Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sleepdoctor.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 12:40:46 UTC · ↺ Refresh
MX Hostnames
- alt3.aspmx.l.google.com
- alt4.aspmx.l.google.com
- alt1.aspmx.l.google.com
- 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
- 23.227.38.65
Mail Server IPs
- 172.253.116.26 ↩ dj-in-f26.1e100.net
- 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
- 172.253.122.27 ↩ bh-in-f27.1e100.net
- 2607:f8b0:4004:c21::1b ↩ pe-in-f27.1e100.net
- 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
- 2a00:1450:4009:c0f::1b ↩ yulhrs-in-f27.1e100.net
- 173.194.76.27 ↩ ws-in-f27.1e100.net
- 2a00:1450:400c:c00::1a ↩ ws-in-x1a.1e100.net
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1b (no PTR)
SOA Record
Raw SOA
karl.ns.cloudflare.com dns.cloudflare.com 2399189726 10000 2400 604800 1800
Primary NS (mname)
karl.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399189726
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
karl.ns.cloudflare.com
vida.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.google.com include:mail.zendesk.com include:spf.zoho.com include:zcsend.net include:zeptomail.net include:_spf.paubox.com -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 3 found
google._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
17 records- SPFv=spf1 include:_spf.google.com include:mail.zendesk.com include:spf.zoho.com include:zcsend.net include:zeptomail.net include:_spf.paubox.com -all
- docusign=926109b9-ceea-490e-b9e0-0dff81a2c72f
- apple-domain-verification=tuwNb1aD4Bg2vI39
- notion-domain-verification=J5XBGQTbKB8WjaVZFzrACQjEunCHgJnDiCAonHxQeif
- ZOOM_verify_2CruM4zN186nXhiHzSXnpU
- shopify-verification-code=i7yCA31vnw7G2Uy3hhqXIHrrRZ3SGQ
- knowbe4-site-verification=d35056a97b60bd84f1763cf5d055db12
- apple-domain-verification=2Wt_lppbkSPg9fWZnG_3nYR26kqPOjOLHwod6TwHnQI
- google-site-verification=SX2T2_u6doohx3-HmH2_bopbicqfMqRtVP60i9lF_Ow
- l4ifphj.creator.cs.zohohost.com
- google-site-verification=uJ4nrr5eQfhHRN9iWCD0Ul8wNNgCziVkwTOewH-zP44
- tnhdjq6.bookings.cs.zohohost.com
- google-site-verification=122tKkFMUOq-b6E1T7kmmqdzl5D1xEvCK8moknaZLq4
- zoho-verification=zb95447141.zmverify.zoho.com
- klaviyo-site-verification=WCi6rg
- google-site-verification=vxLMOYnUdzR6In2YRxKIppa_AXWVwN1_CV-zSEQvLoc
- atlassian-domain-verification=pbRjd7YAvGLudiaAdkhVilaB4WRxa5g1UW4NhcF3ueP0M5AevfHg4DPtnKxhtXV1
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