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Domain report

extstack.com

extstack.com ranks in the top 0.25% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 3 distinct hosts observed under it.

Explore extstack.com in the Web Graph

Connectivity

#336,130harmonic-centrality rank
Top percentile
0.25%
Hosts observed
3

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

DNS records

A
  • 104.21.59.132
  • 172.67.177.232
AAAA
  • 2606:4700:3034::ac43:b1e8
  • 2606:4700:3037::6815:3b84
MX
  • 23 route3.mx.cloudflare.net.
  • 24 route1.mx.cloudflare.net.
  • 80 route2.mx.cloudflare.net.
NS
  • chelsea.ns.cloudflare.com.
  • woz.ns.cloudflare.com.

Live preview

Screenshot of extstack.com

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

Since extstack.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, must-revalidate
Content-Encoding
Not sent

Security

Content-Security-Policy
Not sent
Strict-Transport-Security
Not sent
X-Frame-Options
SAMEORIGIN
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://extstack.com/HTTP 301

    → https://extstack.com/

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

Meta tags

Title
ExtStack - Browser Extensions for Productivity
Description
ExtStack offers powerful browser extensions for Instagram, TikTok, Twitter/X and more to boost your productivity and social media growth.
Canonical
https://www.extstack.com/
Robots
index, follow, max-image-preview:large
Generator
Not set
Open Graph title
ExtStack - Browser Extensions for Productivity
Open Graph description
ExtStack offers powerful browser extensions for Instagram, TikTok, Twitter/X and more.
Open Graph image
https://www.extstack.com/images/og-default.png
Open Graph type
website
Twitter card
summary_large_image
Twitter title
ExtStack - Browser Extensions for Productivity
Twitter image
https://www.extstack.com/images/og-default.png

robots.txt

Disallow rules (User-agent: *)
0
Disallow rules (other agents)
36

Sitemap declared:

  • https://www.extstack.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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