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Domain report

nerdy.dev

nerdy.dev ranks in the top 0.33% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 2 distinct hosts observed under it.

Explore nerdy.dev in the Web Graph

Connectivity

#444,952harmonic-centrality rank
Top percentile
0.33%
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://nerdy.dev/ answered with HTTP 200.

DNS records

A
  • 69.67.170.170
AAAA
  • 2602:f70f::1
MX
  • 5 alt2.aspmx.l.google.com.
  • 1 aspmx.l.google.com.
  • 10 alt4.aspmx.l.google.com.
  • 10 alt3.aspmx.l.google.com.
  • 5 alt1.aspmx.l.google.com.
NS
  • ns-cloud-b4.googledomains.com.
  • ns-cloud-b1.googledomains.com.
  • ns-cloud-b2.googledomains.com.
  • ns-cloud-b3.googledomains.com.
AS
Server in network DENO, AS15329 · United States69.67.170.0/24, which holds 69.67.170.170

Live preview

Screenshot of nerdy.dev

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

Since nerdy.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)

Registrar
Squarespace Domains II LLC.
Registered
2019-03-01
Expires
2027-03-01
Last changed
2026-02-19

Nameservers: ns-cloud-b1.googledomains.com, ns-cloud-b2.googledomains.com, ns-cloud-b3.googledomains.com, ns-cloud-b4.googledomains.com

Status: client delete prohibited, client transfer prohibited

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
DENY
X-Content-Type-Options
nosniff
Referrer-Policy
strict-origin-when-cross-origin
Permissions-Policy
Not sent

What each security header does

Redirect chain

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

    → https://nerdy.dev/

  2. 2.https://nerdy.dev/HTTP 200

Meta tags

Title
Adam Argyle
Description
Website for Adam Argyle: Teacher, Speaker, CSSWG member, and creator of Open Props and VisBug.
Canonical
https://nerdy.dev/
Robots
Not set
Generator
Not set
Open Graph title
Adam Argyle
Open Graph description
Website for Adam Argyle: Teacher, Speaker, CSSWG member, and creator of Open Props and VisBug.
Open Graph image
https://nerdy.dev/media/skull-card.png
Open Graph type
article
Twitter card
summary_large_image
Twitter title
Adam Argyle
Twitter image
https://nerdy.dev//media/skull-card.png

robots.txt

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

Sitemap declared:

  • https://nerdy.dev/sitemap.xml

Technology detected

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

  • Cloudflarecdn

    Server: cloudflare

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