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Domain report

fbreader.org

fbreader.org ranks in the top 0.019% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 7 distinct hosts observed under it.

Explore fbreader.org in the Web Graph

Connectivity

#24,961harmonic-centrality rank
Top percentile
0.019%
Hosts observed
7

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

DNS records

A
  • 178.79.155.99
AAAA
  • 2a01:7e00::f03c:91ff:fe69:e518
MX
  • 10 mx.zoho.com.
  • 50 mx3.zoho.com.
  • 20 mx2.zoho.com.
NS
  • ns1.linode.com.
  • ns5.linode.com.
  • ns2.linode.com.
  • ns3.linode.com.
  • ns4.linode.com.

Live preview

Screenshot of fbreader.org

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

Since fbreader.org 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
Not sent
Content-Encoding
Not sent

Security

Content-Security-Policy
Not sent
Strict-Transport-Security
max-age=31536000; includeSubDomains
X-Frame-Options
DENY
X-Content-Type-Options
nosniff
Referrer-Policy
same-origin
Permissions-Policy
Not sent

What each security header does

Redirect chain

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

    → https://fbreader.org/

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

Meta tags

Title
Favourite Book Reader – FBReader
Description
An ePub reader supporting Readium LCP DRM. Also opens fb2 and other formats. Free, fast, configurable. Network book sources, custom OPDS, cloud sync.
Canonical
https://fbreader.org/en
Robots
Not set
Generator
Not set
Open Graph title
Favourite Book Reader – FBReader
Open Graph description
Not set
Open Graph image
https://fbreader.org/static/images/1200x630.jpeg
Open Graph type
website
Twitter card
Not set
Twitter title
Not set
Twitter image
Not set

robots.txt

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

Sitemaps declared:

  • https://fbreader.org/sitemap.xml
  • https://fbreader.org/sitemap.xml

Technology detected

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

  • Cloudflarecdn

    Server: cloudflare

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