Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
celestica.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 16:03:45 UTC · ↺ Refresh
MX Hostnames
- alt4.aspmx.l.google.com
- alt2.aspmx.l.google.com
- aspmx.l.google.com
- alt3.aspmx.l.google.com
- alt1.aspmx.l.google.com
MX Priorities
- alt4.aspmx.l.google.com: 30
- aspmx.l.google.com: 10
- alt1.aspmx.l.google.com: 20
- alt2.aspmx.l.google.com: 20
- alt3.aspmx.l.google.com: 30
A / AAAA Records
- 20.237.57.148
Mail Server IPs
- 173.194.76.27 ↩ ws-in-f27.1e100.net
- 2a00:1450:400c:c00::1a ↩ ws-in-f26.1e100.net
- 172.253.122.27 ↩ bh-in-f27.1e100.net
- 2607:f8b0:4004:c19::1a ↩ bk-in-f26.1e100.net
- 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
- 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
- 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
SOA Record
Raw SOA
art.ns.cloudflare.com dns.cloudflare.com 2399646766 10000 2400 604800 1800
Primary NS (mname)
art.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399646766
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
harleigh.ns.cloudflare.com
art.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.boardbooks.com include:_spf.google.com include:_spf.kinaxis.com ip4:149.72.199.202 include:_spf-dc2.successfactors.com include:spf1.celestica.com include:mercurygate.net -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; adkim=s; aspf=s;
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 13 found
google._domainkey
selector1._domainkey
selector2._domainkey
default._domainkey
mail._domainkey
dkim._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
sendgrid._domainkey
mxvault._domainkey
amazonses._domainkey
⚠ Public key (p=) missing in DKIM record for selector google.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
17 records- google-site-verification: googlea2e4573cfdc21c7f.html
- _ydkdmqfei7e1wrvnattz3th8ooesfn7
- MS=ms29266192
- successfactors-site-verification=NDk5YjVmMGI3MTM3YmVmMTUxMDAyZTUyNWFlZDFmNWNhYmFmZDMwMTYzZjJlNWQzMDA5Nzg0NmE0MjlkOTYzMg==
- atlassian-domain-verification=AVO28VoCU8cc8fiBJUAanW2bGeZ1odqW1Hz3tKj8qRxlXHXXaJPsCvehdHTplWpk
- docusign=601b1887-29dd-4123-8596-6548d9ae567a
- SPFv=spf1 include:spf.boardbooks.com include:_spf.google.com include:_spf.kinaxis.com ip4:149.72.199.202 include:_spf-dc2.successfactors.com include:spf1.celestica.com include:mercurygate.net -all
- docusign=041f2114-662e-4404-94f6-0ca46d1a0580
- 2408684
- dropbox-domain-verification=rta6xujhqr2w
- google-site-verification=83Hg2p3YxH3_JyPDgOdnYxz4BwHCIrtIkv3-y_I4-XQ
- onetrust-domain-verification=ee91077d0c844c28860d6212bc869b98
- apple-domain-verification=LeNmWfgs8iR6CNKu
- miro-verification=fb38b8553bc43a911bd0dc0f6296c0717de01a3f
- ZOOM_verify_459A2MU4cj4X8mWaycktll
- traction-guest=d7c19832-87eb-475f-8947-e00dcc620059
- webexdomainverification.LXR1=499ee8f9-381c-4fbf-8696-b675b1eb32d4
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