Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
howstuffworks.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 01:51:03 UTC · ↺ Refresh
MX Hostnames
- alt1.aspmx.l.google.com
- alt2.aspmx.l.google.com
- aspmx.l.google.com
- alt4.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
- 3.168.102.33
- 3.168.102.5
- 3.168.102.13
- 3.168.102.27
Mail Server IPs
- 142.251.16.27 ↩ bl-in-f27.1e100.net
- 2607:f8b0:4004:c06::1a ↩ bg-in-f26.1e100.net
- 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
- 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
- 173.194.76.26 ↩ ws-in-f26.1e100.net
- 2a00:1450:400c:c00::1b ↩ ws-in-f27.1e100.net
- 108.177.123.26 ↩ lcscld-in-f26.1e100.net
- 2800:3f0:4003:c0f::1b (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-230.awsdns-28.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-230.awsdns-28.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1026.awsdns-00.org
ns-1723.awsdns-23.co.uk
ns-230.awsdns-28.com
ns-514.awsdns-00.net
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.google.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=5; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 5% of failing messages only
DKIM Selectors
✓ 2 found
google._domainkey
k1._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
24 records- r3l0yk16b9wf7xsx9qy94ktd9zmj0tvz
- fastly-domain-delegation-r4QqUNzN2Z5GPFvD-568289-2023-01-30
- google-site-verification=q4m_Qtyp6r5s8NwvpLjzlAuj-7Hox7pigEAoTiLkWHs
- citrix-verification-code=d409e05c-b335-425e-a215-204389a91206
- zrtl4rb41l611631srp8b1c1klpphl31
- atlassian-domain-verification=kpW93Gl0HucESn1XIuigK0EfPnA8gPRAkNY/HH6ej3NcfKLftxRcrx0fvla1iciX
- SPFv=spf1 include:_spf.google.com ~all
- facebook-domain-verification=6fj5bqy5ypyad2lqfo7l56cnica6ka
- mongodb-site-verification=DZabVN0N2nIFzrDovMKp6dmih13qM1il
- docusign=f6ed7987-8396-476d-b76e-1251c0fa75ff
- fastly-domain-delegation-lnYFR7XAspYWCDr-#518056-2022-07-19
- google-site-verification=B4YiM1AMRmRxZokjTlp9fEsXeFgZ1dCK5FtD2gpb8ak
- MS=ms51740217
- onetrust-domain-verification=d381bc7429ba4303bc288952d3e2291b
- SPFv=spf1 include:servers.mcsv.net ?all
- fastly-domain-delegation-lHDS6yvr4CVHHKnr-#526123-2022-08-23
- MS=ms74645168
- cursor-domain-verification-8x16vk=nSAF8Y95RSKRSB5oIBt9seThK
- google-site-verification=2vj8liJykIp_twB7iqGJXSvu1gdjhj2WRtXlbv50hdE
- ahrefs-site-verification_e608251d484c28256d6e39259fb2d78c0971f422502addc2f3457561c55c3db7
- d3vc9g5lfoexwz.cloudfront.net
- google-site-verification=KAUbQ2E7KXxBCMdp42KCmke3GHEejxhLW_WStVM6kfw
- onetrust-domain-verification=6a0f32b404ce44ab9f846a571b40db1e
- google-site-verification=vVzzWl6hH3GlrYq6c7gH03Fle_YzB_VPK8J65ApD4Rw
Full email verification for howstuffworks.com
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