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Domain report

java-course.ru

java-course.ru ranks in the top 0.50% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 2 distinct hosts observed under it.

Explore java-course.ru in the Web Graph

Connectivity

#672,752harmonic-centrality rank
Top percentile
0.50%
Hosts observed
2

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://java-course.ru/ answered with HTTP 200.

DNS records

A
  • 37.230.118.213
AAAA
No records found.
MX
  • 0 java-course.ru.
NS
  • ns3.multihost.ru.
  • ns1.multihost.ru.
  • ns2.multihost.ru.

Live preview

This is a live, sandboxed embed of java-course.ru — not a copy. What it shows can change any time the site itself does.

Domain registration (WHOIS / RDAP)

No RDAP (WHOIS) data is available for java-course.ru.

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

Security

Content-Security-Policy
Not sent
Strict-Transport-Security
Not sent
X-Frame-Options
Not sent
X-Content-Type-Options
Not sent
Referrer-Policy
Not sent
Permissions-Policy
Not sent

What each security header does

Redirect chain

  1. 1.http://java-course.ru/HTTP 200

Meta tags

Title
Java Course
Description
Canonical
https://java-course.ru/
Robots
max-image-preview:large
Generator
WordPress 6.2.14
Open Graph title
Not set
Open Graph description
Not set
Open Graph image
Not set
Open Graph type
Not set
Twitter card
Not set
Twitter title
Not set
Twitter image
Not set

robots.txt

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

Sitemap declared:

  • https://java-course.ru/wp-sitemap.xml

Technology detected

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

  • Cloudflarecdn

    Server: cloudflare

  • WordPresscms

    <meta name="generator"> = "WordPress 6.2.14"

  • PHPother

    Cookie set: PHPSESSID

Related domains

Similar connectivity

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