StatsMyWeb

Domain report

fastool.io

fastool.io ranks in the top 6.85% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 7 distinct hosts observed under it.

Explore fastool.io in the Web Graph

Connectivity

#9,127,516harmonic-centrality rank
Top percentile
6.85%
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://fastool.io/ answered with HTTP 200.

Certificate until 2026-12-15C=US, O=Google Trust Services, CN=WE1

DNS records

A
  • 172.67.167.15
  • 104.21.65.208
AAAA
  • 2606:4700:3037::6815:41d0
  • 2606:4700:3032::ac43:a70f
MX
  • 14 route2.mx.cloudflare.net.
  • 33 route1.mx.cloudflare.net.
  • 67 route3.mx.cloudflare.net.
NS
  • kayden.ns.cloudflare.com.
  • lucy.ns.cloudflare.com.
AS
Server in network CLOUDFLARENET, AS13335 · United States172.67.167.0/24, which holds 172.67.167.15

Live preview

Screenshot of fastool.io

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

Since fastool.io 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)

No RDAP (WHOIS) data is available for fastool.io.

How to read WHOIS and RDAP data

SSL certificate

Common name
fastool.io
Issuer
C=US, O=Google Trust Services, CN=WE1
Valid from
2026-09-16
Valid until
2026-12-15

Matches fastool.io exactly. Source: Certificate Transparency logs (crt.sh).

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, s-maxage=86400, stale-while-revalidate=604800
Content-Encoding
Not sent

Security

Content-Security-Policy
Not sent
Strict-Transport-Security
max-age=63072000
X-Frame-Options
DENY
X-Content-Type-Options
nosniff
Referrer-Policy
strict-origin-when-cross-origin
Permissions-Policy
camera=(), microphone=(), geolocation=()

What each security header does

Redirect chain

  1. 1.http://fastool.io/HTTP 308

    → https://fastool.io/

  2. 2.https://fastool.io/HTTP 307

    → https://www.fastool.io/

  3. 3.https://www.fastool.io/HTTP 307

    → https://www.fastool.io/en

  4. 4.https://www.fastool.io/enHTTP 200

Meta tags

Title
Free Astronomy Calculators for Stargazing & Astrophotography
Description
Free in-browser astronomy tools for stargazing & astrophotography: sunrise, golden hour, moon phases, twilight, telescope FOV and sidereal time. No signup.
Canonical
https://www.fastool.io/en
Robots
Not set
Generator
Not set
Open Graph title
Free Astronomy Calculators for Stargazing & Astrophotography
Open Graph description
Free in-browser astronomy tools for stargazing & astrophotography: sunrise, golden hour, moon phases, twilight, telescope FOV and sidereal time. No signup.
Open Graph image
https://www.fastool.io/og/hub.png
Open Graph type
website
Twitter card
summary_large_image
Twitter title
Free Astronomy Calculators for Stargazing & Astrophotography
Twitter image
https://www.fastool.io/og/hub.png

robots.txt

Disallow rules (User-agent: *)
2
Disallow rules (other agents)
0

Sitemap declared:

  • https://www.fastool.io/sitemap.xml

Technology detected

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

  • Cloudflarecdn

    Server: cloudflare

  • Next.jsframework

    Found "_next/static/" in the page's HTML

Similar connectivity

Domains ranked just above and below it in the same snapshot.