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Domain report

duetreader.com

duetreader.com ranks in the top 0.25% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 2 distinct hosts observed under it.

Explore duetreader.com in the Web Graph

Connectivity

#334,934harmonic-centrality rank
Top percentile
0.25%
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://duetreader.com/ answered with HTTP 200.

DNS records

A
  • 172.67.157.206
  • 104.21.8.186
AAAA
  • 2606:4700:3031::6815:8ba
  • 2606:4700:3034::ac43:9dce
MX
  • 21 route2.mx.cloudflare.net.
  • 6 route3.mx.cloudflare.net.
  • 81 route1.mx.cloudflare.net.
NS
  • desi.ns.cloudflare.com.
  • grant.ns.cloudflare.com.

Live preview

Screenshot of duetreader.com

This site's Content-Security-Policy restricts embedding to specific origins ("frame-ancestors 'none'"), which does not include StatsMyWeb.

Since duetreader.com 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
public, max-age=0
Content-Encoding
Not sent

Security

Content-Security-Policy
default-src 'self';script-src 'self' 'unsafe-eval' 'unsafe-inline' https://www.googletagmanager.com;script-src-attr 'self' 'unsafe-inline';style-src 'self' 'unsafe-inline';font-src 'self';img-src 'self' https: data: blob:;form-action 'self' https://checkout.stripe.com https://billing.stripe.com;connect-src 'self' https://static.duetreader.com https://www.google-analytics.com https://www.googletagmanager.com https://play.google.com https://t3.gstatic.com;object-src 'none';frame-ancestors 'none';base-uri 'self';upgrade-insecure-requests
Strict-Transport-Security
max-age=31536000; includeSubDomains
X-Frame-Options
Not sent
X-Content-Type-Options
nosniff
Referrer-Policy
no-referrer
Permissions-Policy
Not sent

What each security header does

Redirect chain

  1. 1.http://duetreader.com/HTTP 301

    → https://www.duetreader.com/

  2. 2.https://www.duetreader.com/HTTP 200

Meta tags

Title
DuetReader
Description
Book reader with translator, flash-cards and user dictionary
Canonical
Not set
Robots
Not set
Generator
1.1.3
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: *)
0
Disallow rules (other agents)
31

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.