IPv4 Addresses
amstrongjc.com. 300 IN A 104.21.38.218 amstrongjc.com. 300 IN A 172.67.139.83
IPv6 Addresses
amstrongjc.com. 300 IN AAAA 2606:4700:3033:0:0:0:6815:26DA amstrongjc.com. 300 IN AAAA 2606:4700:3035:0:0:0:AC43:8B53
Name Servers
amstrongjc.com. 1200 IN NS lamar.ns.cloudflare.com. amstrongjc.com. 1200 IN NS lina.ns.cloudflare.com.
Mail Servers
amstrongjc.com. 600 IN MX 10 mx.zoho.com. amstrongjc.com. 600 IN MX 20 mx2.zoho.com. amstrongjc.com. 600 IN MX 50 mx3.zoho.com.
SOA Details
amstrongjc.com. 1200 IN SOA lamar.ns.cloudflare.com. dns.cloudflare.com. 2411541321 10000 2400 604800 1800
Certificate Authority Authorization
No CAA records were returned at this registrable domain name. With no CAA policy, any public certificate authority (CA) may issue TLS certificates for names under this zone unless a parent publishes CAA; add issue / issuewild / iodef records to restrict issuance.
DMARC
Organizational policy (p): how receivers treat mail that fails aligned DMARC checks — none (monitor only), quarantine (often junk), or reject (block).
Subdomain policy (sp): when set, it applies to hostnames below this domain instead of p; if omitted, subdomains inherit the organizational policy.
pct: share of mail that gets quarantine/reject; 100 = all failing messages (default).
100Aggregate DMARC reports (ZIP/XML). Optional but recommended for visibility.
Forensic (per-failure) reports. Often omitted for privacy or volume.
amstrongjc.com. 300 IN DMARC v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=none; adkim=r; aspf=r
DKIM
amstrongjc.com. 600 IN DKIM v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDOA/1ECSD4vfSfjKD+hwRaMFFF8R6ebE7YQhy+sFotA/Y/TnHUI1w8C9ox5F9vcuZmKcrt4Qt923GiUP8BUnCQwy5sDHZp4sIFaVKPwQRNkGv6Kq9QkQyec4BoLBULfH6HHv/Yw5mo+1OmSvTs/01Q0Gv3cQUQHPvL7F8TXm4uhwIDAQAB
SPF (Sender Policy Framework)
| Qualifier | Mechanism | Target / value | Valid | Details |
|---|---|---|---|---|
| + Pass | include |
|
||
| ~ Softfail | all |
—
|
|
amstrongjc.com. 300 IN TXT "v=spf1 include:zohomail.com ~all"
MTA-STS
This hostname does not publish an MTA-STS policy (no v=STSv1 TXT at _mta-sts.<name> and/or no policy at https://mta-sts.<name>/.well-known/mta-sts.txt).
Text Content
amstrongjc.com. 300 IN TXT "zoho-verification=zb49263589.zmverify.zoho.com" amstrongjc.com. 300 IN TXT "hosting-site=amstrong-site"