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Total

DNS

Email

Security

Network

Availability

Domainfbo.gov

IPv41

IPv61

MX records0

StatusActive

Domain technical report

fbo.gov

Generated: 2026-08-11T07:27:53-05:00 · Cached result

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IPv41

IPv61

MX0

NS5

DiagnosticsMain findings and recommendations

✓

IPv4 (A)30 / 30 pts · Dns

1 IPv4 address(es) detected.

✓

IPv6 (AAAA)10 / 10 pts · Dns

1 IPv6 address(es) detected.

✓

Name server redundancy20 / 20 pts · Dns

5 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 records0 / 20 pts · Mail

0 MX record(s).

✓

SPF25 / 25 pts · Mail

SPF policy published.

✓

DMARC25 / 25 pts · Mail

DMARC policy published.

DKIM0 / 20 pts · Mail

No tested DKIM selector responded.

MTA-STS0 / 5 pts · Mail

Mail transport policy.

TLS-RPT0 / 5 pts · Mail

TLS reporting policy.

✓

Valid TLS certificate55 / 55 pts · Security

1 day(s) remaining.

Certificate lifetime2 / 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 DNS30 / 30 pts · Network

PTR: host.159-142-191-107.gsa.gov

IPv4 diversity20 / 35 pts · Network

Two or more IPv4 addresses receive full points.

✓

IPv6 connectivity35 / 35 pts · Network

AAAA availability.

✓

DNS resolution40 / 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

1 record(s)

159.142.191.107

AAAA

1 record(s)

2620:0:150:400d::130

CNAME

0 record(s)

—

Not configured

MX

0 record(s)

—

Not configured

TXT

1 record(s)

"v=spf1 ip4:34.194.230.233 ip4:34.230.107.215 ~all"

NS

5 record(s)

dns.gsa.gov.
dns4.gsa.gov.
dns3.gsa.gov.
dns5.gsa.gov.
dns2.gsa.gov.

SOA

1 record(s)

dns.gsa.gov. hostmaster.gsa.gov. 804796776 3600 180 1209600 3600

CAA

0 record(s)

—

Not configured

DS

4 record(s)

11522 8 2 A449A9A4B6080D8DA2CCDD6AA67F2DD4B166D36877C6B308503E212D C543618C
41302 8 2 A306F3CE9060627679B1D292BE19A4A7E72BAC8D85AB3DB168ED3C52 E5A03EB1
64657 8 2 3C7A295558C044CC6191B69371E2784FA3AF5ACB54CE2098BE87118F 8F37392D
15917 8 2 9DD34952B39F61FC475DA74B62049B95287254D414954F70D97AB039 13D09FA9

DNSKEY

2 record(s)

257 3 8 AwEAAaGkyrBkM8zw86RxVMUwXyfpdLIdGBRpvXl0TKQXNz2O6EgarG8V B9/bM/7rXoS5moFnT1q4GmhKoe3ombl7GEggXT68VWD/eLylpPpd1trQ kh7Gok15O1OFGtuNRzHmE/0GJuuvXLjwqIeWmxdrtrZsEvPV3khF9Mf1 RZoJy+oj
256 3 8 AwEAAa4FPXzTMnOz0nvx/I5SbFIZSjCKP2C7+CYE+OClHo3jTITbRAXH VMXo3+y/XkVzSECiqQdA6UXigoF3We0fjN+dA4EAzcbDFeTTfbMqIHoM tl6E3Zdf2a/bz3UGXFxTkGOuQBXpTK+iOFEycyKGwuAowvf8pkrWlAVo kHrXbEv5

RRSIG

6 record(s)

