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Total

DNS

Email

Security

Network

100

Availability

Domainasp.net

IPv45

IPv60

MX records1

StatusActive

Domain technical report

ASP.NET Core, an open-source web development framework | .NET

asp.net

Build web apps and services that run on Windows, Linux, and macOS using C#, HTML, CSS, and JavaScript. Get started for free on Windows, Linux, or macOS.

Generated: 2026-08-08T22:53:06-05:00 · Cached result

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IPv45

IPv60

MX1

NS4

DiagnosticsMain findings and recommendations

✓

IPv4 (A)30 / 30 pts · Dns

5 IPv4 address(es) detected.

IPv6 (AAAA)0 / 10 pts · Dns

0 IPv6 address(es) detected.

✓

Name server redundancy20 / 20 pts · Dns

4 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

87 day(s) remaining.

✓

Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

HTTP security headers16 / 35 pts · Security

4 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 connectivity0 / 35 pts · Network

AAAA availability.

✓

DNS resolution40 / 40 pts · Availability

At least one address family must resolve.

✓

HTTP response40 / 40 pts · Availability

HTTP/2 200

✓

HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

5 record(s)

20.231.239.246
20.70.246.20
20.76.201.171
20.112.250.133
20.236.44.162

AAAA

0 record(s)

—

Not configured

CNAME

0 record(s)

—

Not configured

MX

1 record(s)

1 asp-net.mail.protection.outlook.com.

TXT

3 record(s)

"MS=ms47371022"
"v=DMARC1; p=none pct=100; rua=mailto:d@rua.agari.com; ruf=mailto:d@ruf.agari.com; fo=1"
"v=spf1 include:spf.mandrillapp.com include:spf.protection.outlook.com ip4:64.34.80.172 -all"

NS

4 record(s)

ns1-04.azure-dns.com.
ns4-04.azure-dns.info.
ns2-04.azure-dns.net.
ns3-04.azure-dns.org.

SOA

1 record(s)

ns1-04.azure-dns.com. azuredns-hostmaster.microsoft.com. 1 3600 300 2419200 300

CAA

1 record(s)

0 contactemail "caarecordaware@microsoft.com"

SSHFP

0 record(s)

—

Not configured

SPF

Configured

v=spf1 include:spf.mandrillapp.com include:spf.protection.outlook.com ip4:64.34.80.172 -all

DMARC

Configured

v=DMARC1; p=none

DKIM

Selector mandrill

v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCrLHiExVd55zd/IQ/J/mRwSRMAocV/hMB3jXwaHH36d9NaVynQFYV8NaWi69c1veUtRzGt7yAioXqLj7Z4TeEUoOLgrKsn8YnckGs9i3B3tVFB+Ch/4mPhXWiNfNdynHWBcPcbJ8kjEQ2U8y78dHZj1YeRXXVvWob2OaKynO8/lQIDAQAB;

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

ASP.NET Core, an open-source web development framework | .NET

Description

Build web apps and services that run on Windows, Linux, and macOS using C#, HTML, CSS, and JavaScript. Get started for free on Windows, Linux, or macOS.

Final URL

https://dotnet.microsoft.com/en-us/apps/aspnet

HTTP status

200

HTTP

Status

HTTP/2 200

Final URL

https://dotnet.microsoft.com/en-us/apps/aspnet

Version

Server

Kestrel

X-Powered-By

ASP.NET

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

Microsoft Corporation

videobreakdown.com

Valid from

2026-07-27T03:08:00-05:00

Valid until

2026-11-04T01:08:00-06:00

Days remaining

Protocol

TLSv1.3

Cipher

TLS_AES_128_GCM_SHA256

Security headers

4 active

✓

HSTSImplemented

✓

Content Security PolicyImplemented

✓

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

20.112.250.133, 20.231.239.246, 20.236.44.162, 20.70.246.20, 20.76.201.171

44,44 ms

Cloudflare

1.1.1.1

20.112.250.133, 20.231.239.246, 20.236.44.162, 20.70.246.20, 20.76.201.171

64,40 ms

Quad9

9.9.9.9

20.112.250.133, 20.231.239.246, 20.236.44.162, 20.70.246.20, 20.76.201.171

58,11 ms

OpenDNS

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

asp-net.mail.protection.outlook.com

Port 25: Closed/unreachable - 26.3 ms - 
Port 465: Closed/unreachable - 37.6 ms - 
Port 587: Closed/unreachable - 20.2 ms -

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