Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
blockainc.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 09:33:10 UTC · ↺ Refresh
MX Hostnames
- ASPMX3.GOOGLEMAIL.com
- ALT1.ASPMX.L.GOOGLE.com
- ASPMX.L.GOOGLE.com
- ASPMX4.GOOGLEMAIL.com
- ASPMX2.GOOGLEMAIL.com
- ASPMX5.GOOGLEMAIL.com
- ALT2.ASPMX.L.GOOGLE.com
MX Priorities
- alt2.aspmx.l.google.com: 20
- aspmx2.googlemail.com: 30
- aspmx3.googlemail.com: 30
- aspmx4.googlemail.com: 30
- aspmx5.googlemail.com: 30
- aspmx.l.google.com: 10
- alt1.aspmx.l.google.com: 20
A / AAAA Records
- 141.193.213.10
- 141.193.213.11
Mail Server IPs
- 172.253.116.27 ↩ dj-in-f27.1e100.net
- 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1b (no PTR)
- 172.253.116.26 ↩ dj-in-f26.1e100.net
- 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
- 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
- 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
- 173.194.76.26 ↩ ws-in-f26.1e100.net
- 2a00:1450:400c:c00::1b ↩ ws-in-x1b.1e100.net
SOA Record
Raw SOA
byron.ns.cloudflare.com dns.cloudflare.com 2396442138 10000 2400 604800 1800
Primary NS (mname)
byron.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2396442138
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
chelsea.ns.cloudflare.com
byron.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:50.230.38.242 ip4:75.149.58.89 ip4:149.72.183.254 include:_spf.google.com include:sendgrid.net include:_spf.psm.knowbe4.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;rua=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
google._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 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
3 records- duo_sso_verification=lNoAWDvKaZVPSKDyrp8AlWVqYGLyYSXJdeqMe6i0ik0U3mSHLZfx4WHA4e5OfDVv
- SPFv=spf1 ip4:50.230.38.242 ip4:75.149.58.89 ip4:149.72.183.254 include:_spf.google.com include:sendgrid.net include:_spf.psm.knowbe4.com ~all
- bw=h0yf28giF3HEmgMtiMFE0lDWVz2eeGpnFV1AJGv3JKDr
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