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Domain report

codemia.io

codemia.io ranks in the top 0.35% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 1 distinct host observed under it.

Explore codemia.io in the Web Graph

Connectivity

#461,592harmonic-centrality rank
Top percentile
0.35%
Hosts observed
1

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://codemia.io/ answered with HTTP 200.

DNS records

A
  • 172.66.0.96
  • 162.159.140.98
AAAA
  • 2606:4700:7::60
  • 2a06:98c1:58::60
MX
  • 1 smtp.google.com.
NS
  • ns3.digitalocean.com.
  • ns1.digitalocean.com.
  • ns2.digitalocean.com.
AS
Server in network CLOUDFLARENET, AS13335 · United States172.66.0.0/24, which holds 172.66.0.96

Live preview

Screenshot of codemia.io

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

Since codemia.io 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)

No RDAP (WHOIS) data is available for codemia.io.

How to read WHOIS and RDAP data

SSL certificate

Certificate Transparency lookup failed: The operation was aborted due to timeout

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
Not sent
Strict-Transport-Security
Not sent
X-Frame-Options
DENY
X-Content-Type-Options
nosniff
Referrer-Policy
strict-origin-when-cross-origin
Permissions-Policy
camera=(self), microphone=(self), geolocation=()

What each security header does

Redirect chain

  1. 1.http://codemia.io/HTTP 301

    → https://codemia.io/

  2. 2.https://codemia.io/HTTP 200

Meta tags

Title
Codemia | Master System Design Interviews Through Active Practice
Description
Master system design interviews with 120+ practice problems, detailed solutions, and hands-on exercises. Practice with real interview questions from top tech companies.
Canonical
https://codemia.io
Robots
Not set
Generator
Not set
Open Graph title
Codemia | Master System Design Interviews Through Active Practice
Open Graph description
Master system design interviews with 120+ practice problems, detailed solutions, and hands-on exercises.
Open Graph image
https://codemia.io/assets/logo.png
Open Graph type
website
Twitter card
summary_large_image
Twitter title
Codemia | Master System Design Interviews Through Active Practice
Twitter image
https://codemia.io/assets/logo.png

robots.txt

Disallow rules (User-agent: *)
7
Disallow rules (other agents)
0

Sitemaps declared:

  • https://codemia.io/sitemap.xml
  • https://codemia.io/knowledge-hub/sitemap.xml
  • https://codemia.io/blog/sitemap.xml
  • https://codemia.io/system-design/sitemap.xml
  • https://codemia.io/object-oriented-design/sitemap.xml
  • https://codemia.io/ml-system-design/sitemap.xml
  • https://codemia.io/agentic-ai/sitemap.xml
  • https://codemia.io/dsa/sitemap.xml
  • https://codemia.io/practice/sitemap.xml
  • https://codemia.io/guides/sitemap.xml
  • https://codemia.io/courses/sitemap.xml
  • https://codemia.io/community/sitemap.xml

Technology detected

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

  • Cloudflarecdn

    Server: cloudflare

  • Next.jsframework

    X-Powered-By: Next.js

  • Google Analyticsanalytics

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

  • Cloudflare Bot Managementcdn

    Cookie set: __cf_bm

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