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Domain report

cobalt.dev

cobalt.dev ranks in the top 0.087% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 2 distinct hosts observed under it.

Explore cobalt.dev in the Web Graph

Connectivity

#115,754harmonic-centrality rank
Top percentile
0.087%
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://cobalt.dev/ answered with HTTP 200.

DNS records

A
  • 216.239.34.21
  • 216.239.32.21
  • 216.239.38.21
  • 216.239.36.21
AAAA
  • 2001:4860:4802:34::15
  • 2001:4860:4802:32::15
  • 2001:4860:4802:36::15
  • 2001:4860:4802:38::15
MX
No records found.
NS
  • ns2.googledomains.com.
  • ns4.googledomains.com.
  • ns3.googledomains.com.
  • ns1.googledomains.com.

Live preview

Screenshot of cobalt.dev

This site's Content-Security-Policy restricts embedding to specific origins ("frame-ancestors 'self' https://codeassist.google.com https://code-assist-free-tier.corp.google.com"), which does not include StatsMyWeb.

Since cobalt.dev 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
no-cache, must-revalidate
Content-Encoding
Not sent

Security

Content-Security-Policy
base-uri 'self'; object-src 'none'; script-src 'strict-dynamic' 'unsafe-inline' https: http: 'nonce-yB1ZyvrM+VH8oh0loR8Nky42rAYQci' 'unsafe-eval'; frame-ancestors 'self' https://codeassist.google.com https://code-assist-free-tier.corp.google.com; report-uri https://csp.withgoogle.com/csp/devsite/v2
Strict-Transport-Security
max-age=63072000; includeSubdomains; preload
X-Frame-Options
Not sent
X-Content-Type-Options
nosniff
Referrer-Policy
Not sent
Permissions-Policy
Not sent

What each security header does

Redirect chain

  1. 1.http://cobalt.dev/HTTP 301

    → https://developers.google.com/youtube/cobalt

  2. 2.https://developers.google.com/youtube/cobaltHTTP 200

Meta tags

Title
Cobalt  |  Google for Developers
Description
Support YouTube HTML5 applications on Living Room devices.
Canonical
https://developers.google.com/youtube/cobalt
Robots
Not set
Generator
Not set
Open Graph title
Cobalt  |  Google for Developers
Open Graph description
Support YouTube HTML5 applications on Living Room devices.
Open Graph image
https://www.gstatic.com/devrel-devsite/prod/v9ce9cb5b22b62a465ff52c45061a0a6a2d86a80b685e9aa8a182b203fdfbf420/developers/images/opengraph/indigo.png
Open Graph type
website
Twitter card
summary_large_image
Twitter title
Not set
Twitter image
Not set

robots.txt

cobalt.dev has no robots.txt.

Technology detected

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

  • Cloudflarecdn

    Server: cloudflare

  • Google Analyticsanalytics

    Found "www.google-analytics.com" in the page's HTML

Related domains

Similar connectivity

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