Domain Overview
DNS: ✓ 9h ago
Checker: ✓ 9h ago
markup.ai
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-05-21 06:37:42 UTC · ↺ Refresh
MX Hostnames
- aspmx.l.google.com
- alt3.aspmx.l.google.com
- alt4.aspmx.l.google.com
- alt1.aspmx.l.google.com
- alt2.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
- 104.18.1.110
- 104.18.0.110
- 2606:4700::6812:6e
- 2606:4700::6812:16e
Mail Server IPs
- 173.194.76.26 ↩ ws-in-f26.1e100.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::1b ↩ dj-in-f27.1e100.net
- 172.253.115.26 ↩ bg-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
carol.ns.cloudflare.com dns.cloudflare.com 2404776264 10000 2400 604800 1800
Primary NS (mname)
carol.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2404776264
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
zeus.ns.cloudflare.com
carol.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.google.com include:_spf.salesforce.com include:mail.zendesk.com include:244414561.spf08.hubspotemail.net ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; adkim=r; aspf=r; rua=mailto:[email protected];
✓ 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
22 records- canva-site-verification=XzalaFOvN2yFYL6pa9sa1g
- google-site-verification=yvbjwqvOUDcEhzjDhlvYtBqPvGUzVYTq-y41l8WvVrI
- launchdarkly-domain-verification=07bc7c9e-3cc0-459b-96d0-3da472666946
- SPFv=spf1 include:_spf.google.com include:_spf.salesforce.com include:mail.zendesk.com include:244414561.spf08.hubspotemail.net ~all
- adobe-idp-site-verification=73205be1cd7688271f7d2f5d824a7a1eb03d8545c0e1545b67212a52f8f21d51
- atlassian-domain-verification=8S9Teu7vRqYE2SLlvDGziy6Qe2LXdDLll7XXecx1uOF+QYcbBEcoW4tiUtuI1N9Q
- google-site-verification=haWoaCoEzTFOwrQg4_-n9eIoiQWDTkE3s9R2GKV6SxU
- docusign=3553972a-b1cb-4ffe-bab8-360268a8861c
- apple-domain-verification=76BwQAuInADZNR6q
- MS=ms62261755
- google-gws-recovery-domain-verification=61731756
- qase-73d536138272c0c64bf47061d0319ced5e58d600
- figma-domain-verification=32ea037e17425ffb90c6640871097911ad1438d3149a07d29a38f065ede48932-1757514167
- 1password-site-verification=QUEYGT5GOVDKPMARRIZ4PRJVIE
- zapier-domain-verification-challenge=3aeb3c66-dd13-4fae-bc50-5b7107dc19de
- google-site-verification=qDKw8r3ZwN-jzt77GzsJEmszF74xQrJ3JMiI0LdN7oA
- atlassian-sending-domain-verification=76809857-ba7c-4928-998a-75dd9809345f
- 1pyczkbsax
- slack-domain-verification=A8xIWlxC58CdOmCNzSpQlcFPiJRlejn1P0FUxc5G
- sending_domain8582=0aeb305f9a0e2993a1c68882b1eb5ad31445de2b1aa984c323f33e929b5a7545
- ZOOM_verify_lhic8eV1UReyAAQmFRUomh
- knowbe4-site-verification=4eb87e4e616479cb1f292a0baec454e3
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
See demo & docs
Deep verification
Full email verification for markup.ai
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits