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hackthissite.org

hackthissite.org ranks in the top 0.029% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 11 distinct hosts observed under it.

Explore hackthissite.org in the Web Graph

Connectivity

#38,178harmonic-centrality rank
Top percentile
0.029%
Hosts observed
11

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://hackthissite.org/ answered with HTTP 200.

DNS records

A
  • 137.74.187.103
  • 137.74.187.100
  • 137.74.187.102
  • 137.74.187.101
  • 137.74.187.104
AAAA
No records found.
MX
  • 30 aspmx3.googlemail.com.
  • 10 aspmx.l.google.com.
  • 30 aspmx5.googlemail.com.
  • 30 aspmx4.googlemail.com.
  • 20 alt2.aspmx.l.google.com.
  • 20 alt1.aspmx.l.google.com.
  • 30 aspmx2.googlemail.com.
NS
  • g.ns.buddyns.com.
  • h.ns.buddyns.com.
  • f.ns.buddyns.com.
  • j.ns.buddyns.com.
  • c.ns.buddyns.com.

Live preview

This is a live, sandboxed embed of hackthissite.org — not a copy. What it shows can change any time the site itself does.

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
Cache-Control
no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Content-Encoding
Not sent

Security

Content-Security-Policy
child-src 'self' hackthissite.org *.hackthissite.org htscdn.org *.htscdn.org discord.com; form-action 'self' hackthissite.org *.hackthissite.org htscdn.org *.htscdn.org; upgrade-insecure-requests; report-uri https://hackthissite.report-uri.com/r/d/csp/enforce
Strict-Transport-Security
max-age=31536000; includeSubDomains; preload
X-Frame-Options
Not sent
X-Content-Type-Options
Not sent
Referrer-Policy
origin-when-cross-origin
Permissions-Policy
Not sent

What each security header does

Redirect chain

  1. 1.http://hackthissite.org/HTTP 301

    → https://hackthissite.org/

  2. 2.https://hackthissite.org/HTTP 200

Meta tags

Title
Hack This Site
Description
HackThisSite.org is a free, safe and legal training ground for hackers to test and expand their ethical hacking skills with challenges, CTFs, and more.
Canonical
Not set
Robots
Not set
Generator
Not set
Open Graph title
HackThisSite
Open Graph description
HackThisSite.org is a free, safe and legal training ground for hackers to test and expand their ethical hacking skills with challenges, CTFs, and more.
Open Graph image
https://data.htscdn.org/images/hackthissite-meta-card.png
Open Graph type
website
Twitter card
Not set
Twitter title
Not set
Twitter image
Not set

robots.txt

Disallow rules (User-agent: *)
2
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

Related domains

Similar connectivity

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