Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
holidu.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 23:35:06 UTC · ↺ Refresh
MX Hostnames
- aspmx3.googlemail.com
- aspmx2.googlemail.com
- alt2.aspmx.l.google.com
- alt1.aspmx.l.google.com
- aspmx.l.google.com
MX Priorities
- alt1.aspmx.l.google.com: 5
- alt2.aspmx.l.google.com: 5
- aspmx.l.google.com: 1
- aspmx2.googlemail.com: 10
- aspmx3.googlemail.com: 10
A / AAAA Records
- 18.164.124.28 ↩ server-18-164-124-28.jfk50.r.cloudfront.net
- 18.164.124.112 ↩ server-18-164-124-112.jfk50.r.cloudfront.net
- 18.164.124.114 ↩ server-18-164-124-114.jfk50.r.cloudfront.net
- 18.164.124.2 ↩ server-18-164-124-2.jfk50.r.cloudfront.net
Mail Server IPs
- 108.177.123.26 ↩ lcscld-in-f26.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
- 172.253.116.26 ↩ dj-in-f26.1e100.net
- 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
- 142.250.31.26 ↩ bj-in-f26.1e100.net
- 2607:f8b0:4004:c06::1a ↩ bg-in-f26.1e100.net
SOA Record
Raw SOA
ns-494.awsdns-61.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-494.awsdns-61.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-654.awsdns-17.net
ns-1398.awsdns-46.org
ns-1603.awsdns-08.co.uk
ns-494.awsdns-61.com
SPF Record
✓ Strict (-all)
v=spf1 include:amazonses.com include:spf.mandrillapp.com include:_spf.google.com include:mail.zendesk.com include:spf.mailjet.com include:sendgrid.net -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=reject; pct=100; fo=1; ri=3600; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 3 found
google._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 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
11 records- SPFv=spf1 include:amazonses.com include:spf.mandrillapp.com include:_spf.google.com include:mail.zendesk.com include:spf.mailjet.com include:sendgrid.net -all
- apple-domain-verification=m6UyHbK64XpHNwxi
- atlassian-domain-verification=itC4p5FT-aui33XO0pOhUJzOK3kCeywOeHsuAtRLSLsYS/pbqd6JDZAA/qv0mftB
- google-site-verification=O-U8LK8W6Zi0MORpaEYhwY8WqpyP7t24DKO65k6jV6w
- google-site-verification=XwWn5BKL5QEmcaROvrEE9QpNU7TZkJnWRm1OxcCU8vo
- google-site-verification=Zv3kA2fqkoDF0V3cilAH9_f3fap5K13mvU0rTYpMJ40
- google-site-verification=oMWy6fuQ3qXFpzNLgte5cqBs-ETT6EGivx53yFiKkRI
- google-site-verification=zoGntPOS52Iq4S63iIigQoi2fNH5aZjmoH774CyfY1c
- h1-domain-verification=sB3hukbsZxtLPeLjQcwMH48agnd75bwnG21Bxvw4S7nmR5P3
- jetbrains-domain-verification=252h0y48689x4zixg7awu39rf
- pinterest-site-verification=6e1f5a586c62432a3f036e60f17fd931
Full email verification for holidu.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits