Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
shift4.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-30 09:09:34 UTC · ↺ Refresh
MX Hostnames
- aspmx.l.google.com
- alt2.aspmx.l.google.com
- alt3.aspmx.l.google.com
- alt4.aspmx.l.google.com
- alt1.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
- 76.76.21.21
Mail Server IPs
- 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
- 142.250.31.26 ↩ bj-in-f26.1e100.net
- 2607:f8b0:4004:c17::1b ↩ bl-in-f27.1e100.net
- 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
- 2a00:1450:4009:c0f::1b ↩ yulhrs-in-f27.1e100.net
SOA Record
Raw SOA
ns-1952.awsdns-52.co.uk awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1952.awsdns-52.co.uk
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1952.awsdns-52.co.uk
ns-898.awsdns-48.net
ns-1485.awsdns-57.org
ns-154.awsdns-19.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf1.shift4.com include:spf2.shift4.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 5 found
google._domainkey
mail._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
33 records- cloudflare_dashboard_sso=9ab463ae4e1cc696f1351fa8869c9d65
- mandrill_verify.ADtPuAWANInII3-uCm0UpA
- _gitlab-pages-verification-code.shift4.com TXT gitlab-pages-verification-code=b9729764325320957536a7db58a03eca
- mbqv4137vw6c7dslmgjq4gnmbh86gkky
- Yy/Vz1pJSseHvZiSx33SCxabXcLfO0oec79bWDDuGgI=
- MS=03AAEF2C8DB8688E4F06D54E93CADE57027C2D68
- sending_domain931903=06653c884a6f8ea82903ac2a96b1df257ca0234307b0385b6c2e06f0ca6d1613
- monday-com-verification=Z6jTb83Jr9F0QZsE04ryM-bDYJrKEJnGJxxPT8Ka5d0
- SPFv=spf1 include:spf1.shift4.com include:spf2.shift4.com -all
- brevo-code:45d477d2e09362d10b8689d83cdd7c11
- anthropic-domain-verification-mn37y8=OxFIMZFc1lYoRWQpxmsiWhFc5
- ZOOM_verify_fkokTQ8SsYFmaM5DXFEHFY
- MS=ms96759432
- box-domain-verification=2dcebc47eda7ec42a8659c0c4823a9e79cb31c21da4a2ca133404ae878935738
- Docusign-b20de7eb-20cd-4515-8cd2-3c3cec65f5e8
- google-site-verification=YalX1Tlu3_kap6mrte-nmso5MgkPmRvVrDY5Bal1mCI
- openai-domain-verification=dv-EJZtNSxoH0nywHg1Q45LL4mk
- _mxpujcuwh6o7lmtgewqsd1ptzgehol8
- logmein-verification-code=EiIpCrSfLbEdKFbE1P0nUzpmQ
- docusign=1d2a091f-9f52-4eb8-b3ab-850ce0d670ef
- hpmaumtflaosj00v3qsp0rvguv
- apple-domain-verification=L3mVGi0MuAFN5HQO
- atlassian-domain-verification=61iil5RyagtRyQdDnp/qWI2Z2CiyuEMSjB0GLB2YUN11fEyizZveWW9Eaco7lvwx
- zapier-domain-verification-challenge=f88314cd-ae75-4820-996d-cb8122b64a83
- canva-site-verification=MuPJQ8QbMaMlLGbQwmbOEQ
- docusign=b37aa7ea-2018-4987-b7bf-fcf0e73a82df
- sa476fn5nhduta9ggfl76cbhqh
- airtable-verification=4e3f2cffb8ad236e68a52a5e880b6eb4
- OSSRH-86044
- atlassian-sending-domain-verification=ccbd3910-ddea-49e1-8537-0fd677392e84
- 8556c82b-b6ee-4838-8f56-269fb71bf012-shift4.com
- google-site-verification=0C7VDZsCnbyVtKiVO_1OcrXWDNHavxVtaTns-W6O2SU
- ikhofl62n5171onne12d40c18m
Full email verification for shift4.com
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