Domain report
macfound.org
macfound.org ranks in the top 0.0085% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 18 distinct hosts observed under it.
Connectivity
- Top percentile
- 0.0085%
- Hosts observed
- 18
From the Common Crawl cc-main-2026-jul-aug-sep hyperlink graph, 133,241,980 domains total. What this rank means
HTTPS reachability
https://macfound.org/ answered with HTTP 200.
DNS records
- A
- 172.66.134.198
- 172.66.137.212
- AAAA
- 2606:4700:10::ac42:89d4
- 2606:4700:10::ac42:86c6
- MX
- 0 macfound-org.mail.protection.outlook.com.
- NS
- jessica.ns.cloudflare.com.
- lakas.ns.cloudflare.com.
Live preview
This is a live, sandboxed embed of macfound.org — not a copy. What it shows can change any time the site itself does.
Domain registration (WHOIS / RDAP)
RDAP lookup failed (HTTP 429).
SSL certificate
Certificate Transparency lookup failed (HTTP 429).
HTTP & security headers
Response
- Server
- cloudflare
- Content-Type
- text/html; charset=utf-8
- Cache-Control
- private,public, max-age=300, no-cache="set-cookie"
- 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
Redirect chain
- 1.
http://macfound.org/HTTP 301→ https://www.macfound.org/
- 2.
https://www.macfound.org/HTTP 200
Meta tags
- Title
- MacArthur Foundation - MacArthur Foundation
- Description
- The MacArthur Foundation supports creative people and effective institutions committed to building a more just, verdant, and peaceful world. In addition to selecting the MacArthur Fellows, we work to defend human rights, advance global conservation and security, make cities better places, and understand how technology is affecting children and society.
- Canonical
- Not set
- Robots
- index, follow
- Generator
- Not set
- Open Graph title
- Not set
- Open Graph description
- Not set
- Open Graph image
- Not set
- Open Graph type
- Not set
- Twitter card
- Not set
- Twitter title
- Not set
- Twitter image
- Not set
robots.txt
- Disallow rules (User-agent: *)
- 5
- Disallow rules (other agents)
- 0
No Sitemap declared in robots.txt.
Technology detected
Best-effort, based on a small set of well-known signals — this may be incomplete.
- Cloudflarecdn
Server: cloudflare
- Google Tag Manageranalytics
Found "googletagmanager.com/gtm.js" in the page's HTML
Related domains
Similar connectivity
Domains ranked just above and below it in the same snapshot.