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Total

DNS

Email

Security

Network

100

Availability

Domainsmu.edu.sg

IPv42

IPv60

MX records1

StatusActive

Domain technical report

smu.edu.sg

Generated: 2026-08-10T07:06:56-05:00 · Cached result

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IPv42

IPv60

MX1

NS3

DiagnosticsMain findings and recommendations

✓

IPv4 (A)30 / 30 pts · Dns

2 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

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 certificate55 / 55 pts · Security

101 day(s) remaining.

✓

Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

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

2 record(s)

45.64.64.148
103.28.249.14

AAAA

0 record(s)

—

Not configured

CNAME

0 record(s)

—

Not configured

MX

1 record(s)

5 smu-edu-sg.mail.protection.outlook.com.

TXT

27 record(s)

"3M1Q8GM0IOXDYCHV3T3XG9NZL56H7Z8VZJT709IV"
"openatts a=dns-did; p=did:ethr:0xbcc4f0560ebe98f30d4838907e352c4c12458279#controller; v=1.0;"
"openatts a=dns-did; p=did:ethr:0x9f332a8bf5732ce0426df2798d9e096a0dec7720#controller; v=1.0;"
"webexdomainverification.=9d239fd9-1d8a-45a7-b4f2-92b0970ef70a"
"openatts net=ethereum netId=1 addr=0xf49ea53c595fd80213b56680ff7a165e8047cce0"
"openatts a=dns-did; p=did:ethr:0x866DB99B30A5f296cA45441644A34381Cf432660#controller; v=1.0;"
"globalsign-domain-verification=b40e51bded34408f89fda1cf33593aca"
"globalsign-domain-verification=6hVuccYcxLKp0gwqB4HqK8lvVPXJsD_bPXgmtyx17s"
"openatts a=dns-did; p=did:ethr:0xe66ca8fa23a2319c3eee619a3d06713eb3a830da#controller; v=1.0"
"openatts a=dns-did; p=did:ethr:0x3670e0c19fcba5bf3a1f8112d1a2b7b65eb8fa61#controller; v=1.0;"
"zoho-verification=zb96404674.zmverify.zoho.com"
"openatts a=dns-did; p=did:ethr:0x2df241739da39abad6e9d1079bdf6731fcb11961#controller; v=1.0;"
"onetrust-domain-verification=daa469b855f94d53bc947aac076f8373"
"openatts a=dns-did; p=did:ethr:0x89c1f3e15c8fc54d312c7a40e5dc38df767ce723#controller; v=1.0;"
"google-site-verification=FwJCv8T5DDC0H33SkGNUrhWsfAiRa_eFDXT_kbnI41s"
"openatts a=dns-did; p=did:ethr:0xc6f3623b07eb1e1fa99d92edebaa7a9553976e28#controller; v=1.0;"
"openatts a=dns-did; p=did:ethr:0xace66a41a60ce4190222be54806d6fc2096a9023#controller; v=1.0;"
"openatts a=dns-did; p=did:ethr:0x985da8e1aaec4d6acca8fd5a946d7569417545da#controller; v=1.0;"
"openatts a=dns-did; p=did:ethr:0xf4672773f058f1b50262a2e65e55e983987b9009#controller; v=1.0;"
"onetrust-domain-verification=be95f1756d284d84bf0f85479631baa4"
"abuseipdb-verification=mPZtuCzf"
"brevo-code:b1414e0a234265a2faa294058248ae06"
"openatts a=dns-did; p=did:ethr:0x1c653f670aa2fbe3f5c5b2f3d319329686f24038#controller; v=1.0;"
"openatts a=dns-did; p=did:ethr:0x07761069be3ef775fbc46b6beec08c775b450f7d#controller; v=1.0;"
"_globalsign-domain-verification=cC16G8OgqYZ5SiPxst0o8UVc2-U41BGYWkZtMYwnib"
"v=spf1 ip4:202.161.41.192/26 ip4:202.161.50.111 ip4:202.161.50.112 ip4:202.161.50.113 ip4:198.207.147.224/27 ip4:204.239.0.224/27 ip4:216.230.14.224/27 ip4:13.210.253.246 ip4:52.62.198.211 ip4:52.189.236.102 ip4:139.60.152.0/22 ip4:64.69.212.0/24 ip4:98.9" "7.248.0/21 ip4:64.94.116.21 ip4:103.151.192.0/23 ip4:185.12.80.0/22 ip4:188.172.128.0/20 ip4:192.161.144.0/20 ip4:216.198.0.0/18 include:spf.protection.outlook.com include:_spfb.smu.edu.sg ~all"
"google-site-verification=O0fRpQOozsguxM1z1RHZxHjyRMGyIJM47X0tk8kReQ4"

