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Total

DNS

Email

Security

Network

100

Availability

Domainncu.edu.tw

IPv41

IPv61

MX records2

StatusActive

Domain technical report

ncu.edu.tw

Generated: 2026-08-10T22:44:42-05:00 · Cached result

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IPv41

IPv61

MX2

NS3

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

3 NS record(s); 2 or more required.

✓

SOA record10 / 10 pts · Dns

Authoritative zone record.

✓

DNSSEC chain15 / 15 pts · Dns

DS and DNSKEY detected.

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.

DKIM0 / 20 pts · Mail

No tested DKIM selector responded.

✓

MTA-STS5 / 5 pts · Mail

Mail transport policy.

✓

TLS-RPT5 / 5 pts · Mail

TLS reporting policy.

✓

Valid TLS certificate55 / 55 pts · Security

22 day(s) remaining.

Certificate lifetime6 / 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: 140-115-0-251.cc.ncu.edu.tw

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)

140.115.0.251

AAAA

1 record(s)

2001:288:3001::251

CNAME

0 record(s)

—

Not configured

MX

2 record(s)

5 mx3.cc.ncu.edu.tw.
5 mx1.cc.ncu.edu.tw.

TXT

4 record(s)

"brevo-code:b1414e0a234265a2faa294058248ae06"
"v=spf1 redirect=_spf.ncu.edu.tw"
"Foxit-domain-verification=968d063ee3b3e58d91c6b71226c3b655"
"Zz0Cq-7HrEwmqpjcyjemyGATJps4hAvMf0Cmg3nzjNc"

NS

3 record(s)

dns1.ncu.edu.tw.
dns.ncu.edu.tw.
dns2.ncu.edu.tw.

SOA

1 record(s)

dns.ncu.edu.tw. abuse.ncu.edu.tw. 2026080403 7200 3600 1209600 3600

CAA

0 record(s)

—

Not configured

DS

1 record(s)

63823 10 2 9C5B44DC0A3DBA306D64F8FF2672EDED4DD59FBC85205933EC4AD6ED 50453D4D

DNSKEY

2 record(s)

256 3 10 AwEAAY/rf4RxFhQ8CBXDcF2zMWxV9uG/3mCEKmWST1pRSTILw/xy26ov dI1xsfKbVNBkQI34m305STeCEri72FNJUye54QZ5ncq87I6ZRCt4BYwR 9X5HM7JSLqYCwYniSV4DNEAImYPX/7Sytuxgl6xButXGWTUtaC2e8bsN 2yW7WmaUBpfW7OLRpGDQM++HhaJHDSBbPegWMR8SLjRgnplUMP3AitAt 0Hnshkd92lv937Dv8IEo0SiREid9GrekB8tdSSuDDCAlifAlXw6l0Z2F foUiTBR4uejVh/RCcQizmcGTKcu67c2uNgpDCjEge5d91qGxEwoYiRzV EQplQXbJ0AE=
257 3 10 AwEAAdU8BFLRqJYScFXA1ifpVta/AAdS3BQv9ucezbnXM1ZZ1WUEtD/B pAPDGCbWETGIJB1f2rP53pDZb6925qTgVnwlewKu7LYk6h5eKlOnKCBF bEGc8p5o4vyJAj6PGdwKgiM6mih+jishR4+bq7euIEd7qDIMJYNSo1EP 9ycXrTIzaw6Ia0E/oGo4gyWQFSaoo5B+0f8Cvpvb2rLMMfVIzhztkSyE N1bAAXhEQnsr5Y4bRWAyLa5juzcJQsaw6uVqP8a2vcWXtxp3HogoZbTV QmaggVRkBV/FjEHS8VG5jfJOkMMWSRiJPQGslj6Jc96bx36vbvVZaZr+ XHBNo4ZAQriQTobGC/RdmY6QdoxzPo4Fn7Ki0EBRvbqZiFXknY7281p2 9ouEyc+RU25dgADaau54rUZ+MowBPMSTGG2Ouurr133uJ7fKCBVp4WHI NOuMP3uKMHchGAIHiwJF7VWDXEUn32VYHok9J0DknU9Ptl5Iz98JEY9B +co1QqeNamBOplyz9AplLtFUJy7/75OSrZlPrYw+xRn917qKWj5k2XIQ rZLqLhOAs1GgSrFgQ8YWL8hqBlMJmCt88y92YAaFhtF8T4synbL/XlYh sNCGG5gSwSA4neSPBJJ4V4UOVSdFzjcOThw1/uBE61g2e/ifcxERo/Bz bnYF6XJzZqliHfvd

RRSIG

6 record(s)

SOA 10 3 21600 20260906170006 20260807170006 51666 ncu.edu.tw. TDiVAPJrkVAcym/6UUXsRqcT8RVPAFg/rttJv4rBCMeqV0uAsbkrJa47 BhlxRX4n9bvNqxYulLUm5J8NmRkLCvOeP+QhMAxU8T4ZHUSG9+E1bDmR 0UxLJErRlnpTaoO8rEpVWj3qM3E/X65L7E3Y9E5WhiKQoLqoKClzoRvi cY5OX/1aKvZPLNDQjlv/fv0C234j7RrdtzM+Lnm8G1vWsoJkhUKfDG3C C+VNLcGcQZ9mbaNkzqNS4YXRlz/i54Rs49FDOBABcVJc5HY1rHsWJHOq oeTBu6Po/rTvYlVtZdArgra9HYe4zLZm/aF12Jl4eIWH66jyOyGOwqP5 Kk8yvg==
TXT 10 3 21600 20260906170006 20260807170006 51666 ncu.edu.tw. LuroN3tvYwSLraKAn7JlRHzdnREHgtnrUw9Y3Nsna2T0isE375VgAxIz aFEfK2Sq///adb6xJ3oVNW4za6iG7wbicfkhue/aJ1LayMOe9u4fYRsY 0ZABi64OUYJZhsSuK5cNa6K0bXkxN4rKbJvuAuL2Ub/rcPca3d0NZDAS BSGafLG1fzZsW462y7W8uyrIH2hGgi3vkEkaD9UlTkkCXGtBCprATXZ2 Bk34b19OL02ziznXn4UPh8qIwXKxY7U3UeH67FYKN/lTNmIo7/1pM0pC 1G/tXz2v8scldI8dOPoAtmz0G5mUZUOOnnPtcZM+CHxLzWgqBQt55Vhu VhLQcw==
DS 8 3 300 20260814091841 20260810084515 52491 edu.tw. Qi8oecMaXLKOout9HN4XgPa7VC+X2DI889XJyCeZefDniCcIVj2g1mOp nqmOVlfjj4HPkJ+BHwDveDRBrDTVAHz5jeV0XCV+vbQPmEza5jyl7JuX Ja6NXqzYj1qkeZFVLWVyWHteTJwZ5J1NOFypP2WnGSlt7X51EHyMlWQ6 x2E=
A 10 3 21600 20260906170006 20260807170006 51666 ncu.edu.tw. dFaiqL5fndhFLWgbcyql768PJWQQv6u2BOXvQqxtEUvful3YzVwyzf/B HaeH1JYQT29MSbl7HOqwCn7FKvvy5zQ7fpdHe7cEWge/y67pBJVdOOct OFVAIBLfEGOfTXOREjsZi9Oh0AbcFRIPDpKVRD0Non9l3OxtZ0n+qzqr Kz9oho293Zzd2eS/SNIqsVO5IA/Xqbda52RQqF29F4cJ0ibNBSwaT2Qr AsTK89i4nxdQcBUccKzRmJxL3wc7VoBecbMmKgPWEWNMjXc/VqGHnz+I 8SbjQ85L4qWUpQwe6TXbXfIWqUZVYgC6uFMfWm+DTX8YN4vEGh9CyBKC YYYTTA==
NS 10 3 21600 20260906170006 20260807170006 51666 ncu.edu.tw. HGQXvmg9az/c5Ax9kE1gn/p4+dArgj0b/WHJqOb0TcKPm3s0cddX8xvy g2OjeGTU8nSgklEfViAfp9UQs37T//9xu3i0q0HCYFQkZOLAXD1CcBm5 jMQB1z61bjEwD9FNk/yKs1ekG5CLBJNKZjNL/rHy1Rx08c8R7b4JUPGJ 8RuzXesZDA4t5opl2T2/8tqPqx7YVLtkN4cd3pM5YaXXbpjNIqTM8O9G zDcCR619SQVj3f+KvYWCbm3FOe1LLa75lQ1hVSFz83PAod2HZOSEPvWD jXNiJtaXuf4Vv9Z4n84tOZUcaex8/4bfk6swzIT2hvhUg9u3kH1WO/Uo mjCq8Q==
AAAA 10 3 21600 20260906170006 20260807170006 51666 ncu.edu.tw. jsxr8VXSxm3GA+WiLBDxpe9yGiWHN82EYxBqk7oYk6sgkvB1znDfExnY dBxjzNPdIIbqBI+5FRZTO1AyEVArM9f5xLs9xFNgRDr0i2sY4czv15rT bqwrA9YMGFv+chUFO9YADJ6U8cAYkox3Fx6iQTvPGzKZeEjzaQdK/Bqw LB5FVvj4chyBnYPYcFnOpqfrEdkm1r9qQltDh85jHF7gIzOV5xt+4AGX Z9teBO8+6SY8wNu/vcLf82CeM4BiNO1xYuJzc4x9XLIv/xTtNx7hFU9W robhMvMPitXlnV1t9r0hk3WXSl8Eg0zJhyw8GJo0QkGB+wyAgJi7KLZp bcZ+Sw==

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 redirect=_spf.ncu.edu.tw

DMARC

Configured

v=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.com

DKIM

Not found

—

Not configured

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

Description

Final URL

https://ncu.edu.tw/

HTTP status

206

HTTP

Status

HTTP/1.1 200 OK

Final URL

https://ncu.edu.tw/

Version

Server

nginx

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

Let's Encrypt

ncu.edu.tw

Valid from

2026-06-04T11:12:33-05:00

Valid until

2026-09-02T11:12:32-05:00

Days remaining

Protocol

TLSv1.3

Cipher

TLS_AES_256_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

140.115.0.251

970,98 ms

Cloudflare

1.1.1.1

140.115.0.251

1.135,11 ms

Quad9

9.9.9.9

140.115.0.251

26,13 ms

OpenDNS

208.67.222.222

140.115.0.251

1.394,46 ms

AdGuard

94.140.14.14

140.115.0.251

1.691,93 ms

IP, geolocation and ASNAssociated network information

140.115.0.251

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

mx3.cc.ncu.edu.tw

Port 25: Closed/unreachable - 178.2 ms - 
Port 465: Closed/unreachable - 4021 ms - 
Port 587: Closed/unreachable - 4210.7 ms -

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