indexo.dev

cidr.xyz

.xyz crawl

First seen 2026-04-15 · Last seen 2026-05-07 · ok HTTP/1.1 200 480 ms crawled 2026-05-09

US · 188.114.96.3 · AS13335 Cloudflare, Inc.

Reputation 95/100 weak security headers

sector tech type app saas

HTML metadata

Title
Interactive visual CIDR and IP range calculator
Description
Instantly compute and visualize CIDR subnets, IP ranges and masks. Free online tool for accurate network design, planning and IT education.
Language
en
Canonical
https://cidr.xyz/

Open Graph

url
https://cidr.xyz/
title
Interactive visual CIDR and IP range calculator
site name
CIDR.xyz
description
Instantly compute and visualize CIDR subnets, IP ranges and masks. Free online tool for accurate network design, planning and IT education.

Technology

CDN
Cloudflare
Analytics
  • Cloudflare Insights
  • Google Tag Manager

Third-party hosts loaded (3)

  • static.cloudflareinsights.com×1
  • track.magicmonad.com×1
  • www.googletagmanager.com×1

Social

Registration

Registrar
Namecheap
Created
2015-12-07
Expires
2026-12-07 200 days left
Updated
2024-11-19
Name servers
  • kinsley.ns.cloudflare.com
  • todd.ns.cloudflare.com

DNS records live

NS
  • kinsley.ns.cloudflare.com
  • todd.ns.cloudflare.com
TXT
  • keybase-site-verification=NmwbcfBU9e5tiYxdfx3e_gDk1q7i1rOKlKmTnZSlJqo
Verified for
  • Ahrefs
  • Google

Email authentication no MX

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

Certificate (current)

WE1
from 2026-05-06 to 2026-08-04
Expires in 75 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://cidr.xyz/

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

Links to (4)

Linked from (1)