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jccoolscience.org

jccoolscience.org ranks in the top 0.18% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 4 distinct hosts observed under it.

Explore jccoolscience.org in the Web Graph

Connectivity

#235,821harmonic-centrality rank
Top percentile
0.18%
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://jccoolscience.org/ answered with HTTP 200.

DNS records

A
  • 172.67.218.135
  • 104.21.94.23
AAAA
  • 2606:4700:3032::6815:5e17
  • 2606:4700:3035::ac43:da87
MX
  • 0 jccoolscience-org.mail.protection.outlook.com.
NS
  • benedict.ns.cloudflare.com.
  • tricia.ns.cloudflare.com.

Live preview

Screenshot of jccoolscience.org

This site sends "X-Frame-Options: SAMEORIGIN", which blocks embedding it here.

Since jccoolscience.org can't be embedded live, this is a captured screenshot instead — a snapshot from whenever it was last rendered, not necessarily this exact moment.

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
no-cache, no-store, must-revalidate
Content-Encoding
Not sent

Security

Content-Security-Policy
Not sent
Strict-Transport-Security
max-age=31536000; includeSubDomains; preload
X-Frame-Options
SAMEORIGIN
X-Content-Type-Options
Not sent
Referrer-Policy
strict-origin-when-cross-origin
Permissions-Policy
Not sent

What each security header does

Redirect chain

  1. 1.http://jccoolscience.org/HTTP 301

    → https://jccoolscience.org/

  2. 2.https://jccoolscience.org/HTTP 301

    → https://www.jccoolscience.org/

  3. 3.https://www.jccoolscience.org/HTTP 302

    → https://www.jccoolscience.org/zh-HK/

  4. 4.https://www.jccoolscience.org/zh-HK/HTTP 200

Meta tags

Title
賽馬會探索科學
Description
香港賽馬會慈善信託基金策劃及捐助的「賽馬會探索科學」計劃致力培育新一代面向未來的必備能力與自主學習精神，以應對全球挑戰並推動創新。
Canonical
https://www.jccoolscience.org/
Robots
Not set
Generator
Not set
Open Graph title
賽馬會探索科學
Open Graph description
香港賽馬會慈善信託基金策劃及捐助的「賽馬會探索科學」計劃致力培育新一代面向未來的必備能力與自主學習精神，以應對全球挑戰並推動創新。
Open Graph image
https://www.jccoolscience.org/Image/download.aspx?Entity=cre59_seo_meta&Attribute=cre59_image_zhhk&Id=742ec2b7-4f77-f011-95f2-6045bd1bc643&Timestamp=638955973586636716&full=true
Open Graph type
website
Twitter card
Not set
Twitter title
Not set
Twitter image
Not set

robots.txt

jccoolscience.org has no robots.txt.

Technology detected

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

  • Cloudflarecdn

    Server: cloudflare

  • Google Analyticsanalytics

    Found "googletagmanager.com/gtag/js" in the page's HTML

Related domains

Similar connectivity

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