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.
Connectivity
- 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
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
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).
SSL certificate
Certificate Transparency lookup failed (HTTP 429).
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=()
Redirect chain
- 1.
http://classroutine.kr/HTTP 308→ https://classroutine.kr/
- 2.
https://classroutine.kr/HTTP 307→ https://www.classroutine.net/
- 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
Related domains
Similar connectivity
Domains ranked just above and below it in the same snapshot.