HistoryNet: Your Authoritative Source for U.S. & World History
historynet.com
Search our archive of 5,000+ features, photo galleries and articles on U.S. & world history, from wars and major events to today's hot topics.
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historynet.com
Search our archive of 5,000+ features, photo galleries and articles on U.S. & world history, from wars and major events to today's hot topics.
1 IPv4 address(es) detected.
0 IPv6 address(es) detected.
4 NS record(s); 2 or more required.
Authoritative zone record.
Both DS and DNSKEY are required.
Certificate authority restriction.
Agreement between public resolvers.
2 MX record(s).
SPF policy published.
DMARC policy published.
A DKIM selector was verified.
Mail transport policy.
TLS reporting policy.
47 day(s) remaining.
Full points require at least 30 days remaining.
0 of 9 evaluated headers detected.
PTR not detected.
Two or more IPv4 addresses receive full points.
AAAA availability.
At least one address family must resolve.
HTTP/2 200
Final URL uses HTTPS.
192.0.66.200
Not configured
Not configured
0 usb-smtp-inbound-1.mimecast.com. 0 usb-smtp-inbound-2.mimecast.com.
"workplace-domain-verification=vapZ1DUWm1NCpfPOENQP39xjNwR9U4" "yahoo-verification-key=FJM+tZEM6abjfTiT0vgc95hX3jJUZidoy19mzybTLTI=" "pinterest-site-verification=7c65c944ef55af02496310fa811fd4ba" "88D6E39623" "v=spf1 a mx include:usb._netblocks.mimecast.com include:spf.protection.outlook.com include:aspmx.sailthru.com include:mail.zendesk.com include:mg-spf.greenhouse.io include:242234635.spf02.hubspotemail.net -all" "facebook-domain-verification=jwxadxjgc60smb42o744gz52wb20f3" "atlassian-domain-verification=4p4CB0YJGNxskcxmubnX/fKvtqP6u8KRknplzFR3ZsH8zcSfjqtxNyCNIIktcAch" "0ed1fe018a05e24ac538324c8b95c1daa923de88bb" "adobe-sign-verification=f997e282ae74f5d0f963ca499e9b65c8" "atlassian-domain-verification=h9MZSj2L681ZNGD+UGF5Z6/GB87QahuAI5yZdDee7puwzZVg57ahTWEcZLt/Ikri" "MS=ms38843090" "google-site-verification=R6k7MrUlmO_eYvxif9lotuYy2XYz9Lm944mBUqDz5GQ" "google-site-verification=L-7qC1viGNUBdriKkmF4XthMHohC1UTFiuwxdriZz2M" "google-site-verification=9GMNE4GwDr0RTlx-S26esQUFvxBQegQd2lyI5n9qUn8"
ns-715.awsdns-25.net. ns-2033.awsdns-62.co.uk. ns-1294.awsdns-33.org. ns-117.awsdns-14.com.
ns-715.awsdns-25.net. awsdns-hostmaster.amazon.com. 2018052900 7200 900 1209600 600
Not configured
Not configured
Not configured
Not configured
Not configured
Not configured
Not configured
Not configured
Not configured
Not configured
v=spf1 a mx include:usb._netblocks.mimecast.com include:spf.protection.outlook.com include:aspmx.sailthru.com include:mail.zendesk.com include:mg-spf.greenhouse.io include:242234635.spf02.hubspotemail.net -all
v=DMARC1; p=quarantine; rua=mailto:alerts@historynet.com; ruf=mailto:alerts@historynet.com; pct=100; adkim=r; aspf=r
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxBaiZurQ8oBOd/NF+beSyrhNP6bsRc4ybMhwxMkUx96UwsS69HLO5M384RkBju6+1QiKxLq+T5uDyAQS0CG0ADWCEZMfOGfMsbQQ8b6WTc1t1V5w3okyBMZsKqVvamJbe8XLviREoxI4LliYltUYptpvvLe36i6sSYj4vLFpEOCaCSP2+/6d9QN7ZNOi6YSzKtcdUNVwLIx8qLnMciTldrD7AEZzIgJQb+Bu4ryA+S5J/M7JZqT9XemdtIuyNaI/+qWo3N7G/Gnbsl6nDIrWAhrg/nD6+ZH0zs/qJ7WQKmB+r5L33sXy3fgt50i7ELiuPLGdwLFsawULawWADF2dnQIDAQAB;
5 public resolvers queried.
8.8.8.81.1.1.19.9.9.9208.67.222.22294.140.14.14Port 25: Closed/unreachable - 30.2 ms - Port 465: Closed/unreachable - 4050.5 ms - Port 587: Closed/unreachable - 147.8 ms - 220 usb-smtp-inbound-1.mimecast.com ESMTP; Mon, 10 Aug 2026 00:25:54 -0700