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Domain report

formaldehyde.org

formaldehyde.org ranks in the top 0.60% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 2 distinct hosts observed under it.

Explore formaldehyde.org in the Web Graph

Connectivity

#798,208harmonic-centrality rank
Top percentile
0.60%
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://formaldehyde.org/ answered with HTTP 200.

DNS records

A
  • 172.67.129.208
  • 104.21.1.186
AAAA
  • 2606:4700:3034::6815:1ba
  • 2606:4700:3033::ac43:81d0
MX
No records found.
NS
  • clarissa.ns.cloudflare.com.
  • sri.ns.cloudflare.com.

Live preview

This is a live, sandboxed embed of formaldehyde.org — not a copy. What it shows can change any time the site itself does.

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
public, max-age=300, stale-while-revalidate=86400, stale-if-error=604800
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

What each security header does

Redirect chain

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

    → https://www.formaldehyde.org/

  2. 2.https://www.formaldehyde.org/HTTP 200

Meta tags

Title
Formaldehyde.org — Understanding Formaldehyde: Science, Safety & Industry
Description
Understanding Formaldehyde: Science, Safety & Industry
Canonical
https://www.formaldehyde.org/
Robots
index, follow, max-image-preview:large, max-snippet:-1
Generator
Not set
Open Graph title
Formaldehyde.org — Understanding Formaldehyde: Science, Safety & Industry
Open Graph description
Understanding Formaldehyde: Science, Safety & Industry
Open Graph image
https://www.formaldehyde.org/images/formaldehyde-hospital-infection-control-wound-care.webp
Open Graph type
website
Twitter card
summary_large_image
Twitter title
Formaldehyde.org
Twitter image
https://www.formaldehyde.org/images/formaldehyde-hospital-infection-control-wound-care.webp

robots.txt

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

Sitemap declared:

  • https://www.formaldehyde.org/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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Similar connectivity

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