NS 8 2 10800 20260902183933 20260803183433 58336 fbo.gov. MaNfWUBGBCeyD+ybfYBb4XKcPjrFHZNjooMzkKNqkZickD4GW3cORQqp 7zaWl4byidDPPUYM8qLjuT8AloFDP1PAIuNIaflnk0VUXv8kCwcdP/Nu ZI+0AItUIvXZHC8hPM5epzKXV1dbT4tmTP1EQG8GoyMc4IRppMWs0bzX 6tI=
A 8 2 10800 20260902183933 20260803183433 58336 fbo.gov. N7h/RIjsngb6031N21TWxZ9ZNyxLGqqDR68nn0hlHwDlHkHFRLVZezGe VT6Isk3+CCtIkbQ0DphmW/gBPk1aFPwW1MLOv3QbusbPfbBB1tAr6Rgd 8H5wWoBJSZgijuUMgjqbfcBlSL/5XUuHyUqguuJS3PDvpkwYNI88PFrz vJA=
AAAA 8 2 10800 20260902183933 20260803183433 58336 fbo.gov. d777oOiK7+wcIoE480NQF0iRyouYCc/2ao+leqnnw1+8dGeb8Bl4b+9/ gvx8kWbRbvB+JmkMFeNKwB0uvhn+TOv6u5cKtZvMjd3WtWe1mQ4jcB9j bBqgZYqxBeqHks8UzmmWkPu1aIYJN6ALAB0pQytykIEWcZHKNIgrACFy bhY=
DNSKEY 8 2 10800 20260902183933 20260803183433 58336 fbo.gov. VVK27NosDP32CBNWv3ULX2YyL9h0CPTzHl5CiTKqqCnI9K+FDRLAbB9h KrI8fu2OpM4bMpqscI85KvUV5qdTkhOOWNM7rZJGruXXfAYDlYJLTGin GtYQjAi7ls+MVnVrwKGFxAMsOCadoQpYG9z6Xr0VYX5vAE3pK/nmkwjI +Wg=
DNSKEY 8 2 10800 20260902183933 20260803183433 64657 fbo.gov. O1Pr2bwaS+/wlZo6M+rkNct/kYd9LNX2hgB3eXgh3wYUbainvLdHaJnl +bIt50Q/K15sVxr9V1XGLUw/8C73l7Yhuea5J7XbwRCZvDQTJhJxEpvW Q/qnZfxqRvNnDPKgQZK4le1wnXr+GvZrOWwg2W2SDzOzxl58dRrLl97E xd0=
TXT 8 2 10800 20260902183933 20260803183433 58336 fbo.gov. NrfAPLbK26D0Ch0cs7n7GF1FdgSTMui0IppVkHzw2M+KWcpjzdFHlc23 84D8Dkhdjf7cbst8npkyJYwBRRsPfdHsKvl4LO/51vIPC0cuCMueeKvK gEUyfCb3zS5tvpqfTtoEOVjB6cujeAUw6VdfHxwxBCsM80WqaxnZgNSR 720=

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 ip4:34.194.230.233 ip4:34.230.107.215 ~all

DMARC

Configured

v=DMARC1; p=reject; pct=100; fo=1; ri=86400; rua=mailto:dmarcreports@gsa.gov,mailto:reports@dmarc.cyber.dhs.gov; ruf=mailto:dmarcfailures@gsa.gov

DKIM

Not found

—

Not configured

Analyzed webpageMetadata and HTTP response

Title and description

No data

Title

Description

Final URL

https://fbo.gov/

HTTP status

HTTP

Status

Final URL

https://fbohome.sam.gov/

Version

Server

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

DigiCert Inc

buyamerican.gov

Valid from

2025-08-03T19:00:00-05:00

Valid until

2026-08-12T18:59:59-05:00

Days remaining

Protocol

TLSv1.3

Cipher

TLS_AES_256_GCM_SHA384

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

Consistent

✓

Consistent propagation

5 public resolvers queried.

ResolverServerResultLatency

Google

8.8.8.8

159.142.191.107

145,01 ms

Cloudflare

1.1.1.1

159.142.191.107

114,29 ms

Quad9

9.9.9.9

159.142.191.107

50,15 ms

OpenDNS

208.67.222.222

159.142.191.107

161,51 ms

AdGuard

94.140.14.14

159.142.191.107

69,44 ms

IP, geolocation and ASNAssociated network information

159.142.191.107

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

fbo.gov

Port 25: Closed/unreachable - 1.2 ms - 
Port 465: Closed/unreachable - 4021 ms - 
Port 587: Closed/unreachable - 4021.2 ms -

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