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51
Total
60
DNS
25
Email
61
Security
35
Network
60
Availability
Domainkorea.net
IPv42
IPv60
MX records0
StatusActive
Domain technical report

korea.net

korea.net

Generated: 2026-08-11T03:58:05-05:00 · Cached result

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IPv42
IPv60
MX0
NS2

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

2 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 record0 / 10 pts · Dns

Authoritative zone record.

!
DNSSEC chain0 / 15 pts · Dns

Both DS and DNSKEY are required.

!
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.

!
DMARC0 / 25 pts · Mail

DMARC policy not found.

!
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

20 day(s) remaining.

i
Certificate lifetime6 / 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 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 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

2 record(s)
121.78.33.166
139.150.252.17

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

0 record(s)
—

Not configured

TXT

1 record(s)
"v=spf1 ip4:125.60.3.216 ip4:125.60.2.245 ip4:125.60.2.236 ip4:125.60.2.237 ip4:125.60.2.238 ip4:125.60.2.241 ip4:125.60.2.242 ip4:125.60.2.240 ip4:203.240.75.175 ip4:125.60.3.221 ip4:125.60.33.0/24 ip4:27.101.217.96 -all"

NS

2 record(s)
ns2.ncia.go.kr.
ns1.ncia.go.kr.

SOA

0 record(s)
—

Not configured

CAA

0 record(s)
—

Not configured

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 ip4:125.60.3.216 ip4:125.60.2.245 ip4:125.60.2.236 ip4:125.60.2.237 ip4:125.60.2.238 ip4:125.60.2.241 ip4:125.60.2.242 ip4:125.60.2.240 ip4:203.240.75.175 ip4:125.60.3.221 ip4:125.60.33.0/24 ip4:27.101.217.96 -all

DMARC

Not configured
—

Not configured

DKIM

Not found
—

Not configured

Analyzed webpageMetadata and HTTP response

Title and description

No data
Title
Description
Final URL
https://korea.net/
HTTP status

HTTP

Status
Final URL
https://korea.net/
Version
0
Server
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Sectigo Limited
CN
*.korea.net
Valid from
2025-08-04T19:00:00-05:00
Valid until
2026-08-31T18:59:59-05:00
Days remaining
20
Protocol
TLSv1.2
Cipher
ECDHE-RSA-AES256-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
121.78.33.166, 139.150.252.17
263,00 ms
Cloudflare
1.1.1.1
121.78.33.166, 139.150.252.17
794,99 ms
Quad9
9.9.9.9
121.78.33.166, 139.150.252.17
271,62 ms
OpenDNS
208.67.222.222
121.78.33.166, 139.150.252.17
402,07 ms
AdGuard
94.140.14.14
121.78.33.166, 139.150.252.17
640,38 ms

IP, geolocation and ASNAssociated network information

121.78.33.166

No data
success
No
country
region
city
asn
organization
isp

139.150.252.17

No data
success
No
country
region
city
asn
organization
isp

Visitor information

Visitor
ip
216.73.217.62
reverse
country
country_code
region
city
latitude
longitude
isp
organization
asn
timezone
browser
Other
os
Other
language
user_agent
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
is_bot
Yes
cloudflare
No

SMTPEmail port connectivity

korea.net

Port 25: Closed/unreachable - 3.1 ms - 
Port 465: Closed/unreachable - 2.4 ms - 
Port 587: Closed/unreachable - 1.5 ms -

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