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Total

DNS

Email

Security

Network

100

Availability

Domainnlrb.gov

IPv41

IPv60

MX records1

StatusActive

Domain technical report

Home | National Labor Relations Board

nlrb.gov

Generated: 2026-08-10T11:22:03-05:00 · Cached result

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IPv41

IPv60

MX1

NS2

DiagnosticsMain findings and recommendations

✓

IPv4 (A)30 / 30 pts · Dns

1 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 propagation10 / 10 pts · Dns

Agreement between public resolvers.

✓

MX records20 / 20 pts · Mail

1 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 certificate55 / 55 pts · Security

80 day(s) remaining.

✓

Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

HTTP security headers8 / 35 pts · Security

2 of 9 evaluated headers detected.

PTR reverse DNS0 / 30 pts · Network

PTR not detected.

IPv4 diversity20 / 35 pts · Network

Two or more IPv4 addresses receive full points.

IPv6 connectivity0 / 35 pts · Network

AAAA availability.

✓

DNS resolution40 / 40 pts · Availability

At least one address family must resolve.

✓

HTTP response40 / 40 pts · Availability

HTTP/1.1 200 OK

✓

HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

1 record(s)

20.41.44.121

AAAA

0 record(s)

—

Not configured

CNAME

0 record(s)

—

Not configured

MX

1 record(s)

10 nlrb-gov.mail.protection.outlook.com.

TXT

5 record(s)

"v=spf1 include:spf.protection.outlook.com include:_spf.psm.knowbe4.com -all"
"MS=ms90222033"
"box-domain-verification=209df7e8384268e706e2f281207e5a9288f5b4fc42806271b4fda2058dafe229"
"adobe-sign-verification=214f35d875fb359554535e0a428a41b05feef308d3fae2b65cc6f86830a4ba81"
"canva-site-verification=Lh62EOeYgsKl68c8bLX6tw"

NS

2 record(s)

auth40.ns.uu.net.
auth20.ns.wcom.com.

SOA

1 record(s)

auth20.ns.wcom.com. hostmaster.uu.net. 400966 21600 3600 1728000 21600

CAA

0 record(s)

—

Not configured

DS

2 record(s)

39918 7 2 BF138CF50620DAADA5AC3FB5C8BD6407245CE495C7CC8028969857CF 97AA3A4A
43008 7 2 8228307761AD29E6EFA3AB81E51B0C42572C55185CD46BA0BFF5AA65 C8F04708

DNSKEY

4 record(s)

