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Total

DNS

Email

Security

Network

Availability

Domainfudan.edu.cn

IPv41

IPv61

MX records3

StatusActive

Domain technical report

复旦大学 Fudan University

fudan.edu.cn

复旦大学（Fudan University），简称“复旦”，位于中国上海，由中华人民共和国教育部直属，中央直管副部级建制，国家双一流（A类）、985工程、211工程建设高校，入选珠峰计划、111计划、2011计划、卓越医生教育培养计划、卓越法律人才教育培养计划、国家建设高水平大学公派研究生项目，九校联盟（C9）、中国大学校长联谊会、东亚研究型大学协会、环太平洋大学协会的重要成员，是一所世界知名、国内顶尖的全国重点大学。

Generated: 2026-08-09T06:43:43-05:00 · Cached result

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IPv41

IPv61

MX3

NS4

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

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

3 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

244 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 DNS0 / 30 pts · Network

PTR not detected.

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 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)

175.186.248.54

AAAA

2 record(s)

;; communications error to 69.64.44.20#53: timed out
240c:c701:1:3513::54

CNAME

0 record(s)

—

Not configured

MX

3 record(s)

1 mx-fudan-edu-cn.icoremail.net.
10 mailrelay1.fudan.edu.cn.
10 mailrelay2.fudan.edu.cn.

TXT

1 record(s)

"v=spf1 ip4:202.120.224.0/24 ip4:61.129.42.0/24 ip4:202.120.241.1/29 ip4:202.120.242.1/29 ip4:202.120.243.1/29 ip4:202.120.244.1/29 ip4:202.120.246.1/29 ip6:2001:da8:8001::/48 include:spf.icoremail.net ~all"

NS

4 record(s)

ns4.fudan.edu.cn.
ns1.fudan.edu.cn.
ns2.fudan.edu.cn.
ns3.fudan.edu.cn.

SOA

1 record(s)

ns.fudan.edu.cn. root.ns.fudan.edu.cn. 2000005207 18000 14400 3600000 86400

CAA

1 record(s)

;; communications error to 69.64.44.20#53: timed out

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 ip4:202.120.224.0/24 ip4:61.129.42.0/24 ip4:202.120.241.1/29 ip4:202.120.242.1/29 ip4:202.120.243.1/29 ip4:202.120.244.1/29 ip4:202.120.246.1/29 ip6:2001:da8:8001::/48 include:spf.icoremail.net ~all

DMARC

Configured

v=DMARC1; p=quarantine; sp=reject; fo=1; rua=mailto:admin@fudan.edu.cn; ruf=mailto:admin@fudan.edu.cn

DKIM

Selector dkim

v=DKIM1;k=rsa;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDlsjX4/ZMUq+pWiZq6P9rncYjobRiBlyXR1zTCmJgOaUzj11nD39v64xthJt1nBhbuYNf+7F5dgUFyS11fCkFoW0vZ4XJPi1FdhNST6HVQkw/6g7KGkrUb3LAaYzuMR2+fzMGjF/7sp6hsrud1GX8Z9Utc5ACo7t409uUAhwaXkwIDAQAB

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

复旦大学 Fudan University

Description

Final URL

https://fudan.edu.cn/

HTTP status

206

HTTP

Status

HTTP/1.1 403 Forbidden

Final URL

https://fudan.edu.cn/

Version

Server

******

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

sslTrus

*.fudan.edu.cn

Valid from

2026-03-09T19:00:00-05:00

Valid until

2027-04-10T18:59:59-05:00

Days remaining

244

Protocol

TLSv1.3

Cipher

TLS_AES_128_GCM_SHA256

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

175.186.248.54

287,12 ms

Cloudflare

1.1.1.1

175.186.248.54

691,58 ms

Quad9

9.9.9.9

175.186.248.54

33,96 ms

OpenDNS

208.67.222.222

175.186.248.54

1.077,41 ms

AdGuard

94.140.14.14

175.186.248.54

316,18 ms

IP, geolocation and ASNAssociated network information

175.186.248.54

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

mx-fudan-edu-cn.icoremail.net

Port 25: Closed/unreachable - 27.9 ms - 
Port 465: Closed/unreachable - 332.9 ms - 
Port 587: Closed/unreachable - 304.3 ms -

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