indexo.dev

321markdown.com

.com crawl

First seen 2026-04-19 · Last seen 2026-05-13 · ok HTTP/1.1 200 4532 ms crawled 2026-05-13

US · 76.76.21.21 · AS16509 Amazon.com, Inc.

Reputation 100/100

Classifying

HTML metadata

Title
321Markdown - Fast, Simple Markdown Editor
Description
A clean, fast markdown editor that works in your browser. Create, edit, and export markdown documents with real-time preview. No account required.
Language
en
Canonical
https://321markdown.com

Open Graph

url
https://321markdown.com
title
321Markdown - Fast, Simple Markdown Editor
locale
en_US
site name
321Markdown
description
A clean, fast markdown editor that works in your browser. Create, edit, and export markdown documents with real-time preview.

Technology

CDN
Vercel
CMS
Next.js

Third-party hosts loaded (1)

  • sendmyvoice.com×2

Registration

Registrar
Cloudflare, Inc.
Created
2025-04-27
Expires
2027-04-27 342 days left
Updated
2026-03-28
Name servers
  • grannbo.ns.cloudflare.com
  • miguel.ns.cloudflare.com

DNS records live

NS
  • grannbo.ns.cloudflare.com
  • miguel.ns.cloudflare.com
TXT
  • google-site-verification=s_gBfOSinVHSA0Pn8o4S2ElL_0L_ZczQUcG2SyKLA2U

Email authentication no MX

SPF
not published
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-05-08 to 2026-08-06
Expires in 79 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://www.321markdown.com/

present
  • strict-transport-security
findings
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
strict-transport-security
max-age=63072000

Links to (1)

Linked from (1)