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69
Total
70
DNS
90
Email
65
Security
50
Network
60
Availability
Domainnankai.edu.cn
IPv41
IPv60
MX records2
StatusActive
Domain technical report

南开大学教工邮件系统 - 邮箱用户登录

nankai.edu.cn

Generated: 2026-08-10T11:30:39-05:00 · Cached result

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IPv41
IPv60
MX2
NS3

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

1 IPv4 address(es) detected.

!
IPv6 (AAAA)0 / 10 pts · Dns

0 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

2 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

97 day(s) remaining.

✓
Certificate lifetime10 / 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: 190.45.30.222.in-addr.arpa

i
IPv4 diversity20 / 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

HTTP/1.1 403 Forbidden

✓
HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

1 record(s)
222.30.45.190

AAAA

1 record(s)
;; communications error to 69.64.44.20#53: timed out

CNAME

0 record(s)
—

Not configured

MX

2 record(s)
5 hzmx01.mxmail.netease.com.
10 hzmx02.mxmail.netease.com.

TXT

3 record(s)
"04.04.2023"
"_globalsign-domain-verification=KCaJJFeiDclt7rBkevG7o4F6-L1o_tNL1t8YjLfzJP"
"v=spf1 include:spf.163.com -all"

NS

3 record(s)
dns1.nankai.edu.cn.
dns6.nankai.edu.cn.
dns.nankai.edu.cn.

SOA

1 record(s)
ns.nankai.edu.cn. admin.example.com. 2100086976 10800 900 604800 86400

CAA

0 record(s)
—

Not configured

DS

0 record(s)
—

Not configured

DNSKEY

2 record(s)
257 3 7 AwEAAbaOmh8ZZsMSS4YSmmLTNHAiOZzKWQe7wyPYsAmI6Htkzs7USwLJ Ng9dlQR0uiIbuiXScB/6BFTcpGIeTRGRBHiFs1i7weePLjRV1YWvl40Z W6UIBJbf40WzkomjSSnDn3hyTWjOXz3ycEjOfVkgvZ6gvSsrpP3hJ4Jh eXLiq/M7vM07RZMvY4fTdeFcFTYrUvF326YueMKETyetxUJN/KlqfIyq mnC8039qaX9T+h9QXRMel2S4D563X5ms+9uRF9jeogHM6L26ibzEpr5U F9TVp+H95StrwpZVZyDBlQh85xSCoKtfZs5QoIC6Ptj2Pi7vgWEhzQ+G CCvJU7by7m8=
256 3 7 AwEAAdPoVRStpPiKsv/3yO2BGaoYM99DByICe5RqOjN5GTqeh6XfbaZ9 Q+/7z7QRU0zolzybmR4ReYST/0ZM/T9zONWlIjljXzZyzYJ+crDhnwRh nAQMHpsa7ecJvW8MYU4PAKwT4mFWX7W6UTBZRBoawvCcGenoWyep0aSn He6QrpjH

RRSIG

3 record(s)
NS 7 3 600 20260826142052 20260727140748 47162 nankai.edu.cn. oTv0lMxj24w2mEYjOymv0vHnMKkWpZEacjOx9oS0kOtyk52TejZ5Ljsq Np+JK/GnIlMUqSeD9uON6oSQz/yJ8Avio0yzx5WoNGZFl0hsrNHv/scu j7VSRuS62AWyCjdiA4FNbInF2YhSSp/2G+qeQq7OlAmWwOA5LfnQzYCZ LU0=
TXT 7 3 600 20260909072246 20260810070031 47162 nankai.edu.cn. T85o3AlnFwDTvO4C/+yINoknH3Ol0A+x7KGdoVelY0ecJgoX1HgIV4oX 9JXfMMdJvksoCqDIfoS6Fn8djrBu6H2cmWW/ePSQ92XFEHAqaQgQGObD Q8W/jAWnPInWSLaUcV1tuBLy2JzFgMKQ3OTdXbeV+8QGwVcmGqyQHa+r wl8=
MX 7 3 600 20260825035944 20260726034203 47162 nankai.edu.cn. biS3oFewYwZ0pPFhpGWPG6DjBfQR+0qANDSnwwFzRaLwhx8FwkusLViC 8vor2vgPll7AdYDLXRkfdhMFvwaeLHDqumlKmX4F6C+TqNp7Tz0Nq2WH KBuHEE8fBhsZ3pAVyLrKGiXfon1UTsv8JQFHIFjlWmCryyhClSQhPSnk FTY=

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.163.com -all

DMARC

Configured
v=DMARC1; p=none; fo=1; ruf=mailto:dmarc@qiye.163.com; rua=mailto:dmarc_report@qiye.163.com

DKIM

Selector default
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDN+3JbtIgxbtBov9tH1L7yvjL8SfCMTLrd7LGV+Xu1+QeYin+RhKMhCGWzF9X/sgOSagAWbY+tNZDADS2yL8hv1MpyGuxS+2+4FWsboRbnFBYOO9eZfHg3a2tq5PfnvNeE035LCQWpfIr18PUq0Hkp3I/YpsXPsigqzIXlN65kawIDAQAB

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
南开大学教工邮件系统 - 邮箱用户登录
Description
Final URL
https://nankai.edu.cn/
HTTP status
206

HTTP

Status
HTTP/1.1 403 Forbidden
Final URL
https://nankai.edu.cn/
Version
2
Server
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
GlobalSign nv-sa
CN
*.nankai.edu.cn
Valid from
2025-10-14T21:51:05-05:00
Valid until
2026-11-15T20:51:04-06:00
Days remaining
97
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
222.30.45.190
285,13 ms
Cloudflare
1.1.1.1
222.30.45.190
720,32 ms
Quad9
9.9.9.9
222.30.45.190
734,44 ms
OpenDNS
208.67.222.222
222.30.45.190
755,86 ms
AdGuard
94.140.14.14
222.30.45.190
400,88 ms

IP, geolocation and ASNAssociated network information

222.30.45.190

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

hzmx01.mxmail.netease.com

Port 25: Closed/unreachable - 1.1 ms - 
Port 465: Closed/unreachable - 27.2 ms - 
Port 587: Closed/unreachable - 27.9 ms - 220 entmail-hzmx2-aliyun.singapore.163.org ESMTP ready

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