NS

3 record(s)

ns2.smu.edu.sg.
evsddns02.smu.edu.sg.
secdns2.starhub.net.sg.

SOA

1 record(s)

evsddns02.smu.edu.sg. administrator.smu.edu.sg. 674134113 3600 600 86400 1800

SPF

Configured

v=spf1 ip4:202.161.41.192/26 ip4:202.161.50.111 ip4:202.161.50.112 ip4:202.161.50.113 ip4:198.207.147.224/27 ip4:204.239.0.224/27 ip4:216.230.14.224/27 ip4:13.210.253.246 ip4:52.62.198.211 ip4:52.189.236.102 ip4:139.60.152.0/22 ip4:64.69.212.0/24 ip4:98.97.248.0/21 ip4:64.94.116.21 ip4:103.151.192.0/23 ip4:185.12.80.0/22 ip4:188.172.128.0/20 ip4:192.161.144.0/20 ip4:216.198.0.0/18 include:spf.protection.outlook.com include:_spfb.smu.edu.sg ~all

DMARC

Configured

v=DMARC1; p=quarantine; sp=none; rua=mailto:dmarc@smu.edu.sg; fo=1; pct=100

DKIM

Selector selector1

v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAmSxS3kmLjY5iVU4px4C2zpoosU5lA+XmpzTEsI0yGSASL1k63SqeIQIXsn9LMGOiq1nt+ZJkj6jeQ11vbEbNzVBrxJ8tpGIfVAOb037d+O+4Ep5XDMfMotymcWetvsF3kEkGCQIxgm1pSS+2GTPhMQ/ZtxKNVnhnxqob9sbG1fbO9EBbC3qKZ1kHT78zUqDKSq1LFOCnRHqh1n3h45sStb3tnOnA3iZhpgSPGhLToFfLRdcxw3ArzJjUHUjr0mep8/HQw88p1SgyGaAJcj1GIAiebADFHp8ZQnquyv4GS5bKCrD8Qxy/Db2tNR/5QLP9zN40tmTDYjJxfagTLOvUZQIDAQAB;

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

Description

Final URL

https://smu.edu.sg/

HTTP status

200

HTTP

Status

HTTP/2 200

Final URL

https://smu.edu.sg/

Version

Server

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

GlobalSign nv-sa

*.smu.edu.sg

Valid from

2026-05-05T00:21:23-05:00

Valid until

2026-11-19T23:21:23-06:00

Days remaining

101

Protocol

TLSv1.3

Cipher

TLS_AES_128_GCM_SHA256

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

103.28.249.14, 45.64.64.148

62,90 ms

Cloudflare

1.1.1.1

103.28.249.14, 45.64.64.148

79,47 ms

Quad9

9.9.9.9

103.28.249.14, 45.64.64.148

270,37 ms

OpenDNS

208.67.222.222

103.28.249.14, 45.64.64.148

760,14 ms

AdGuard

94.140.14.14

103.28.249.14, 45.64.64.148

565,98 ms

IP, geolocation and ASNAssociated network information

45.64.64.148

No data

success

country

region

city

asn

organization

isp

103.28.249.14

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

smu-edu-sg.mail.protection.outlook.com

Port 25: Closed/unreachable - 24.5 ms - 
Port 465: Closed/unreachable - 4015.4 ms - 
Port 587: Closed/unreachable - 4005.4 ms -

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