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Total

DNS

Email

Security

Network

Availability

Domainnsc.org

IPv42

IPv62

MX records1

StatusActive

Domain technical report

Offline Page

nsc.org

Generated: 2026-08-09T03:39:58-05:00 · Cached result

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IPv42

IPv62

MX1

NS2

DiagnosticsMain findings and recommendations

✓

IPv4 (A)30 / 30 pts · Dns

2 IPv4 address(es) detected.

✓

IPv6 (AAAA)10 / 10 pts · Dns

2 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 chain0 / 15 pts · Dns

Both DS and DNSKEY are required.

✓

CAA policy5 / 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

77 day(s) remaining.

✓

Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

HTTP security headers12 / 35 pts · Security

3 of 9 evaluated headers detected.

PTR reverse DNS0 / 30 pts · Network

PTR not detected.

✓

IPv4 diversity35 / 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

HTTP/2 403

✓

HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

2 record(s)

172.66.135.136
172.66.139.227

AAAA

2 record(s)

2606:4700:10::ac42:8be3
2606:4700:10::ac42:8788

CNAME

0 record(s)

—

Not configured

MX

1 record(s)

0 nsc-org.mail.protection.outlook.com.

TXT

15 record(s)

"reachdesk-verification=74SQNUmzWdsJs5yvPIIyTzIM0shT3BcBWfpf1GrXYnemoDQK0oObkOH7kEFwEw2R"
"8jzJ5v9WDQui0O0jNZoqvdh2HEChm6bo3GYBEHMHYYNXlSHObJGuwdTsKxrN4joU527U2TxoMfYDVsF0gD+0Jw=="
"v=spf1 include:mail.thoughtindustries.com include:_spf.salesforce.com include:mail.zendesk.com include:spf.protection.outlook.com include:oktamail.nsc.org include:spf1.formassembly.com include:sendgrid.net a:smtp1.nsc.org ip4:172.87.48.12 ip4:172.87.48.13" " ip4:172.87.48.14 ip4:172.87.48.15 ip4:172.87.48.228 ip4:172.87.48.230 ip4:172.87.48.231 ip4:172.87.48.234 ip4:172.87.48.235 ip4:168.245.65.171 ip4:4.7.16.128/26 ip4:38.108.186.0/24 ip4:199.87.209.0/24 ip4:4.53.200.128/26 ip4:52.62.199.66 ip4:52.19.0.156 " "ip4:3.97.56.230 ip4:18.233.211.170 ip4:216.35.11.64/26 ip4:64.41.147.64/26 ip4:65.74.175.0/27 ip4:216.55.46.192/26 ip4:207.211.31.0/25 ip4:205.139.110.0/24 ip4:216.205.24.0/24 ip4:170.10.129.0/24 ip4:63.128.21.0/24 ip4:170.10.133.0/24 ip4:185.58.84.93/32 " "ip4:207.211.41.113/32 ip4:207.211.30.64/26 ip4:207.211.30.128/25 ip4:216.145.221.0/24 ip4:170.10.128.0/24 ip4:170.10.132.56/29 ip4:170.10.132.64/29 ip4:207.58.147.64/28 ip4:216.22.15.224/27 ip4:43.228.184.0/22 ip4:103.47.204.0/22 ip4:103.2.140.0/22 ip4:20" "3.31.36.0/22 ip4:170.10.68.0/22 ip4:158.120.80.0/21 ip4:209.182.204.174 -all"
"google-site-verification=nSd_j3LPjbiCCHvpePJiHJ0ns7Yv_vhIpWUENLjDHB4"
"JQLbW8Ha2KIJqwZ6SDGiftJh3KUG9M5mAujBsvZRtu8="
"LXFrS3lwo4J0ujXeXf9e2l51avMF6Qxdc3uZXRzM62Xn0iyp/2OxKwH1XD22Z0cHqbq12ViPgTQl/I/qgaJxGw=="
"<<YTR-SDC-LQ8 >>"
"00D5w000004CjqL=1TBUT00000009WL"
"apple-domain-verification=WtVI5F2ns0EbGTcl"
"t/fwwoOTEVuyWcqoliSy4i1yHwNJpax3ngeaDJEmRCgaB+mEMqgH+TnhsDptopO7NAFOE/Gb7W+zssodrP8/Zg=="
"google-site-verification=Q3eTcqiAeqzkcMvq2maw1HHs1F4F4W72iviDx0wQS3Q"
"facebook-domain-verification=3amq19kl1hsh0mq3vgjsvcwkcm1nqq"
"ZOOM_verify_NynNZcRJSjuNf0nH5FIsrg"
"Security code: <<YTR-SDC-LQ8 >>"
"smartsheet-site-validation=Np7Zo7EPM7pxnyl4jJKMPxUHKsPijorC"

NS

2 record(s)

dan.ns.cloudflare.com.
adi.ns.cloudflare.com.

