indexo.dev

ethtechtree.com

.com crawl

First seen 2026-04-22 · Last seen 2026-05-13 · ok HTTP/1.1 200 6673 ms crawled 2026-05-16

US · 76.76.21.21 · AS16509 Amazon.com, Inc.

Reputation 100/100

Classifying

HTML metadata

Title
ETH Tech Tree
Description
Advanced Solidity challenges to test your Ethereum development skills.
Language
en

Open Graph

title
ETH Tech Tree
description
Advanced Solidity challenges to test your Ethereum development skills.

Technology

CDN
Vercel
CMS
Next.js
Analytics
  • Plausible

Third-party hosts loaded (1)

  • plausible.io×1

Social

Registration

Registrar
Amazon Registrar, Inc.
Created
2022-11-08
Expires
2026-11-08 171 days left
Updated
2025-10-04
Name servers
  • ns-1366.awsdns-42.org
  • ns-2014.awsdns-59.co.uk
  • ns-221.awsdns-27.com
  • ns-980.awsdns-58.net

DNS records live

NS
  • ns-1366.awsdns-42.org
  • ns-2014.awsdns-59.co.uk
  • ns-221.awsdns-27.com
  • ns-980.awsdns-58.net

Email authentication no MX

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

Certificate (current)

R13
from 2026-04-25 to 2026-07-24
Expires in 64 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://www.ethtechtree.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)