indexo.dev

crypto101.io

.io crawl

First seen 2026-04-11 · Last seen 2026-05-18 · ok HTTP/1.1 200 3269 ms crawled 2026-05-18

US · 104.21.31.71 · AS13335 Cloudflare, Inc.

Reputation 92/100 no dmarc policy

sector education type homepage

HTML metadata

Title
Crypto 101

Technology

CDN
Cloudflare
Social widgets
  • YouTube Embed

Third-party hosts loaded (1)

  • www.youtube.com×1

Social

DNS records live

NS
  • jill.ns.cloudflare.com
  • noah.ns.cloudflare.com
MX
  • 10 mxa.mailgun.org
  • 10 mxb.mailgun.org

Email authentication weak

SPF
v=spf1 include:mailgun.org ~all
softfail (~all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

WE1
from 2026-04-03 to 2026-07-02
Expires in 43 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 60/100 Checked live page: https://www.crypto101.io/

present
  • strict-transport-security
  • x-content-type-options
findings
  • missing Content Security Policy
  • missing frame protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-content-type-options
nosniff
strict-transport-security
max-age=15552000; preload

Links to (2)

Linked from (2)