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Domain report

placeholders.dev

placeholders.dev ranks in the top 0.32% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 2 distinct hosts observed under it.

Explore placeholders.dev in the Web Graph

Connectivity

#421,646harmonic-centrality rank
Top percentile
0.32%
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://placeholders.dev/ answered with HTTP 200.

DNS records

A
  • 104.18.20.121
  • 104.18.21.121
AAAA
  • 2606:4700::6812:1479
  • 2606:4700::6812:1579
MX
No records found.
NS
  • blue.foundationdns.com.
  • blue.foundationdns.net.
  • blue.foundationdns.org.

Live preview

Screenshot of placeholders.dev

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

Since placeholders.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
Cache-Control
public, max-age=3600
Content-Encoding
Not sent

Security

Content-Security-Policy
default-src 'self'; script-src 'self' cdnjs.cloudflare.com static.cloudflareinsights.com; style-src 'self' cdnjs.cloudflare.com 'unsafe-inline' fonts.googleapis.com; img-src 'self' data: images.placeholders.dev; child-src 'none'; font-src 'self' fonts.gstatic.com cdnjs.cloudflare.com; connect-src 'self'; prefetch-src 'none'; object-src 'none'; form-action 'none'; frame-ancestors 'none'; upgrade-insecure-requests;
Strict-Transport-Security
max-age=31536000; includeSubDomains; preload
X-Frame-Options
DENY
X-Content-Type-Options
nosniff
Referrer-Policy
no-referrer-when-downgrade
Permissions-Policy
Not sent

What each security header does

Redirect chain

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

    → https://placeholders.dev/

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

Meta tags

Title
Generate super fast placeholder images powered by Cloudflare Workers in 333+ edge locations.
Description
Generate super fast placeholder images powered by Cloudflare Workers in 333+ edge locations.
Canonical
Not set
Robots
Not set
Generator
Not set
Open Graph title
placeholders.dev
Open Graph description
Generate super fast placeholder images powered by Cloudflare Workers in 333+ edge locations.
Open Graph image
https://placeholders.dev/share.png
Open Graph type
website
Twitter card
summary_large_image
Twitter title
placeholders.dev
Twitter image
https://placeholders.dev/share.png

robots.txt

placeholders.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

Related domains

Similar connectivity

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