Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
coolroof.ch
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-09-10 16:16:44 UTC · ↺ Refresh
MX Hostnames
- coolroof.ch
MX Priorities
- coolroof.ch: 10
A / AAAA Records
- 141.138.138.183 ↩ domains.blauwscherm.nl
Mail Server IPs
- 141.138.138.183 ↩ domains.blauwscherm.nl
SOA Record
Raw SOA
ns0.transip.nl hostmaster.transip.nl 2021091601 86400 1800 2419200 300
Primary NS (mname)
ns0.transip.nl
Admin Email (rname)
hostmaster@transip.nl
Serial
2021091601
Refresh
86400s
Retry
1800s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns1.transip.net
ns0.transip.nl
ns2.transip.eu
SPF Record
✗ Invalid
v=spf1 -all
📊 DNS lookups: 0/10
⚠ Strict -all with no allowed senders — no servers can send email for this domain.
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 -all
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