indexo.dev

erc721.org

.org crawl

First seen 2026-04-14 · Last seen 2026-05-07 · ok HTTP/1.1 200 759 ms crawled 2026-05-08

US · 185.199.110.153 · AS54113 Fastly, Inc.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
ERC-721
Description
Resources for learning about and building ERC-721 Non-Fungible Tokens
Language
en

Technology

CDN
Fastly
Server
GitHub.com
Analytics
  • Google Tag Manager

Third-party hosts loaded (2)

  • buttons.github.io×1
  • www.googletagmanager.com×1

Social

Registration

Registrar
Squarespace Domains II LLC
Created
2018-02-17
Expires
2027-02-17 273 days left
Updated
2026-02-08
Name servers
  • ns-cloud-d4.googledomains.com
  • ns-cloud-d1.googledomains.com
  • ns-cloud-d3.googledomains.com
  • ns-cloud-d2.googledomains.com

DNS records live

NS
  • ns-cloud-d1.googledomains.com
  • ns-cloud-d2.googledomains.com
  • ns-cloud-d3.googledomains.com
  • ns-cloud-d4.googledomains.com
MX
  • 10 mxa.mailgun.org
  • 10 mxb.mailgun.org
TXT
  • google-site-verification=wnAq9yM_n2oy03ueVNhn6gi1LwGyKhiDkuXJ0ihuBSE

Email authentication weak

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

Certificate (current)

R12
from 2026-04-21 to 2026-07-20
Expires in 61 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://erc721.org/

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

Links to (21)

Linked from (1)