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Domain report

devpsy.org

devpsy.org ranks in the top 0.57% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 2 distinct hosts observed under it.

Explore devpsy.org in the Web Graph

Connectivity

#757,056harmonic-centrality rank
Top percentile
0.57%
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://devpsy.org/ answered with HTTP 200.

DNS records

A
  • 185.181.254.171
AAAA
No records found.
MX
  • 0 s13507.usc1.stableserver.net.
NS
  • ns2.c16.tmdcloud.com.
  • ns1.c16.tmdcloud.com.
AS
Server in network WHG-DAL, AS36454 · United Kingdom185.181.254.0/24, which holds 185.181.254.171

Live preview

Screenshot of devpsy.org

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

Since devpsy.org 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
Not sent
Content-Encoding
Not sent

Security

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

What each security header does

Redirect chain

  1. 1.http://devpsy.org/HTTP 301

    → https://copernicanrevolution.org/

  2. 2.https://copernicanrevolution.org/HTTP 200

Meta tags

Title
Copernican Revolution
Description
A psychology professor's collection of lessons fostering self-discovery through online activities, hands-on classroom experiences, engaging lectures, and effective discussion prompts.
Canonical
https://copernicanrevolution.org
Robots
Not set
Generator
Not set
Open Graph title
Copernican Revolution
Open Graph description
A psychology professor's collection of lessons fostering self-discovery through online activities, hands-on classroom experiences, engaging lectures, and effective discussion prompts.
Open Graph image
https://static.tildacdn.net/tild6166-6439-4539-b665-303137626338/katie_grobman_atop_i.jpg
Open Graph type
website
Twitter card
Not set
Twitter title
Not set
Twitter image
Not set

robots.txt

Disallow rules (User-agent: *)
0
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

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