indexo.dev

knowhowshowhow.org

.org crawl

First seen 2026-06-01 · Last seen 2026-06-01 · ok HTTP/1.1 200 1019 ms crawled 2026-06-01

US · 76.76.21.164 · AS16509 Amazon.com, Inc.

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
HOME | Know How Show How
Description
Know How Show How
Language
en

Technology

CDN
Vercel
CMS
Next.js
JS framework
Next.js

DNS records live

NS
  • ns1.vercel-dns.com
  • ns2.vercel-dns.com
MX
  • 0 mx1.mailchannels.net
  • 0 mx2.mailchannels.net

Email authentication weak

SPF
v=spf1 mx include:netblocks.dreamhost.com include:relay.mailchannels.net -all
strict (-all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-05-08 to 2026-08-06
Expires in 63 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://www.knowhowshowhow.org/en

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)