256 3 7 AwEAAbVTsi4N7ECOTnvMs/5QksbgrWsQ5IYOrJhFM97xR/111KfkDtA/ pH1lfYUywmSMp64U7DmyhCDPJZ7ZJeC3tNrpIfZLIzAtNUNAZ7jIjGup sW5GKXve+QgplH5WdCHBaAv24Rd0PXFPg/DjB0QghBrqWLbiko9fDc8W cKuTN9XcSv4oW6BjQ63zUP6fPn7yLxLr40c5PinUWSNEkDV99b/3+4Hj vyQLoc7zj8CdZ3yX/0FWVnP9nA1+fQs2eSzWL9qrXF9yn99RYe7cxF94 ekslFaIkxRQrTaxaFCBqmzlVaG4iKFurZ3GUjxZT1xTIc2mzjLrpvnIl TpgNwIvboq8=
257 3 7 AwEAAbOqGPSVnG7Uw6rk51+rjdb4fmbS+cd6V0f32TA/o3LtMF3yT+vK e+ORXm+PfO1RVfUO0szxR9S4aREnxDK5OXxfps9s+8UZcwGm/PZdgj90 iOmwlhbpR9h19dxJUiBfwr+XVqFBbm6oiDjvO6ZCSD9+tMb6R1YzGKIn UemdLP2iVxOWHY/vzwr4dc2Psyl5rbnGAL6nrUiss9LTt7tO9z8YZG9e FmgFjxsU5Wna65wk0S/6c4QETnqNsR1fB56nIFiUROTuf74ppFd1LWhK kD1cu4/u8vNHNQRTYQOnYgFnk3F6mmQbXPZyTANJT7ZNLQJUELGPgWkV OlXA2oKHMAE=
257 3 7 AwEAAbdaDggvJZwXsyFj7jUADmK1V1CB4IGErag8GGB1QYtpm8habgf4 d0SvfEQPuJCILp0LSWEw+bBM5UuW4SEZ0Pt14sDjmguBBSQw6AZFRUif yJJlaRB1M7o2fQpNdWPJPQYh3YbA9x6e9LPUAtuw3zlLxI8ulHJ175Yy WU9IkJusPjmhLb/+3EFLZ9SSX3QeJULyAV14J0jqC4lE5/zBLJyDjxBO PqniYFaZXoQBRld+M80E42kB5acJUf8RoksDdP4VUU4TVDWuUW15REqB fCHzaNoLfx9C67y2KzI7HsZ7WGsGQ7STWR+VZDfWTtRxEsSYtybKjyfo OCZC7tdA0tM=
256 3 7 AwEAAenvmNC/nunQYBHluTgxJZe0/qsMD+vSuKaJX0N/c/jbFA1oDB7Y 1O8bI7L/xMvj8MOCkvS0T/jlrX7rdsz8dcfX6JeK33BbDbtv8XnsZgiU iPgGdLAegDMY3hwEWp9H0uI1P86oFtUO+bnhea/+f6I9Tqmsoq2GyM0P 5e6jjsUzLO6wV4AO+pRhxVMfszznDveTaGh07zjLPBk92P40oX/MSkQY msMrPXuvpQgYS3UmsJ/8E/D12Lrqs9RUJvDgEsurAWbBdR+I6wlcsoFP mWYsFE9O9zhtVq/lGLvT6H5xT4TxUpqAsb7HMAP+PRKyLsBI7m8+b8LT /TFlpHNsSWs=

RRSIG

4 record(s)

DNSKEY 7 2 3600 20260817030507 20260810020507 11735 nlrb.gov. tMsOSCG92FvrafGQ3N7Tp+q6B/WVSK8qc3STTKszz8UpAv+b/R4MW+zw o85mZECHQaE61gkmAERn1XWPavba3nt4ibppQZq+xxldtsFfmCimDnqD pLOopggbmKsqLat0gmufM1hW3utVkru8+L7pZpjAHUAmIAkkiqTUS9yu f8I/9G06O06u6T53S9XEt8DlKpXEDnD7W1mtRybUwKFeE+P4+Ne7AhbJ m/qshhYWCl1vLjDSR9ry0ZMScG7TpOwYG8BtIcBk8aKtj2CRgVV6fQJU DM87nzh9JB6kp0jN9Nr4ahwUeRwMDJxAhyzinNCKnH1hZzBKcoZ00HkK S5m/WQ==
DNSKEY 7 2 3600 20260817030507 20260810020507 21660 nlrb.gov. rj/ijCede6/CUDh20eVAQ9Ykxey/wNoFKI8J7Pdh1dursx7sSm8ZDsGx TUfvDcA61RoAKHm1v3S7BnMlsuyXyuyMp0JY6XEkgoSGYZRf79sv7y9/ f49OGaEpjvaTPRRQbrm5pqazIUPafP/W8bjC1tlt5ioz9A7zSi2AwpCu I2F2WtXrzFHNLKoR1YqMxXgnVtP2ETj7YrCj22iLMy4SSbl/I0o8ZjNV jxfwQJ7LTIzma7UISQphk1nHtguHI7l28d+kWPR6gcKJ0Sk4WSmoX94O 6RzwX9OPZJDBfk7B2ENo/A6XK2Xkxp1I4aDnnoskUMC5VgogtxxsPOcG 80gaFg==
DNSKEY 7 2 3600 20260817030507 20260810020507 39918 nlrb.gov. tkStutEsUhLGI0FxfD7HD/nbGOR8S6b/RGXO2aWt8pZJC2F4fu4+zOQ9 fcoJmNtBFVtcG4eiDgp/D1NNomxw9lsMLM3yY9TgipOVBU4Wprr9n2+P vGCdhSlXUgK28Gx+8RtP2gQJDhNYE9XikiOyb9zhwYjyNcBov+Inwcy0 qWR6xFgd/mC3FWG4ioGv6ck0EnCIvhPOnSxQD0jG2+gDq5anb3vkUG/Z b9Ob82xAtWYkVAJFVgfnMi5crF/Zjm5WuE0yDjpZ0gEAgfr1Eo6i3FyV u22OP3E/t0CrlH/BGCaE6srGGBbGw9H5XEMb3+xPihI0Y8+lNdq00ZaW fALllw==
NS 7 2 3600 20260817030507 20260810020507 11735 nlrb.gov. re3lLBHkd/C43Sg/iCLeTuaChOKX4N3Cyklm2oe7S4lqhleHb6SPhOD4 YgbjYX1lwPNJGWvO2s4v8cMrUq01wrjIElDNR/0lRUEExuhY5kel12ki haBemmyRJniqkTq6wLyrM6HIGK217SGw+1tMYGWhkG0jRbp6BcFZAtQk VfQ6Tq4H7XAtOVWg6hrQK1Myt4/ohFGpPPFrDTme7a+e+NG9DPRkoxFN j09RyT3Y+1fSa3SiUh5StuGi/2Lz3rrVfiMfnPyk5v4xlmtBCpQ+YQbT tNAxgFjM7Pm1ozx4EzPblzgWyT+5FNyPrlsQRq74NEpPk6WWkIKWjb2C aRG1hw==

