Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
tri-cs.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 10:05:31 UTC · ↺ Refresh
MX Hostnames
- aspmx.l.google.com
- alt3.aspmx.l.google.com
- alt4.aspmx.l.google.com
- alt2.aspmx.l.google.com
- alt1.aspmx.l.google.com
MX Priorities
- alt2.aspmx.l.google.com: 5
- alt3.aspmx.l.google.com: 10
- alt4.aspmx.l.google.com: 10
- alt1.aspmx.l.google.com: 5
- aspmx.l.google.com: 1
A / AAAA Records
- 74.208.236.127
- 2607:f1c0:100f:f000::200
Mail Server IPs
- 172.253.116.26 ↩ dj-in-f26.1e100.net
- 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
- 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
- 2a00:1450:4009:c0f::1b ↩ yulhrs-in-f27.1e100.net
- 173.194.76.26 ↩ ws-in-f26.1e100.net
- 2a00:1450:400c:c00::1a ↩ ws-in-x1a.1e100.net
- 108.177.123.26 ↩ lcscld-in-f26.1e100.net
- 2800:3f0:4003:c0f::1b (no PTR)
- 142.251.167.27 ↩ ww-in-f27.1e100.net
- 2607:f8b0:4004:c25::1a ↩ yuiadtq-in-f26.1e100.net
SOA Record
Raw SOA
ns1025.ui-dns.biz hostmaster.1and1.com 2016061619 28800 7200 604800 300
Primary NS (mname)
ns1025.ui-dns.biz
Admin Email (rname)
hostmaster@1and1.com
Serial
2016061619
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1025.ui-dns.org
ns1025.ui-dns.biz
ns1025.ui-dns.de
ns1025.ui-dns.com
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.google.com ip4:162.241.39.205 -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- qsrku5onsa65munb8rslj8fbt1
- 0ed1fe018a8697dbd931e747f4bbe5e4c08110fcdf
- SPFv=spf1 include:_spf.google.com ip4:162.241.39.205 -all
Full email verification for tri-cs.com
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