What technology does jejunu.ac.kr use?

We did not detect any specific technologies for jejunu.ac.kr in the latest scan.

Is jejunu.ac.kr secure (HTTPS)?

Yes. jejunu.ac.kr uses TLS 1.3 with a certificate issued by Sectigo Limited, valid until Jan 23, 2027.

Who hosts jejunu.ac.kr?

Hosting provider information for jejunu.ac.kr is not available yet.

What is jejunu.ac.kr's SEO score?

jejunu.ac.kr scored 55/100 for SEO in the latest analysis (fair).

What is jejunu.ac.kr's overall website score?

jejunu.ac.kr has an overall SiteGraph score of 66/100, combining SEO, performance, security, and accessibility.

Has jejunu.ac.kr's score changed over time?

jejunu.ac.kr's overall score has improved by 5 points (from 61 to 66) since Jul 26, 2026.

jejunu.ac.kr

제주대학교 인트로

Last scanned Aug 3, 2026, 8:00 PM · 6 views

Overall score

Fair

Summary

SEO is fair (55/100) and accessibility is excellent (90/100). Security scores poor (25/100) and performance excellent (100/100). Top issue: Missing meta description.

Top issues to fix

14 issues found · 3 high priority

Missing Strict-Transport-Security header
Security
Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
Security
Add a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing meta description
SEO
Add a ~150-character meta description to control your search-result snippet and lift click-through rate.
Missing X-Content-Type-Options header
Security
Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
Security
Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
1 cookie without Secure/HttpOnly flags
Security
Set Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.

+8 more issues — details in the sections below.

SEO

7 issue(s) found

100

Performance

673 ms

Security

HTTPS & header checks

Accessibility

1 issue(s) found

Score history

+5 overall since Jul 26, 2026

Overall: 66
SEO: 55
Security: 25
Performance: 100
Accessibility: 90

Technologies

Detected frameworks, languages, and tools.

No technologies detected.

Hosting & CDN

Hosting provider: —
CDN provider: —
IP address: 192.203.138.15
ASN: —

DNS records

Type	Value
A	192.203.138.15
AAAA	—
MX	zmx936.mailplug.com
TXT	MS=6A03173DD553E58249A0A32590338A7F296A922C google-site-verification=Tkkg9wF6D8_q376q8LZfaiJH14xGmmJL4OD21EJWW50 google-site-verification=tTxpz2ae6449KMn5XWZ_96LQu65cU6mH-KMMNAh-JmY v=spf1 mx ip4:192.203.138.18 ip4:203.253.194.31 ip4:203.253.194.22 ip4:192.203.138.13 ip4:192.203.138.22 include:_spf.google.com include:mailplug.com -all
NS	chejuids.cheju.ac.kr cheju.cheju.ac.kr
CAA	0 issue "letsencrypt.org" 0 issue "sectigo.com" 0 issuewild "sectigo.com"
CNAME	—
IPv6 support	No

TLS / SSL certificate

Version: TLS 1.3
Issuer: Sectigo Limited
Subject: *.jejunu.ac.kr
Valid from: Jul 9, 2026
Valid to: Jan 23, 2027
Days until expiry: 173
SAN domains: *.jejunu.ac.kr, jejunu.ac.kr

Security headers

Strict-Transport-SecurityMissing
Content-Security-PolicyMissing
X-Frame-OptionsMissing
X-Content-Type-OptionsMissing
Referrer-PolicyMissing
Permissions-PolicyMissing

Compression: none · 2 cookie(s) observed

Content & assets

Headings

H1 4 · H2 6 · H3 11

Links

5 internal · 7 external · 5 broken

Images

6 total · 0 missing alt

Scripts / Styles

1 scripts · 4 stylesheets

JS / CSS size

0 B · 0 B

Page size

17.5 KB

Robots.txt & Sitemap

robots.txt: Not found
Disallow rules: 0
sitemap.xml: Not found
URLs in sitemap: 0

SEO issues

Missing meta description
Missing canonical link
Multiple H1 headings found
No structured data (JSON-LD) found
Missing OpenGraph tags
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://jejunu.ac.kr
Final URL: https://jejunu.ac.kr
HTTP status: 200
HTTP version: HTTP/1.1
Response time: 673 ms
HTML size: 17.5 KB
Redirect chain: https://jejunu.ac.kr

See something wrong on this report? Request a correction

Frequently asked questions

What technology does jejunu.ac.kr use?: We did not detect any specific technologies for jejunu.ac.kr in the latest scan.
Is jejunu.ac.kr secure (HTTPS)?: Yes. jejunu.ac.kr uses TLS 1.3 with a certificate issued by Sectigo Limited, valid until Jan 23, 2027.
Who hosts jejunu.ac.kr?: Hosting provider information for jejunu.ac.kr is not available yet.
What is jejunu.ac.kr's SEO score?: jejunu.ac.kr scored 55/100 for SEO in the latest analysis (fair).
What is jejunu.ac.kr's overall website score?: jejunu.ac.kr has an overall SiteGraph score of 66/100, combining SEO, performance, security, and accessibility.
Has jejunu.ac.kr's score changed over time?: jejunu.ac.kr's overall score has improved by 5 points (from 61 to 66) since Jul 26, 2026.