Domain Overview
DNS: ✓ 1d ago
Checker: ✓ 1d ago
corematters.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-19 22:13:13 UTC · ↺ Refresh
MX Hostnames
- alt1.aspmx.l.google.com
- alt2.aspmx.l.google.com
- aspmx.l.google.com
- alt3.aspmx.l.google.com
- alt4.aspmx.l.google.com
MX Priorities
- alt4.aspmx.l.google.com: 10
- alt1.aspmx.l.google.com: 5
- alt2.aspmx.l.google.com: 5
- aspmx.l.google.com: 1
- alt3.aspmx.l.google.com: 10
A / AAAA Records
- 172.67.70.183
- 104.26.5.51
- 104.26.4.51
- 2606:4700:20::ac43:46b7
- 2606:4700:20::681a:533
- 2606:4700:20::681a:433
Mail Server IPs
- 173.194.76.26 ↩ ws-in-f26.1e100.net
- 2a00:1450:400c:c00::1b ↩ ws-in-x1b.1e100.net
- 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::1a ↩ dj-in-f26.1e100.net
- 142.250.31.27 ↩ bj-in-f27.1e100.net
- 2607:f8b0:4004:c1f::1a ↩ pd-in-f26.1e100.net
- 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
- 2a00:1450:4009:c0f::1b ↩ yulhrs-in-f27.1e100.net
SOA Record
Raw SOA
coco.ns.cloudflare.com dns.cloudflare.com 2403863819 10000 2400 604800 1800
Primary NS (mname)
coco.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2403863819
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
coco.ns.cloudflare.com
ken.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:dc-aa8e722993._spfm.corematters.com include:9306732.spf01.hubspotemail.net a mx include:_spf.mlsend.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; aspf=r; pct=100
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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
9 records- apple-domain-verification=C2IpSYiqd0FxbuAZ
- facebook-domain-verification=rga2tidxjrz57s0ztbz8eedtx90c1t
- google-site-verification=Z3PyNhzbear6Dk59oXf5909F_wgcm1W_L61fjTi9Ygg
- mailerlite-domain-verification=95dfbb867ba15ee82c4883d41185c03d24e5796c
- openai-domain-verification=dv-X4rPoN9FNX7UxHmzu1WU7LDb
- pinterest-site-verification=00f1a127c33c11c1845108a35baa1683
- stripe-verification=d3e3b90d8ed15a8e0603c5afaf82ad65b9985bb371f50a47302539490258b961
- SPFv=spf1 include:dc-aa8e722993._spfm.corematters.com include:9306732.spf01.hubspotemail.net a mx include:_spf.mlsend.com ~all
- MS=ms69715102
Full email verification for corematters.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits