indexo.dev

nodeschool.io

.io crawl

First seen 2026-04-13 · Last seen 2026-05-02 · ok HTTP/1.1 200 807 ms crawled 2026-05-06

US · 188.114.97.3 · AS13335 Cloudflare, Inc.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
NodeSchool
Language
en
Translations
  • ar
  • bg
  • de
  • es
  • fa
  • fi
  • fr-fr
  • hi
  • id
  • it
  • ja
  • ko
  • nb-no
  • pl
  • pt-br
  • pt-pt
  • ru
  • sv
  • th
  • tr
  • uk
  • vi
  • zh-cn
  • zh-tw

Technology

CDN
Cloudflare
Fonts
  • Google Fonts

Third-party hosts loaded (2)

  • ajax.googleapis.com×1
  • fonts.googleapis.com×1

Social

DNS records live

NS
  • brad.ns.cloudflare.com
  • kristin.ns.cloudflare.com
MX
  • 10 mxa.mailgun.org
  • 10 mxb.mailgun.org

Email authentication partial

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

Certificate (current)

WE1
from 2026-04-09 to 2026-07-08
Expires in 50 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://nodeschool.io/

findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Links to (8)

Linked from (1)