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61
Total
70
DNS
90
Email
4
Security
35
Network
100
Availability
Domainsmartedu.cn
IPv46
IPv60
MX records1
StatusActive
Domain technical report

国家智慧教育公共服务平台

smartedu.cn

国家智慧教育公共服务平台,智慧教育,智慧教育平台

Generated: 2026-08-10T15:14:36-05:00 · Cached result

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IPv46
IPv60
MX1
NS4

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

6 IPv4 address(es) detected.

!
IPv6 (AAAA)0 / 10 pts · Dns

0 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 policy0 / 5 pts · Dns

Certificate authority restriction.

✓
DNS propagation10 / 10 pts · Dns

Agreement between public resolvers.

✓
MX records20 / 20 pts · Mail

1 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 certificate0 / 55 pts · Security

No valid certificate was retrieved.

!
Certificate lifetime0 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers4 / 35 pts · Security

1 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 response40 / 40 pts · Availability

HTTP/2 200

✓
HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

6 record(s)
123.125.16.232
123.125.16.230
121.194.10.213
123.125.16.227
123.125.16.229
123.125.16.228

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

1 record(s)
0 mx.sendcloud.org.

TXT

3 record(s)
"globalsign-domain-verification=7dBFn6kVMXyaPf4Ng6ogoGa0DGgglG3qnpGv2kdMfK"
"xwskdhjntntgx1gqdt9zbf6x23fpmlkr"
"v=spf1 include:spf.sendcloud.org -all"

NS

4 record(s)
dns.smartedu.cn.
ns2.cernet.net.
dns2.smartedu.cn.
ns3.cernet.net.

SOA

1 record(s)
ns2.net.edu.cn. hostmaster.dns.edu.cn. 2022062636 7200 1800 604800 600

CAA

0 record(s)
—

Not configured

DS

0 record(s)
—

Not configured

DNSKEY

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

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.sendcloud.org -all

DMARC

Configured
v=DMARC1;p=none;ruf=mailto:dmarc@smartedu.cn;rua=mailto:dmarc_report@smartedu.cn

DKIM

Selector mail
k=rsa;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDB1ahdzoPcmJnnLEHYI0NwqrUXBk/W9pfPCj3ANWkdZQO/Hoqm6OXakoRZRnvGbejIUex7zcnziHLfCpWwJvhJCAQ5ehCF9yatfaexYlnKExrfUL9GFOt8SGs3LcooZzjVA4blcRK6xB3+AcH7CgRpEYAS2xgxYatHrv/neQxaBwIDAQAB

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
国家智慧教育公共服务平台
Description
国家智慧教育公共服务平台,智慧教育,智慧教育平台
Final URL
https://www.smartedu.cn/
HTTP status
206

HTTP

Status
HTTP/2 200
Final URL
https://www.smartedu.cn/
Version
3
Server
openresty
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Unavailable
Available
No
Issuer
CN
Valid from
Valid until
Days remaining
Protocol
Cipher

Security headers

1 active
✓
HSTSImplemented
—
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
121.194.10.213, 123.125.16.227, 123.125.16.228, 123.125.16.229, 123.125.16.230, 123.125.16.232
268,90 ms
Cloudflare
1.1.1.1
121.194.10.213, 123.125.16.227, 123.125.16.228, 123.125.16.229, 123.125.16.230, 123.125.16.232
288,64 ms
Quad9
9.9.9.9
121.194.10.213, 123.125.16.227, 123.125.16.228, 123.125.16.229, 123.125.16.230, 123.125.16.232
299,89 ms
OpenDNS
208.67.222.222
121.194.10.213, 123.125.16.227, 123.125.16.228, 123.125.16.229, 123.125.16.230, 123.125.16.232
882,48 ms
AdGuard
94.140.14.14
121.194.10.213, 123.125.16.227, 123.125.16.228, 123.125.16.229, 123.125.16.230, 123.125.16.232
538,62 ms

IP, geolocation and ASNAssociated network information

123.125.16.232

No data
success
No
country
region
city
asn
organization
isp

123.125.16.230

No data
success
No
country
region
city
asn
organization
isp

121.194.10.213

No data
success
No
country
region
city
asn
organization
isp

123.125.16.227

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

mx.sendcloud.org

Port 25: Closed/unreachable - 84.4 ms - 
Port 465: Closed/unreachable - 4021.1 ms - 
Port 587: Closed/unreachable - 4104.5 ms -

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