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Domain report

libron.net

libron.net ranks in the top 0.084% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 2 distinct hosts observed under it.

Explore libron.net in the Web Graph

Connectivity

#112,264harmonic-centrality rank
Top percentile
0.084%
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://libron.net/ answered with HTTP 200.

DNS records

A
  • 185.199.110.153
  • 185.199.109.153
  • 185.199.108.153
  • 185.199.111.153
AAAA
  • 2606:50c0:8001::153
  • 2606:50c0:8002::153
  • 2606:50c0:8000::153
  • 2606:50c0:8003::153
MX
  • 1 aspmx.l.google.com.
  • 10 aspmx2.googlemail.com.
  • 10 aspmx3.googlemail.com.
  • 5 alt1.aspmx.l.google.com.
  • 5 alt2.aspmx.l.google.com.
NS
  • ns-115.awsdns-14.com.
  • ns-1346.awsdns-40.org.
  • ns-1990.awsdns-56.co.uk.
  • ns-652.awsdns-17.net.
AS
Server in network FASTLY, AS54113 · United States185.199.110.0/24, which holds 185.199.110.153

Live preview

This is a live, sandboxed embed of libron.net — 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; 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

What each security header does

Redirect chain

  1. 1.http://libron.net/HTTP 301

    → https://libron.net/

  2. 2.https://libron.net/HTTP 200

Meta tags

Title
Libron(リブロン) – 図書館をもっと身近に
Description
Libron(リブロン)は、カーリルAPIを使いAmazonのページから最寄りの図書館(全国7000以上の図書館に対応)の蔵書を検索できる便利なツールです。iPhone版、Firefox Greasemonkey版、Chrome Extension版を配布しています。
Canonical
Not set
Robots
Not set
Generator
Not set
Open Graph title
Not set
Open Graph description
Not set
Open Graph image
./images/logo.png
Open Graph type
Not set
Twitter card
Not set
Twitter title
Not set
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.