SOA

1 record(s)

adi.ns.cloudflare.com. dns.cloudflare.com. 2411343201 10000 2400 604800 1800

CAA

20 record(s)

0 issuewild "amazontrust.com"
0 issuewild "sectigo.com"
0 issue "amazontrust.com"
0 issue "digicert.com; cansignhttpexchanges=yes"
0 issue "awstrust.com"
0 issue "comodoca.com"
0 issuewild "digicert.com; cansignhttpexchanges=yes"
0 issuewild "awstrust.com"
0 issuewild "letsencrypt.org"
0 issuewild "ssl.com"
0 issue "sectigo.com"
0 issue "amazon.com"
0 issue "letsencrypt.org"
0 issue "ssl.com"
0 issuewild "comodoca.com"
0 issuewild "pki.goog; cansignhttpexchanges=yes"
0 issuewild "amazon.com"
0 issue "amazonaws.com"
0 issue "pki.goog; cansignhttpexchanges=yes"
0 issuewild "amazonaws.com"

DS

0 record(s)

—

Not configured

DNSKEY

0 record(s)

—

Not configured

RRSIG

0 record(s)

—

Not configured

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:mail.thoughtindustries.com include:_spf.salesforce.com include:mail.zendesk.com include:spf.protection.outlook.com include:oktamail.nsc.org include:spf1.formassembly.com include:sendgrid.net a:smtp1.nsc.org ip4:172.87.48.12 ip4:172.87.48.13 ip4:172.87.48.14 ip4:172.87.48.15 ip4:172.87.48.228 ip4:172.87.48.230 ip4:172.87.48.231 ip4:172.87.48.234 ip4:172.87.48.235 ip4:168.245.65.171 ip4:4.7.16.128/26 ip4:38.108.186.0/24 ip4:199.87.209.0/24 ip4:4.53.200.128/26 ip4:52.62.199.66 ip4:52.19.0.156 ip4:3.97.56.230 ip4:18.233.211.170 ip4:216.35.11.64/26 ip4:64.41.147.64/26 ip4:65.74.175.0/27 ip4:216.55.46.192/26 ip4:207.211.31.0/25 ip4:205.139.110.0/24 ip4:216.205.24.0/24 ip4:170.10.129.0/24 ip4:63.128.21.0/24 ip4:170.10.133.0/24 ip4:185.58.84.93/32 ip4:207.211.41.113/32 ip4:207.211.30.64/26 ip4:207.211.30.128/25 ip4:216.145.221.0/24 ip4:170.10.128.0/24 ip4:170.10.132.56/29 ip4:170.10.132.64/29 ip4:207.58.147.64/28 ip4:216.22.15.224/27 ip4:43.228.184.0/22 ip4:103.47.204.0/22 ip4:103.2.140.0/22 ip4:203.31.36.0/22 ip4:170.10.68.0/22 ip4:158.120.80.0/21 ip4:209.182.204.174 -all

DMARC

Configured

v=DMARC1; p=none; sp=none; ri=86400; rua=mailto:378ec7c06dee40bfb3995e9348dd8556@dmarc-reports.cloudflare.net,mailto:dmarc_agg@vali.email;

DKIM

Selector selector2

v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDZrTSq5JB9FZR55wsVmcn0MwxIlTH2RsJqZ3GPKMxZ9NMyzSEi6/3ewFgTVsJ7cXOzfmtWSsGHKmLFBOkLuLZPhgZ4FC5PH1Tp9dAHEoSwmVhekHDD3VNSkEVufXehGfxj8GWxhp9/TZB2C/5XTE9TyUK7kxTvqF4KFmgi2sLPpQIDAQAB;

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

Offline Page

Description

Final URL

https://nsc.org/

HTTP status

403

HTTP

Status

HTTP/2 403

Final URL

https://nsc.org/

Version

Server

cloudflare

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

Google Trust Services

nsc.org

Valid from

2026-07-27T12:44:35-05:00

Valid until

2026-10-25T13:44:14-05:00

Days remaining

Protocol

TLSv1.3

Cipher

TLS_AES_256_GCM_SHA384

Security headers

3 active

✓

HSTSImplemented

—

Content Security PolicyNot detected

—

X-Content-Type-OptionsNot detected

✓

X-Frame-OptionsImplemented

✓

Referrer PolicyImplemented

—

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

172.66.135.136, 172.66.139.227

48,86 ms

Cloudflare

1.1.1.1

172.66.135.136, 172.66.139.227

19,95 ms

Quad9

9.9.9.9

172.66.135.136, 172.66.139.227

25,16 ms

OpenDNS

208.67.222.222

172.66.135.136, 172.66.139.227

62,11 ms

AdGuard

94.140.14.14

172.66.135.136, 172.66.139.227

401,87 ms

IP, geolocation and ASNAssociated network information

172.66.135.136

No data

success

country

region

city

asn

organization

isp

172.66.139.227

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

nsc-org.mail.protection.outlook.com

Port 25: Closed/unreachable - 24.8 ms - 
Port 465: Closed/unreachable - 4050.8 ms - 
Port 587: Closed/unreachable - 4044.7 ms -

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