Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
nationalmattress.ca
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-30 04:07:38 UTC · ↺ Refresh
MX Hostnames
- alt2.aspmx.l.google.com
- aspmx.l.google.com
- alt1.aspmx.l.google.com
- alt4.aspmx.l.google.com
- alt3.aspmx.l.google.com
MX Priorities
- alt1.aspmx.l.google.com: 5
- alt2.aspmx.l.google.com: 5
- aspmx.l.google.com: 1
- alt3.aspmx.l.google.com: 10
- alt4.aspmx.l.google.com: 10
A / AAAA Records
- 172.66.40.153
- 172.66.43.103
- 2606:4700:3108::ac42:2b67
- 2606:4700:3108::ac42:2899
Mail Server IPs
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
- 172.253.116.27 ↩ dj-in-f27.1e100.net
- 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
- 172.253.122.27 ↩ bh-in-f27.1e100.net
- 2607:f8b0:4004:c07::1a ↩ bc-in-f26.1e100.net
- 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
- 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
- 173.194.76.27 ↩ ws-in-f27.1e100.net
- 2a00:1450:400c:c00::1a ↩ ws-in-x1a.1e100.net
SOA Record
Raw SOA
jim.ns.cloudflare.com dns.cloudflare.com 2400045239 10000 2400 604800 1800
Primary NS (mname)
jim.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400045239
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
jim.ns.cloudflare.com
lara.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:em3109.nationalmattress.ca
📊 DNS lookups: 1/10
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected],mailto:[email protected]; sp=none
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
↳ Subdomain policy: none
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
10 records- firebase=national-mattres-1539202790826
- google-site-verification=6OeEgH9S0DohoB8tKVJiuMRgHNEoyeDg8Xvtk7--3s4
- google-site-verification=JPGd1K5hiau5MnRvWsdoYoQ1CN_WhUKprwO2jqrdAXo
- google-site-verification=X6uw_2SsSDiNqEWGsQNXd6dsccMw6_wq0cLlqXvripI
- klaviyo-site-verification=WuqXVt
- SPFv=spf1 include:em3109.nationalmattress.ca
- SPFv=spf1 mx a ip4:219.88.246.20/32 ip4:219.88.246.23/32 ip4:219.88.246.25/32 ip4:219.88.246.26/32 include:sendgrid.net include:48483372.spf05.hubspotemail.net include:_spf.google.com include:mail.zendesk.com include:amazonses.com include:_spf.firebasemail.com include:u15306443.wl194.sendgrid.net ~all
- MS=ms20365697
- anthropic-domain-verification-54tc5f=l4qh3Oy0t9kfY1tNc3pa6snU1
- facebook-domain-verification=0ffh5pdq9xaop2m3cug2hed7hma839
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site · Customize →
See demo & docs
Deep verification
Full email verification for nationalmattress.ca
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits