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Total

DNS

Email

Security

Network

Availability

Domainusps.gov

IPv40

IPv60

MX records2

StatusActive

Domain technical report

usps.gov

Generated: 2026-08-10T17:10:07-05:00 · Cached result

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IPv40

IPv60

MX2

NS2

DiagnosticsMain findings and recommendations

IPv4 (A)0 / 30 pts · Dns

0 IPv4 address(es) detected.

IPv6 (AAAA)0 / 10 pts · Dns

0 IPv6 address(es) detected.

✓

Name server redundancy20 / 20 pts · Dns

2 NS record(s); 2 or more required.

✓

SOA record10 / 10 pts · Dns

Authoritative zone record.

✓

DNSSEC chain15 / 15 pts · Dns

DS and DNSKEY detected.

CAA policy0 / 5 pts · Dns

Certificate authority restriction.

DNS propagation0 / 10 pts · Dns

Agreement between public resolvers.

✓

MX records20 / 20 pts · Mail

2 MX record(s).

✓

SPF25 / 25 pts · Mail

SPF policy published.

✓

DMARC25 / 25 pts · Mail

DMARC policy published.

✓

DKIM20 / 20 pts · Mail

A DKIM selector was verified.

MTA-STS0 / 5 pts · Mail

Mail transport policy.

TLS-RPT0 / 5 pts · Mail

TLS reporting policy.

Valid TLS certificate0 / 55 pts · Security

No valid certificate was retrieved.

Certificate lifetime0 / 10 pts · Security

Full points require at least 30 days remaining.

HTTP security headers0 / 35 pts · Security

0 of 9 evaluated headers detected.

PTR reverse DNS0 / 30 pts · Network

PTR not detected.

IPv4 diversity0 / 35 pts · Network

Two or more IPv4 addresses receive full points.

IPv6 connectivity0 / 35 pts · Network

AAAA availability.

DNS resolution0 / 40 pts · Availability

At least one address family must resolve.

HTTP response0 / 40 pts · Availability

No successful HTTP response.

✓

HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

0 record(s)

—

Not configured

AAAA

0 record(s)

—

Not configured

CNAME

0 record(s)

—

Not configured

MX

2 record(s)

10 mxa-0038fd02.gslb.gpphosted.com.
10 mxb-0038fd02.gslb.gpphosted.com.

TXT

14 record(s)

"kzksv0tkhw73mw9sls64zb2rbvps2cd9"
"apple-domain-verification=jg8589RKn9CShT57"
"U0S4P86940"
"MS=ms24361233"
"00Dj0000000GyYH=1TBeq00000001mU"
"28z5w43cthhp0fp7r2wz2kdvzpc5qdtb"
"google-site-verification=OQ_VPfub4jwkGry5pP8aa9SIZZ2EMKDPIFf0chc5v_o"
"postman-domain-verification=bd465374e3a2c24761367e0816d8903a4483dc724a4919bcb00ddd3ea8138f7df0a92c3aa080d09afa387466783bcdb2fcd5024d7cc67c0dd1fec50d1aae8653"
"mgverify=d5e9a0f954450c1833d950f582162def7d15f362878b572d8b01d6879c693d9c"
"webexdomainverification.ERM0=2969cc97-b631-48e9-a0a2-19d73748510c"
"v=spf1 ip4:56.0.84.0/24 ip4:56.0.103.0/24 ip4:56.0.143.0/24 ip4:56.0.146.0/24 ip4:56.0.86.0/24 include:spf.protection.outlook.com -all"
"MH6e/G7XLU2niXRQkReKu3m7LLu99CVGHizxwkRgFwoNV6W2NvTVNmHBb7R3lwJKzV4AmSiUSvksq4mJD3NAcg=="
"docusign=d6abdee8-7254-4e21-a258-1852cb404a01"
"7yxnqcqlyvt7gsnzc265rhht81bq6188"

NS

2 record(s)

dns082.usps.com.
dns141.usps.com.

SOA

1 record(s)

dns141.usps.com. domainadmin.imail.usps.gov. 803777422 3600 1800 1209600 1800

CAA

0 record(s)

—

Not configured

DS

2 record(s)

23736 7 2 25B90917A357E883548DDEDC6A366E19335F9A8C316DBE3C3A3F4F9F F60AC38A
52546 7 2 982C46D67964C19602D25B7F0392D130EA2F17775F14EAFA80B2A828 34726BF6

DNSKEY

2 record(s)

257 3 7 AwEAAZ7Y9g+YmYLG36jnxwx+vZCAYpFcLjPnokC/R73ILRTRXxgluuQd 8hAPInC0YG0M+wnhTzEgR/19b+gwjG2F84SuTTvvzcd/ES8V6kYxcvPs /dWRGKQpC/Ow/BVgVfemnBy/S1el/pepGjUBeM+op2neCDmy5pa5/yK0 AP236T3gEP/aH83jOiPXZf8ysgzhP6eWoJCna4vwetR7KQpVc+rBcA5t Pyi/HdUFwiquYILvW1yTjNH58ccZI86Ml6+Dy2U/jXZ+IxTt43+XPwQ7 GEMjqZ0GIxU3f/hFY9UL8PN0I4lnxL77iWRjv2HZ9d3QQOhjQ2vlp9OI taWq0PxJdfE=
256 3 7 AwEAAb4Qxqzl/017M37zVi5IyDE557ngt7bxWe8dMUjrNXOaeA9nW+kX FDqjVvV6ZL00x8Z4b8efY/NJpRIEq8gmy9eu6mCaaMVm8MC39aTgtOT6 NcC7VZ55wNxJl7KY8kAxBcSM2EPVB6ge7CYIq6fi2GzNuMxFBswQsqJq poH99BHn

RRSIG

3 record(s)

SOA 7 2 3600 20260820044314 20260810034314 29412 usps.gov. ax4EjD5+OU+woFej/myi1p0dCfVYgFfmDJ+jDMJE6ppA4CPogr7Hme8a 9dY3igAVbXOYeh10FqMzm4ODsSC0LBEK0p4ggjTlZ9BGy4Cg8gJNi0PS L/iv2hIWNpshwTswBHxuuBjQ1sUBkWnxUPl5i2s405SvPmNsKkLXWxgz lZM=
NS 7 2 3600 20260818045651 20260808041900 29412 usps.gov. sdxFBDOfSQ5vhENFnqkLybdnmBuVO/4jOeNNWM7GIlsN2dQuovFCnJUu xCskg1vyPIPwsH8sJ9x/2jEBNU54IulypayFZ6utGgSzRdZaiYqIOAFe QP/vvzRAtnBMtjeXYoCGb3ZI1bLZhjGL6Vxu+dE69dAFfW2N4EIOUDzK 494=
MX 7 2 3600 20260818043001 20260808035800 29412 usps.gov. lD6NUrIQ9uT1sPdzAuLyGktbnT9Q6Lnxfift7ZzgvDQpyxk0B4V9B/ds 2FD3qfqHE5dqhHNdnM5sJjgfm4w1akeP69EmKrHiXo6gHddhsdyhoaq6 S7kArAg1Ieebp8jB2tLx9IMwiGkYnyw2tMBJEVbJFiRSngdTIM+ET1Rx XH4=

NSEC

0 record(s)

—

Not configured

NSEC3

0 record(s)

—

Not configured

SRV

0 record(s)

—

Not configured

NAPTR

0 record(s)

—

Not configured

TLSA

0 record(s)

—

Not configured

SSHFP

0 record(s)

—

Not configured

SPF

Configured

v=spf1 ip4:56.0.84.0/24 ip4:56.0.103.0/24 ip4:56.0.143.0/24 ip4:56.0.146.0/24 ip4:56.0.86.0/24 include:spf.protection.outlook.com -all

DMARC

Configured

v=DMARC1; p=reject; fo=1; ri=3600; rua=mailto:reports@dmarc.cyber.dhs.gov,mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com

DKIM

Selector k2

v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv2aC2KjGKLOwTweBY5A9RpjsxaBXR9r7OAU6U8/zn92ivImI75naUujWbItRI/QmL1jy5PWGqLwoUA0b90ObWaLDc+i9MtTNmGeWO009hr20fIxhGg6XBT2kjZ1DTThopSe1nAndsupmcBwlQ5Q6LJ+ZAxLcujnPIxM0ZBLmgpkv8u6RfY4eFP8OLvdAW3oSuB0DyLDigQX4Sj8wBO4YIdQH6AAmBeOsidsKAFNFUCpc3vCxtBDR12U+cBg724l3sBkMQ8evnz6idnqxq9QAVYh8k4kJ+RP+6cqTdy7LjIm8xY/bQNpQIpGUAuDo2DjLcCDun9DAI4Q/3z+Q0o9QuQIDAQAB;

Analyzed webpageMetadata and HTTP response

Title and description

No data

Title

Description

Final URL

https://usps.gov/

HTTP status

HTTP

Status

Final URL

https://usps.gov/

Version

Server

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Unavailable

Available

Issuer

Valid from

Valid until

Days remaining

Protocol

Cipher

Security headers

0 active

—

HSTSNot detected

—

Content Security PolicyNot detected

—

X-Content-Type-OptionsNot detected

—

X-Frame-OptionsNot detected

—

Referrer PolicyNot detected

—

Permissions PolicyNot detected

—

Cross-Origin-Opener-PolicyNot detected

—

Cross-Origin-Embedder-PolicyNot detected

—

Cross-Origin-Resource-PolicyNot detected

DNS propagationComparison across public resolvers

Public resolver comparison

Review

Differences detected

5 public resolvers queried.

ResolverServerResultLatency

Google

8.8.8.8

154,19 ms

Cloudflare

1.1.1.1

36,91 ms

Quad9

9.9.9.9

1.737,78 ms

OpenDNS

208.67.222.222

32,29 ms

AdGuard

94.140.14.14

149,67 ms

IP, geolocation and ASNAssociated network information

Visitor information

Visitor

216.73.217.62

reverse

country

country_code

region

city

latitude

longitude

isp

organization

asn

timezone

browser

Other

language

user_agent

Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

is_bot

Yes

cloudflare

SMTPEmail port connectivity

mxa-0038fd02.gslb.gpphosted.com

Port 25: Closed/unreachable - 50.5 ms - 
Port 465: Closed/unreachable - 4035.7 ms - 
Port 587: Closed/unreachable - 4020.9 ms -

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