Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
joinknack.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 22:56:20 UTC · ↺ Refresh
MX Hostnames
- aspmx.l.google.com
- alt1.aspmx.l.google.com
- alt4.aspmx.l.google.com
- alt2.aspmx.l.google.com
- alt3.aspmx.l.google.com
MX Priorities
- aspmx.l.google.com: 1
- alt3.aspmx.l.google.com: 10
- alt4.aspmx.l.google.com: 10
- alt1.aspmx.l.google.com: 5
- alt2.aspmx.l.google.com: 5
A / AAAA Records
- 99.84.160.88
- 99.84.160.55
- 99.84.160.8
- 99.84.160.113
Mail Server IPs
- 172.253.63.27 ↩ bi-in-f27.1e100.net
- 2607:f8b0:4004:c1d::1a ↩ ww-in-f26.1e100.net
- 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
- 2a00:1450:4009:c0f::1b ↩ yulhrs-in-f27.1e100.net
- 173.194.76.27 ↩ ws-in-f27.1e100.net
- 2a00:1450:400c:c00::1b ↩ ws-in-x1b.1e100.net
- 108.177.123.27 ↩ lcscld-in-f27.1e100.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
SOA Record
Raw SOA
ns-1813.awsdns-34.co.uk awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1813.awsdns-34.co.uk
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-677.awsdns-20.net
ns-1133.awsdns-13.org
ns-1813.awsdns-34.co.uk
ns-48.awsdns-06.com
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx include:_spf.google.com include:541485.spf01.hubspotemail.net include:_spf.psm.knowbe4.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected]; fo=1
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 2 found
google._domainkey
mail._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
13 records- slack-domain-verification=bZ34WA4gpW6gKdCMxQ98OPKQOQSXV0ZzoR9S9M9T
- SPFv=spf1 a mx include:_spf.google.com include:541485.spf01.hubspotemail.net include:_spf.psm.knowbe4.com ~all
- T_mKb9UdYT3enbdlmsolSvP1II6T
- ZOOM_verify_BqCqvXecBS4SD3czpiZyCp
- amazon-business-verification=0a2577afb2be0aa6bc3c9fc14a875e96f2882552fa115da3cc31fd18b9565741
- anthropic-domain-verification-3wqkqj=tyql63qVDznY5llE90tKbZGNu
- apple-domain-verification=GZt_nC3lloO2a9n1vuKCmVP1Y8La4Vb6BfAbEjNX-rM
- apple-domain-verification=jAhPGSyUb100sh8f
- brevo-code:dd4b297d5ad0e8b0c65d4806f0906a1c
- bw=xQPdpPX1df+p0vQB2mOZX8W065o1c/c8D/Fq/R2Xs8iJ
- facebook-domain-verification=d6nojcfkdjxlx334w406qtrunw9ial
- google-site-verification=dz4-6s5GzULqCCJTiHsF_vPJntAAPHRxB0UUNQFr60E
- linkedin-site-verification=637f78dd-204c-42c1-b781-25367035645f
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