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Domain report

jkcore.com

jkcore.com ranks in the top 0.23% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 4 distinct hosts observed under it.

Explore jkcore.com in the Web Graph

Connectivity

#300,929harmonic-centrality rank
Top percentile
0.23%
Hosts observed
4

From the Common Crawl cc-main-2026-jul-aug-sep hyperlink graph, 133,241,980 domains total. What this rank means

HTTPS reachability

200HTTP status

https://jkcore.com/ answered with HTTP 200.

DNS records

A
  • 216.198.79.1
AAAA
No records found.
MX
  • 10 mx01.mailplug.com.
  • 20 mx02.mailplug.com.
NS
  • ara.ns.cloudflare.com.
  • miles.ns.cloudflare.com.

Live preview

This is a live, sandboxed embed of jkcore.com — not a copy. What it shows can change any time the site itself does.

Domain registration (WHOIS / RDAP)

RDAP lookup failed (HTTP 429).

How to read WHOIS and RDAP data

SSL certificate

Certificate Transparency lookup failed (HTTP 429).

How to check when a certificate expires

HTTP & security headers

Response

Server
cloudflare
Content-Type
text/html; charset=utf-8
Cache-Control
public, max-age=0, must-revalidate
Content-Encoding
Not sent

Security

Content-Security-Policy
Not sent
Strict-Transport-Security
max-age=63072000
X-Frame-Options
Not sent
X-Content-Type-Options
Not sent
Referrer-Policy
Not sent
Permissions-Policy
Not sent

What each security header does

Redirect chain

  1. 1.http://jkcore.com/HTTP 308

    → https://jkcore.com/

  2. 2.https://jkcore.com/HTTP 200

Meta tags

Title
(주)제이케이코어 - JKCORE
Description
재생에너지 혁신을 선도하는 기업 제이케이코어, 에너지 효율 최적화로 지속 가능한 미래를 만들어갑니다.
Canonical
Not set
Robots
index, follow
Generator
Not set
Open Graph title
(주)제이케이코어 - JKCORE
Open Graph description
재생에너지 혁신을 선도하는 기업 제이케이코어, 에너지 효율 최적화로 지속 가능한 미래를 만들어갑니다.
Open Graph image
https://www.jkcore.com/image/openGraph.png
Open Graph type
Not set
Twitter card
summary_large_image
Twitter title
(주)제이케이코어 - JKCORE
Twitter image
https://www.jkcore.com/image/openGraph.png

robots.txt

jkcore.com has no robots.txt.

Technology detected

Best-effort, based on a small set of well-known signals — this may be incomplete.

  • Cloudflarecdn

    Server: cloudflare

  • Next.jsframework

    Found "_next/static/" in the page's HTML

Related domains

Similar connectivity

Domains ranked just above and below it in the same snapshot.