Domain technical report
天津大学
tju.edu.cn
IPv41
IPv61
MX2
NS2
Analyze any domain
Get a complete DNS, email, SSL, HTTP and network analysis in seconds.
88
Total
80
DNS
90
Email
96
Security
55
Network
100
Availability
Domaintju.edu.cn
IPv41
IPv61
MX records2
StatusActive
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
2 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
112 day(s) remaining.
Certificate lifetime10 / 10 pts · Security
Full points require at least 30 days remaining.
HTTP security headers31 / 35 pts · Security
8 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 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)202.113.2.198
AAAA
1 record(s)2001:da8:a000:ab23::10
CNAME
0 record(s)—
Not configured
MX
2 record(s)10 hzmx02.mxmail.netease.com. 5 hzmx01.mxmail.netease.com.
TXT
2 record(s)"v=spf1 include:spf.163.com -all" "ms=2ba0d37d829774073275a41eea148f818d58b4ff"
NS
2 record(s)dns1.tju.edu.cn. dns2.tju.edu.cn.
SOA
1 record(s)ns.tju.edu.cn. admin.tju.edu.cn. 2100419533 3600 300 86400 3600
CAA
0 record(s)—
Not configured
DS
0 record(s)—
Not configured
DNSKEY
2 record(s)257 3 7 AwEAAbAQwUEMpRtAfX/E8H96vIamHC+EylK9Z6sTmYK06NKuURAIz9/p ueyoQYQyu49GfULaGX6WkWxFb7z7XNMY3AGl6pMxCH7/PVV/Kr4e0Cj2 dp3w1sT55ygFVxFmigYgd3+EfqNzgwIl3cNwl4RrDG1XRCz5ytdCcip5 jjSidt8Y4f7dR2kDNt7hCC3OgWe3Bct+choi0IIu+du2nMsv3j1PRrtE 5gyDb8MynbeCiLDkmJFGCowJe1EjO7cv2CDJ/nWNmzsbFQzi60T33NRV MJfbegmxoKg9PMjvIOH7H+Aq0J2J3YVJpr9uykCzxLWemYKmHByQzdVO v/xGzs5JLxc= 256 3 7 AwEAAbIk/xPDvjXvEv611OqdBamdMSI8QfRbOvJID3JqHC4AWGX5ZfG/ TItXyVUtUPZvn3Kg0zsc7udvgSXAL7kX7AMgeUzvtVLeAd5e5OmL6+F8 HBS5G3ZYiSm2MlQIK25d2KI9HaOckTpedeq/qmAz1gSgB/7JqFOtw94S te68N8s9
RRSIG
3 record(s)DNSKEY 7 3 3600 20260909135046 20260810134805 15467 tju.edu.cn. X+dAQc2ba98UQflQQzmLb+ROA84Ho7XN+F7xe+e0cbcfWaK0OngCA8gg uLWWFwUErGBzrnunFpezn0zG3v9wSmSdsFHz/C+81Hu7wuZbqc+WNemr gvR9xSwoSHPoSUcJYAas/nR5jzTzkErCEKUkMHuqiWo1PskdzWguZVkj XGk= DNSKEY 7 3 3600 20260909135046 20260810134805 31089 tju.edu.cn. X4szPZLyFa593Vcq4WjUnoYpSZHGKIg2GEK5eEPPywLrdczy5VO2QMdM uwpy11Rzktx3w6/pVwVkjH7sudCLLZLt86myG/b7jfKnJpUG2BbNyk3j VYPfbxPZRpo5r9G0SvHje8k4twjupTq5wyca6ZCj27UAjHA9k/abTAMz aVsQdEDUy5Od+or7/zqjNn/8w22ik0po7kO9r5as0J2QA5u64BZo+jKJ mBv+yLSl7K9cuaV0spOKRUURQX0ZQnpZI0X9brVLH6jJB9KFZ5lVHBZI nrtWMPN8ZQZI1E2gPXK1RkCor03TH52YeV4O4NTT4I1TiEDsDIAutlUB /AcRLg== MX 7 3 3600 20260905081139 20260806071643 15467 tju.edu.cn. c+e7Fn53qgvinE3IYCMKFRsfKw7SfN6XI6n5P3zegtGei/4jO/DGKni8 vBmTk8PIBE0ec8MlZfoXI5LrHYeDBvVs7TRjyzevB0u26cjV4g+o5NZJ oIXXlhH8vwiCqN81ar4GFPMh9EsgR2CUZV6TGdbwNEOX4GdEIgK9xYpB cYQ=
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
Configuredv=spf1 include:spf.163.com -all
DMARC
Configuredv=dmarc1;p=quarantine;fo=1;ruf=mailto:dmarc@qiye.163.com;rua=mailto:dmarc_report@qiye.163.com
DKIM
Selector defaultv=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDN77AZtmBn+5tfXsfYVFWA7jtzU2qbxjMjblQBoGuJuE4cUzMNa4XsObzux2DkI5nHl9wnwzOzM7tWvPv632WB0T3+G/OSfjfdDqHqoDZMYN4d29MPdMpSEmuwILrlYWCyb7qqil0w8G0UGvZDCA/Lf0AI2H7WFdBYglSPAak4IwIDAQAB
Analyzed webpageMetadata and HTTP response
Title and description
ExtractedTitle
天津大学
Description
Final URL
https://tju.edu.cn/
HTTP status
206
HTTP
Status
HTTP/1.1 200 OK
Final URL
https://tju.edu.cn/
Version
2
Server
***********
X-Powered-By
SSL and HTTP securityCertificate, protocol and security headers
SSL certificate
AvailableAvailable
Yes
Issuer
TrustAsia Technologies, Inc.
CN
*.tju.edu.cn
Valid from
2025-11-09T18:00:00-06:00
Valid until
2026-11-30T17:59:59-06:00
Days remaining
112
Protocol
TLSv1.2
Cipher
ECDHE-RSA-AES256-GCM-SHA384
Security headers
8 activeHSTSImplemented
Content Security PolicyImplemented
X-Content-Type-OptionsImplemented
X-Frame-OptionsImplemented
Referrer PolicyImplemented
Permissions PolicyImplemented
Cross-Origin-Opener-PolicyImplemented
Cross-Origin-Embedder-PolicyNot detected
Cross-Origin-Resource-PolicyImplemented
DNS propagationComparison across public resolvers
Public resolver comparison
ConsistentConsistent propagation
5 public resolvers queried.
ResolverServerResultLatency
Google
8.8.8.8202.113.2.198
44,56 ms
Cloudflare
1.1.1.1202.113.2.198
254,86 ms
Quad9
9.9.9.9202.113.2.198
750,46 ms
OpenDNS
208.67.222.222202.113.2.198
862,77 ms
AdGuard
94.140.14.14202.113.2.198
518,40 ms
IP, geolocation and ASNAssociated network information
202.113.2.198
No datasuccess
No
country
region
city
asn
organization
isp
Visitor information
Visitorip
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
hzmx02.mxmail.netease.com
Port 25: Closed/unreachable - 1.2 ms - Port 465: Closed/unreachable - 27 ms - Port 587: Closed/unreachable - 27.5 ms - 220 entmail-hzmx2-aliyun.singapore.163.org ESMTP ready