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78
Total
80
DNS
70
Email
61
Security
85
Network
100
Availability
Domainscut.edu.cn
IPv41
IPv61
MX records4
StatusActive
Domain technical report

华南理工大学

scut.edu.cn

Generated: 2026-08-11T04:05:23-05:00 · Cached result

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IPv41
IPv61
MX4
NS3

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

3 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 policy0 / 5 pts · Dns

Certificate authority restriction.

✓
DNS propagation10 / 10 pts · Dns

Agreement between public resolvers.

✓
MX records20 / 20 pts · Mail

4 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

25 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 DNS30 / 30 pts · Network

PTR: www2.scut.edu.cn

i
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 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)
202.38.193.28

AAAA

1 record(s)
2001:da8:2000:2193::28

CNAME

0 record(s)
—

Not configured

MX

4 record(s)
5 mx2.scut.edu.cn.
5 mx4.scut.edu.cn.
5 mx3.scut.edu.cn.
5 mx1.scut.edu.cn.

TXT

3 record(s)
"MS=D7C9C4ABF17FE577B3147ECB307CB7618E56ABE9"
"Ge1TzgDcBWb"
"v=spf1 include:spf.scut.edu.cn -all"

NS

3 record(s)
orange.gznet.edu.cn.
emily.scut.edu.cn.
scutsv33.scut.edu.cn.

SOA

1 record(s)
scutsv33.scut.edu.cn. nic.scut.edu.cn. 2100002569 3600 720 604800 1800

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 include:spf.scut.edu.cn -all

DMARC

Configured
v=DMARC1; p=none; fo=1; ruf=mailto:dmarc@scut.edu.cn; rua=mailto:dmarc_report@scut.edu.cn

DKIM

Not found
—

Not configured

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
华南理工大学
Description
Final URL
https://www.scut.edu.cn/
HTTP status
206

HTTP

Status
HTTP/1.1 200 OK
Final URL
https://www.scut.edu.cn/
Version
2
Server
Apache/2.4.65 (Unix)
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
WoTrus CA Limited
CN
*.scut.edu.cn
Valid from
2025-08-04T19:00:00-05:00
Valid until
2026-09-05T18:59:59-05:00
Days remaining
25
Protocol
TLSv1.2
Cipher
AES128-SHA

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
202.38.193.28
313,26 ms
Cloudflare
1.1.1.1
202.38.193.28
274,67 ms
Quad9
9.9.9.9
202.38.193.28
436,80 ms
OpenDNS
208.67.222.222
202.38.193.28
1.440,71 ms
AdGuard
94.140.14.14
202.38.193.28
571,77 ms

IP, geolocation and ASNAssociated network information

202.38.193.28

Identified
success
Yes
country
China
country_code
CN
region
Guangdong Sheng
city
Guangzhou
latitude
23.1317086
longitude
113.2657337
asn
4538
organization
South China University of Technology
isp
China Education and Research Network Center
timezone
Asia/Shanghai

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

mx2.scut.edu.cn

Port 25: Closed/unreachable - 265.1 ms - 
Port 465: Closed/unreachable - 266.2 ms - 
Port 587: Closed/unreachable - 4286.8 ms -

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