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 include:spf.protection.outlook.com include:_spf.psm.knowbe4.com -all

DMARC

Configured

v=DMARC1; p=reject; pct=100; rua=mailto:reports@dmarc.cyber.dhs.gov,mailto:dmarcalerts@nlrb.gov; ruf=mailto:dmarcalerts@nlrb.gov

DKIM

Selector selector2

v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDDUSjh3pQBQliWKHQWsDB6RNo/ZMvMHDhZe4Zx69OnEWcMegZQN1giX/U9MeesxpvAO7Q7XbklziawA3aJncJNRxpVvHQIrnCW15C6AXQIsVH/sGSOmDR1zsErDE63Qazn/TXrSYobK2dioZpef/4DeNWtSl5wJm+q8k+NlLksaQIDAQAB;

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

Home | National Labor Relations Board

Description

Final URL

https://www.nlrb.gov/

HTTP status

206

HTTP

Status

HTTP/1.1 200 OK

Final URL

https://www.nlrb.gov/

Version

Server

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

DigiCert Inc

nlrb.gov

Valid from

2026-04-13T19:00:00-05:00

Valid until

2026-10-29T18:59:59-05:00

Days remaining

Protocol

TLSv1.2

Cipher

ECDHE-RSA-AES128-GCM-SHA256

Security headers

2 active

—

HSTSNot detected

—

Content Security PolicyNot detected

✓

X-Content-Type-OptionsImplemented

✓

X-Frame-OptionsImplemented

—

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

Consistent

✓

Consistent propagation

5 public resolvers queried.

ResolverServerResultLatency

Google

8.8.8.8

20.41.44.121

58,36 ms

Cloudflare

1.1.1.1

20.41.44.121

220,91 ms

Quad9

9.9.9.9

20.41.44.121

80,90 ms

OpenDNS

208.67.222.222

20.41.44.121

68,20 ms

AdGuard

94.140.14.14

20.41.44.121

63,10 ms

IP, geolocation and ASNAssociated network information

20.41.44.121

No data

success

country

region

city

asn

organization

isp

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

nlrb-gov.mail.protection.outlook.com

Port 25: Closed/unreachable - 34.4 ms - 
Port 465: Closed/unreachable - 4020.8 ms - 
Port 587: Closed/unreachable - 4020.8 ms -

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