StatsMyWeb

Domain report

classroutine.kr

classroutine.kr ranks in the top 0.23% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 3 distinct hosts observed under it.

Explore classroutine.kr in the Web Graph

Connectivity

#310,753harmonic-centrality rank
Top percentile
0.23%
Hosts observed
3

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://classroutine.kr/ answered with HTTP 200.

DNS records

A
  • 216.150.1.1
  • 216.150.16.1
AAAA
No records found.
MX
No records found.
NS
  • maeve.ns.cloudflare.com.
  • venkat.ns.cloudflare.com.

Live preview

Screenshot of classroutine.kr

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

Since classroutine.kr 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
public, max-age=0, must-revalidate
Content-Encoding
Not sent

Security

Content-Security-Policy
default-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval' https://accounts.google.com https://apis.google.com https://cdn.channel.io https://cdn.jsdelivr.net https://js.tosspayments.com https://*.tosspayments.com; style-src 'self' 'unsafe-inline' https://accounts.google.com https://cdn.jsdelivr.net https://fonts.googleapis.com https://*.tosspayments.com; font-src 'self' data: https://cdn.jsdelivr.net https://fonts.gstatic.com https://*.tosspayments.com; img-src 'self' data: blob: https:; connect-src 'self' https://accounts.google.com https://www.googleapis.com https://oauth2.googleapis.com https://*.feather-it.com https://api.classroutine.kr https://cdn.channel.io wss://*.channel.io https://*.channel.io https://*.tosspayments.com; frame-src 'self' https://accounts.google.com https://appleid.apple.com https://cdn.channel.io https://*.tosspayments.com https://api.classroutine.kr; frame-ancestors 'self'; base-uri 'self'; form-action 'self' https://appleid.apple.com https://accounts.google.com https://*.tosspayments.com; object-src 'none'; upgrade-insecure-requests
Strict-Transport-Security
max-age=63072000; includeSubDomains; preload
X-Frame-Options
SAMEORIGIN
X-Content-Type-Options
nosniff
Referrer-Policy
strict-origin-when-cross-origin
Permissions-Policy
camera=(), microphone=(), geolocation=()

What each security header does

Redirect chain

  1. 1.http://classroutine.kr/HTTP 308

    → https://classroutine.kr/

  2. 2.https://classroutine.kr/HTTP 307

    → https://www.classroutine.net/

  3. 3.https://www.classroutine.net/HTTP 200

Meta tags

Title
클래스루틴 - 수업부터 시험까지, 클래스루틴 하나로
Description
시간표·급식·AI 학습을 한 번에. 한국 학생을 위한 올인원 학습 앱.
Canonical
https://classroutine.net
Robots
index, follow
Generator
Not set
Open Graph title
클래스루틴 - 수업부터 시험까지, 클래스루틴 하나로
Open Graph description
시간표·급식·AI 학습을 한 번에. 한국 학생을 위한 올인원 학습 앱.
Open Graph image
https://classroutine.net/images/og-image.png
Open Graph type
website
Twitter card
summary_large_image
Twitter title
클래스루틴 - 수업부터 시험까지
Twitter image
https://classroutine.net/images/og-image.png

robots.txt

Disallow rules (User-agent: *)
9
Disallow rules (other agents)
0

Sitemap declared:

  • https://classroutine.net/sitemap.xml

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

Similar connectivity

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