indexo.dev

neetcode.io

.io crawl

First seen 2026-05-06 · Last seen 2026-05-06 · ok HTTP/1.1 200 885 ms crawled 2026-05-14

US · 199.36.158.100 · AS54113 Fastly, Inc.

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title
NeetCode
Description
A better way to prepare for coding interviews.
Language
en

Technology

Third-party hosts loaded (3)

  • m.servedby-buysellads.com×1
  • www.facebook.com×1
  • www.youtube.com×1

DNS records live

NS
  • ns-cloud-e1.googledomains.com
  • ns-cloud-e2.googledomains.com
  • ns-cloud-e3.googledomains.com
  • ns-cloud-e4.googledomains.com
MX
  • 1 smtp.google.com
TXT
  • linkedin-site-verification=8256b6ae-5221-4def-b2f8-23afe1607df9
  • google-site-verification=8HiE15NCiCuYIZ9e0DPBbCUCyxPGhNtR5jUM-Em8D2o
  • google-site-verification=yWZry6C8ADqzQY0buB30EDfu7IIqVnjqbgDFA1u79Qw

Email authentication weak

SPF
not published
DMARC
v=DMARC1; p=none; rua=mailto:mail+dmarc@neetcode.io; sp=none;
policy: none (monitoring only) · sp=none
DKIM
no key found at common selectors

Certificate (current)

WR3
from 2026-03-21 to 2026-06-19
Expires in 31 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://neetcode.io/

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=31556926

Linked from (1)