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Domain report

doubletickr.com

doubletickr.com ranks in the top 0.22% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 1 distinct host observed under it.

Explore doubletickr.com in the Web Graph

Connectivity

#298,670harmonic-centrality rank
Top percentile
0.22%
Hosts observed
1

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://doubletickr.com/ answered with HTTP 200.

DNS records

A
  • 172.67.208.231
  • 104.21.77.139
AAAA
  • 2606:4700:3034::ac43:d0e7
  • 2606:4700:3037::6815:4d8b
MX
  • 29 route1.mx.cloudflare.net.
  • 35 route3.mx.cloudflare.net.
  • 89 route2.mx.cloudflare.net.
NS
  • amos.ns.cloudflare.com.
  • harleigh.ns.cloudflare.com.

Live preview

This is a live, sandboxed embed of doubletickr.com — 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
public, max-age=0, must-revalidate
Content-Encoding
Not sent

Security

Content-Security-Policy
Not sent
Strict-Transport-Security
Not sent
X-Frame-Options
Not sent
X-Content-Type-Options
nosniff
Referrer-Policy
strict-origin-when-cross-origin
Permissions-Policy
Not sent

What each security header does

Redirect chain

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

    → https://doubletickr.com/

  2. 2.https://doubletickr.com/HTTP 200

Meta tags

Title
DoubleTick — Email Tracker for Gmail, No Signature
Description
See when your emails are read — WhatsApp-style ✓✓ checkmarks right in Gmail. No “Sent with…” footer, no shaming links. Free Chrome extension.
Canonical
https://doubletickr.com/
Robots
index, follow
Generator
Not set
Open Graph title
DoubleTick — Email Tracker for Gmail, No Signature
Open Graph description
See when your emails are read — WhatsApp-style ✓✓ checkmarks right in Gmail. No “Sent with…” footer, no shaming links. Free.
Open Graph image
Not set
Open Graph type
website
Twitter card
summary_large_image
Twitter title
DoubleTick — Email Tracker for Gmail, No Signature
Twitter image
Not set

robots.txt

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

Sitemap declared:

  • https://doubletickr.com/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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