Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
guestcentric.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 03:38:19 UTC · ↺ Refresh
MX Hostnames
- alt3.aspmx.l.google.com
- aspmx.l.google.com
- alt4.aspmx.l.google.com
- alt1.aspmx.l.google.com
- alt2.aspmx.l.google.com
MX Priorities
- alt3.aspmx.l.google.com: 10
- alt4.aspmx.l.google.com: 10
- alt1.aspmx.l.google.com: 5
- alt2.aspmx.l.google.com: 5
- aspmx.l.google.com: 1
A / AAAA Records
- 172.67.131.199
- 104.21.11.21
Mail Server IPs
- 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
- 2a00:1450:4009:c0f::1b ↩ yulhrs-in-f27.1e100.net
- 173.194.76.27 ↩ ws-in-f27.1e100.net
- 2a00:1450:400c:c00::1a ↩ ws-in-f26.1e100.net
- 108.177.123.26 ↩ lcscld-in-f26.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
- 172.253.116.27 ↩ dj-in-f27.1e100.net
- 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
- 142.251.179.26 ↩ pd-in-f26.1e100.net
- 2607:f8b0:4004:c08::1b ↩ bi-in-f27.1e100.net
SOA Record
Raw SOA
duke.ns.cloudflare.com dns.cloudflare.com 2399849939 10000 2400 604800 1800
Primary NS (mname)
duke.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399849939
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
duke.ns.cloudflare.com
sue.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:54.244.13.18 include:_spf.siteminder.com include:servers.mcsv.net include:_spf.salesforce.com include:aspmx.pardot.com include:_spf.google.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
google._domainkey
k1._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- linkedin-site-verification=c983e1e8-ef22-480f-a329-722c5e3875a9
- pardot703983=78f1316dea718857b81129ca84601eff5880615af6e02b9bdd7357fcd3dea2c5
- SPFv=spf1 ip4:54.244.13.18 include:_spf.siteminder.com include:servers.mcsv.net include:_spf.salesforce.com include:aspmx.pardot.com include:_spf.google.com ~all
- MS=30FC4A8CDF74E10A81C988E3BADCE2211B038A64
- MS=ms89386910
- apple-domain-verification=cUIL9oAMA9MaI1Ea
- google-site-verification=dGgKhjZwuBMsDSr1RyHPdTIys91H1Wos5SU4UQxH1A4
Full email verification for guestcentric.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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