Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
simdex.org
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-02 07:08:13 UTC · ↺ Refresh
MX Hostnames
- aspmx.l.google.com
- alt3.aspmx.l.google.com
- alt1.aspmx.l.google.com
- alt4.aspmx.l.google.com
- alt2.aspmx.l.google.com
MX Priorities
- alt2.aspmx.l.google.com: 5
- aspmx.l.google.com: 1
- alt3.aspmx.l.google.com: 10
- alt4.aspmx.l.google.com: 10
- alt1.aspmx.l.google.com: 5
A / AAAA Records
- 104.21.5.109
- 172.67.133.87
- 2606:4700:3032::ac43:8557
- 2606:4700:3037::6815:56d
Mail Server IPs
- 172.253.116.27 ↩ dj-in-f27.1e100.net
- 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
- 142.251.163.26 ↩ wv-in-f26.1e100.net
- 2607:f8b0:4004:c21::1b ↩ pe-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
- 108.177.123.26 ↩ lcscld-in-f26.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
SOA Record
Raw SOA
alex.ns.cloudflare.com dns.cloudflare.com 2399838828 10000 2400 604800 1800
Primary NS (mname)
alex.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399838828
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
sara.ns.cloudflare.com
alex.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:66.42.113.4 include:_spf.google.com include:mailgun.org include:sendgrid.net include:22826983.spf07.hubspotemail.net -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; pct=100; rua=mailto:[email protected],mailto:[email protected]; sp=none; aspf=r;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 5 found
google._domainkey
default._domainkey
k1._domainkey
s1._domainkey
s2._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
7 records- stripe-verification=59829edde9743d9d38949d2782db11e550464a3bbb86b0cacddc3413a3e525b0
- SPFv=spf1 ip4:66.42.113.4 include:_spf.google.com include:mailgun.org include:sendgrid.net include:22826983.spf07.hubspotemail.net -all
- apple-domain-verification=3QnnqpSOAkrsgYYAZbwXMEypcM4N1y8ywM7pfUh4o7Y
- atlassian-domain-verification=p5N9GxYNxGRWtuTXYImANxyoLrSDiG343T3qkUkYwxS3b3cLuaFoV8LjxhasaeJe
- facebook-domain-verification=qkaflwy1adj01eycb0sf79ywqij58a
- google-site-verification=L77R75rs8K69EPVouB37Zd32aHcfh_klVSue0GPVu8E
- hubspot-developer-verification=ZGNkNzdmZDktM2Y1MC00NzdjLTliNDYtM2VmODFhNmRkM2Q4
Full email verification for simdex.org
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