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Domain report

kosuke.ai

kosuke.ai ranks in the top 0.21% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 2 distinct hosts observed under it.

Explore kosuke.ai in the Web Graph

Connectivity

#280,088harmonic-centrality rank
Top percentile
0.21%
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://kosuke.ai/ answered with HTTP 200.

Certificate until 2027-01-03C=US, O=SSL Corporation, CN=Cloudflare TLS Issuing ECC CA 4

DNS records

A
  • 104.21.82.183
  • 172.67.161.114
AAAA
  • 2606:4700:3031::ac43:a172
  • 2606:4700:3034::6815:52b7
MX
  • 1 aspmx.l.google.com.
  • 10 alt3.aspmx.l.google.com.
  • 10 alt4.aspmx.l.google.com.
  • 5 alt1.aspmx.l.google.com.
  • 5 alt2.aspmx.l.google.com.
NS
  • elaine.ns.cloudflare.com.
  • jason.ns.cloudflare.com.
AS
Server in network CLOUDFLARENET, AS13335 · United States104.21.82.0/24, which holds 104.21.82.183

Live preview

This is a live, sandboxed embed of kosuke.ai — not a copy. What it shows can change any time the site itself does.

Domain registration (WHOIS / RDAP)

Registrar
Cloudflare, Inc
Registered
2025-03-19
Expires
2029-03-19
Last changed
2026-08-12

Nameservers: jason.ns.cloudflare.com, elaine.ns.cloudflare.com

Status: client transfer prohibited

How to read WHOIS and RDAP data

SSL certificate

Common name
kosuke.ai
Issuer
C=US, O=SSL Corporation, CN=Cloudflare TLS Issuing ECC CA 4
Valid from
2026-10-05
Valid until
2027-01-03

Matches kosuke.ai 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
s-maxage=31536000
Content-Encoding
Not sent

Security

Content-Security-Policy
Not sent
Strict-Transport-Security
Not sent
X-Frame-Options
Not sent
X-Content-Type-Options
Not sent
Referrer-Policy
Not sent
Permissions-Policy
Not sent

What each security header does

Redirect chain

  1. 1.http://kosuke.ai/HTTP 301

    → https://kosuke.ai/

  2. 2.https://kosuke.ai/HTTP 200

Meta tags

Title
Enabling Artifacts Driven Development, with a Sensei | Kosuke
Description
Kosuke brings every change back as artifacts you judge in seconds: a prototype, a recording, a verdict. Sensei brings them to you one at a time, from any agent.
Canonical
https://kosuke.ai
Robots
index, follow
Generator
Not set
Open Graph title
Enabling Artifacts Driven Development, with a Sensei | Kosuke
Open Graph description
Kosuke brings every change back as artifacts you judge in seconds: a prototype, a recording, a verdict. Sensei brings them to you one at a time, from any agent.
Open Graph image
https://kosuke.ai/opengraph-image.png?v=2
Open Graph type
website
Twitter card
summary_large_image
Twitter title
Enabling Artifacts Driven Development, with a Sensei | Kosuke
Twitter image
https://kosuke.ai/opengraph-image.png?v=2

robots.txt

Disallow rules (User-agent: *)
4
Disallow rules (other agents)
0

Sitemap declared:

  • https://kosuke.ai/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

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