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Domain report

classnote.com

classnote.com ranks in the top 0.21% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 2 distinct hosts observed under it.

Explore classnote.com in the Web Graph

Connectivity

#273,327harmonic-centrality rank
Top percentile
0.21%
Hosts observed
2

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://classnote.com/ answered with HTTP 200.

DNS records

A
  • 210.109.81.61
AAAA
No records found.
MX
  • 1 aspmx.l.google.com.
  • 10 alt3.aspmx.google.com.
  • 10 alt4.aspmx.google.com.
  • 5 alt1.aspmx.google.com.
  • 5 alt2.aspmx.google.com.
NS
  • pablo.ns.cloudflare.com.
  • sarah.ns.cloudflare.com.

Live preview

Screenshot of classnote.com

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

Since classnote.com 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
private, no-cache, no-store, max-age=0, must-revalidate
Content-Encoding
Not sent

Security

Content-Security-Policy
frame-ancestors 'none';
Strict-Transport-Security
Not sent
X-Frame-Options
SAMEORIGIN
X-Content-Type-Options
Not sent
Referrer-Policy
Not sent
Permissions-Policy
Not sent

What each security header does

Redirect chain

  1. 1.http://classnote.com/HTTP 302

    → https://www.classnote.com/

  2. 2.https://www.classnote.com/HTTP 200

Meta tags

Title
클래스노트 - 학원 전용 무료 소통 공간
Description
키즈노트가 만든 학원 전용 1:1 커뮤니케이션 플랫폼 클래스노트를 통해 쉽고 편리한 교육기관/가정의 소통을 시작해보세요.
Canonical
https://www.classnote.com/
Robots
index, follow
Generator
Not set
Open Graph title
클래스노트, 학원 전용 무료 소통 공간
Open Graph description
키즈노트가 만든 학원 전용 1:1 소통 공간!
Open Graph image
/assets/imgs/img_og_classnote.png
Open Graph type
website
Twitter card
Not set
Twitter title
Not set
Twitter image
Not set

robots.txt

Disallow rules (User-agent: *)
0
Disallow rules (other agents)
0

No Sitemap declared in 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.