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Domain report

hackr.io

hackr.io ranks in the top 0.30% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 6 distinct hosts observed under it.

Explore hackr.io in the Web Graph

Connectivity

#404,007harmonic-centrality rank
Top percentile
0.30%
Hosts observed
6

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

DNS records

A
  • 18.217.125.206
  • 18.227.235.164
AAAA
No records found.
MX
  • 1 aspmx.l.google.com.
  • 10 alt3.aspmx.l.google.com.
  • 10 alt4.aspmx.l.google.com.
  • 5 alt1.aspmx.l.google.com.
  • 5 alt2.aspmx.l.google.com.
NS
  • ns-1340.awsdns-39.org.
  • ns-1661.awsdns-15.co.uk.
  • ns-320.awsdns-40.com.
  • ns-556.awsdns-05.net.

Live preview

Screenshot of hackr.io

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

Since hackr.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)

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, private
Content-Encoding
Not sent

Security

Content-Security-Policy
Not sent
Strict-Transport-Security
max-age=31536000; includeSubDomains, max-age=63072000;
X-Frame-Options
DENY, SAMEORIGIN
X-Content-Type-Options
nosniff, nosniff
Referrer-Policy
strict-origin-when-cross-origin
Permissions-Policy
Not sent

What each security header does

Redirect chain

  1. 1.http://hackr.io/HTTP 200

Meta tags

Title
Hackr.io | Ultimate Tech Learning Hub
Description
Hackr.io – Your Ultimate Tech Learning Hub | Master coding with step-by-step tutorials, AI-powered mentors, and a personal dashboard. Explore expert-led project walkthroughs and tech guides. Practice with online code editors, prep with an AI interviewer, and explore top-rated learning resources. Stay ahead with our blog, YouTube channel, and weekly newsletter.
Canonical
Not set
Robots
follow, index, max-snippet:-1, max-video-preview:-1, max-image-preview:large
Generator
Not set
Open Graph title
Hackr.io | Ultimate Tech Learning Hub
Open Graph description
Hackr.io – Your Ultimate Tech Learning Hub | Master coding with step-by-step tutorials, AI-powered mentors, and a personal dashboard. Explore expert-led project walkthroughs and tech guides. Practice with online code editors, prep with an AI interviewer, and explore top-rated learning resources. Stay ahead with our blog, YouTube channel, and weekly newsletter.
Open Graph image
https://hackr.io/sites/programming/og_image
Open Graph type
website
Twitter card
summary_large_image
Twitter title
Hackr.io | Ultimate Tech Learning Hub
Twitter image
https://hackr.io/assets/images/programming-images/programming-facebook_og.jpg

robots.txt

Disallow rules (User-agent: *)
2
Disallow rules (other agents)
0

Sitemap declared:

  • https://hackr.io/sitemap.xml

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.