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Domain report

simplemd.app

simplemd.app ranks in the top 0.24% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 1 distinct host observed under it.

Explore simplemd.app in the Web Graph

Connectivity

#320,698harmonic-centrality rank
Top percentile
0.24%
Hosts observed
1

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://simplemd.app/ answered with HTTP 200.

DNS records

A
  • 172.67.185.86
  • 104.21.92.26
AAAA
  • 2606:4700:3036::6815:5c1a
  • 2606:4700:3031::ac43:b956
MX
  • 1 aspmx.l.google.com.
  • 10 alt3.aspmx.l.google.com.
  • 10 alt4.aspmx.l.google.com.
  • 5 alt1.aspmx.l.google.com.
  • 5 alt2.aspmx.l.google.com.
NS
  • denver.ns.cloudflare.com.
  • stephane.ns.cloudflare.com.

Live preview

Screenshot of simplemd.app

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

Since simplemd.app 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
max-age=0, must-revalidate, no-cache, no-store, private
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
Not sent
Permissions-Policy
Not sent

What each security header does

Redirect chain

  1. 1.http://simplemd.app/HTTP 301

    → https://simplemd.app/

  2. 2.https://simplemd.app/HTTP 200

Meta tags

Title
SimpleMD - Markdown Notes in Your Browser | SimpleMD
Description
Fast, quick access minimalist markdown editor with cloud sync
Canonical
https://simplemd.app
Robots
Not set
Generator
Not set
Open Graph title
SimpleMD - Markdown Notes in Your Browser
Open Graph description
Fast, quick access minimalist markdown editor with cloud sync
Open Graph image
https://simplemd.app/images/facebook-card.png
Open Graph type
website
Twitter card
summary_large_image
Twitter title
SimpleMD - Markdown Notes in Your Browser
Twitter image
https://simplemd.app/images/twitter-card.png

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

  • Google Analyticsanalytics

    Found "googletagmanager.com/gtag/js" in the page's HTML

  • Cloudflare Bot Managementcdn

    Cookie set: __cf_bm

Related domains

Similar connectivity

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