Domain report
dev.java
dev.java ranks in the top 0.30% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 2 distinct hosts observed under it.
Connectivity
#403,676harmonic-centrality rank
- Top percentile
- 0.30%
- 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://dev.java/ answered with HTTP 200.
DNS records
- A
- 185.199.109.153
- 185.199.110.153
- 185.199.111.153
- 185.199.108.153
- AAAA
- 2606:50c0:8003::153
- 2606:50c0:8000::153
- 2606:50c0:8001::153
- 2606:50c0:8002::153
- MX
- No records found.
- NS
- ns2.p201.dns.oraclecloud.net.
- ns3.p201.dns.oraclecloud.net.
- ns4.p201.dns.oraclecloud.net.
- ns1.p201.dns.oraclecloud.net.
Live preview
This is a live, sandboxed embed of dev.java — not a copy. What it shows can change any time the site itself does.
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
- max-age=600
- 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
Redirect chain
- 1.
http://dev.java/HTTP 301→ https://dev.java/
- 2.
https://dev.java/HTTP 200
Meta tags
- Title
- Dev.java: The Destination for Java Developers
- Description
- Not set
- Canonical
- Not set
- Robots
- index,follow
- Generator
- Not set
- Open Graph title
- Dev.java: The Destination for Java Developers
- Open Graph description
- Not set
- Open Graph image
- https://dev.java/assets/images/java-logo-vert-blk.png
- Open Graph type
- article
- Twitter card
- summary
- Twitter title
- Dev.java: The Destination for Java Developers
- Twitter image
- Not set
robots.txt
- Disallow rules (User-agent: *)
- 0
- 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.