Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
stairbox.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 16:32:24 UTC · ↺ Refresh
MX Hostnames
- aspmx3.googlemail.com
- aspmx2.googlemail.com
- aspmx.l.google.com
- alt1.aspmx.l.google.com
- alt2.aspmx.l.google.com
MX Priorities
- aspmx3.googlemail.com: 50
- aspmx.l.google.com: 10
- alt1.aspmx.l.google.com: 20
- alt2.aspmx.l.google.com: 30
- aspmx2.googlemail.com: 40
A / AAAA Records
- 172.67.70.152 (no PTR)
- 104.26.4.242 (no PTR)
- 104.26.5.242
- 2606:4700:20::ac43:4698
- 2606:4700:20::681a:5f2
- 2606:4700:20::681a:4f2
Mail Server IPs
- 172.253.116.27 ↩ dj-in-f27.1e100.net
- 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
- 142.251.111.27 ↩ bk-in-f27.1e100.net
- 2607:f8b0:4004:c21::1b ↩ pe-in-f27.1e100.net
- 108.177.123.26 ↩ lcscld-in-f26.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
- 64.233.178.27 ↩ lcyulk-in-f27.1e100.net
- 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
SOA Record
Raw SOA
cash.ns.cloudflare.com dns.cloudflare.com 2399572587 10000 2400 604800 1800
Primary NS (mname)
cash.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399572587
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
cash.ns.cloudflare.com
gail.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.google.com include:_spf.psm.knowbe4.com include:servers.mcsv.net include:mailgun.org -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
google._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
6 records- atlassian-domain-verification=coJta8UCJa4SnyZwCaUkSmn6jr56lbFfvaA9QRL5wunMnaAvorJXSxHj4VcbEW0c
- google-site-verification=Dw1zdTUk-PXz4jnaPxjtd6t69WLKxfDDy3ckaZmqWk8
- google-site-verification=l_PxrP_aPl0ygM4lhWUCf815xG2pbpxv5OkGpCJTMKo
- jetbrains-domain-verification=n68armupxsthc5j2nt3j3awd
- knowbe4-site-verification=498f0e3ad04e71223ffe58c37fe5acef
- SPFv=spf1 include:_spf.google.com include:_spf.psm.knowbe4.com include:servers.mcsv.net include:mailgun.org -all
Full email verification for stairbox.com
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