4400:9:fb4d:2000:93a1
- 2600:9000:20a6:8200:9:fb4d:2000:93a1
- 2600:9000:20a6:7600:9:fb4d:2000:93a1
- 2600:9000:20a6:d200:9:fb4d:2000:93a1
- 2600:9000:20a6:fa00:9:fb4d:2000:93a1
CNAME → d4kgtisk4kjnk.cloudfront.net
Mail Server IPs
- 164.92.126.242 (no PTR)
- 38.83.106.84 ↩ us-mx1.263.net
- 38.83.106.85 ↩ us-mx2.263.net
- 143.110.227.31 (no PTR)
SOA Record
Raw SOA
ns-640.awsdns-16.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-640.awsdns-16.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-92.awsdns-11.com
ns-1429.awsdns-50.org
ns-1606.awsdns-08.co.uk
ns-640.awsdns-16.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.263.net -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict 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
1 record- SPFv=spf1 include:spf.263.net -all
Full email verification for cnsuntour.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits