What technology does whois.co.kr use?

whois.co.kr is built with PHP, Apache.

Is whois.co.kr secure (HTTPS)?

Yes. whois.co.kr uses TLS 1.2 with a certificate issued by Sectigo Limited, valid until Apr 3, 2027.

Who hosts whois.co.kr?

Hosting provider information for whois.co.kr is not available yet.

What is whois.co.kr's SEO score?

whois.co.kr scored 35/100 for SEO in the latest analysis (poor).

What is whois.co.kr's overall website score?

whois.co.kr has an overall SiteGraph score of 64/100, combining SEO, performance, security, and accessibility.

Has whois.co.kr's score changed over time?

whois.co.kr's overall score has declined by 2 points (from 66 to 64) since Jul 25, 2026.

whois.co.kr

Last scanned Aug 1, 2026, 5:00 AM · 11 views

Overall score

Fair

Summary

This website uses Apache. SEO is poor (35/100) and accessibility is good (75/100). Security scores fair (65/100) and performance excellent (90/100). Top issue: Missing <title>.

Top issues to fix

15 issues found · 6 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 title tag
SEO
Add a unique, descriptive <title> tag — it's the single most important on-page SEO element.
Missing meta description
SEO
Add a ~150-character meta description to control your search-result snippet and lift click-through rate.
No H1 heading found
SEO
Add exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
Missing viewport meta tag
Accessibility
Add <meta name="viewport" content="width=device-width, initial-scale=1"> — without it the site is broken on mobile.

+9 more issues — details in the sections below.

SEO

8 issue(s) found

Performance

1.52 s

Security

HTTPS & header checks

Accessibility

3 issue(s) found

Score history

-2 overall since Jul 25, 2026

Overall: 64
SEO: 35
Security: 65
Performance: 90
Accessibility: 75

Technologies

Detected frameworks, languages, and tools.

PHP Apache

Hosting & CDN

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

DNS records

Type	Value
A	—
AAAA	—
MX	—
TXT	—
NS	—
CAA	—
CNAME	—
IPv6 support	No

TLS / SSL certificate

Version: TLS 1.2
Issuer: Sectigo Limited
Subject: *.whois.co.kr
Valid from: Mar 4, 2026
Valid to: Apr 3, 2027
Days until expiry: 245
SAN domains: *.whois.co.kr, whois.co.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 0 · H2 0 · H3 0

Links

0 internal · 0 external · 0 broken

Images

0 total · 0 missing alt

Scripts / Styles

0 scripts · 0 stylesheets

JS / CSS size

0 B · 0 B

Page size

0 B

Robots.txt & Sitemap

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

SEO issues

Missing <title>
Missing meta description
Missing canonical link
No H1 heading found
No structured data (JSON-LD) found
Missing OpenGraph tags
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://whois.co.kr
Final URL: https://member.whois.co.kr/sso/?tpf=check_login&agent_auth_key=98017d73e2c97fb59aa4e892a3bb08b9&current_url=https%3A%2F%2Fwhois.co.kr
HTTP status: 302
HTTP version: HTTP/1.1
Response time: 1.52 s
HTML size: 0 B
Redirect chain: https://whois.co.kr → https://member.whois.co.kr/sso/?tpf=check_login&agent_auth_key=98017d73e2c97fb59aa4e892a3bb08b9&current_url=https%3A%2F%2Fwhois.co.kr → https://whois.co.kr/sso/agent_check_login.php → https://whois.co.kr → https://member.whois.co.kr/sso/?tpf=check_login&agent_auth_key=98017d73e2c97fb59aa4e892a3bb08b9&current_url=https%3A%2F%2Fwhois.co.kr → https://whois.co.kr/sso/agent_check_login.php

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