indexo.dev

croncalculator.com

.com crawl

First seen 2026-04-15 · Last seen 2026-05-07 · ok HTTP/1.1 200 3565 ms crawled 2026-05-10

US · 104.21.61.55 · AS13335 Cloudflare, Inc.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
Cron Calculator - Build & Understand Cron Expressions
Description
Build, validate, and understand cron expressions instantly. Free online tool with AI-powered generation, human-readable explanations, and run time previews.
Language
en
Canonical
https://croncalculator.com

Open Graph

url
https://croncalculator.com
title
Cron Calculator - Build & Understand Cron Expressions
site name
Cron Calculator
description
Build, validate, and understand cron expressions instantly. Free online tool with AI-powered generation, human-readable explanations, and run time previews.

Technology

CDN
Cloudflare
CMS
Next.js

Third-party hosts loaded (1)

  • scripts.simpleanalyticscdn.com×1

Registration

Registrar
Cloudflare, Inc.
Created
2025-05-08
Expires
2027-05-08 352 days left
Updated
2026-04-08
Name servers
  • lady.ns.cloudflare.com
  • rob.ns.cloudflare.com

DNS records live

NS
  • lady.ns.cloudflare.com
  • rob.ns.cloudflare.com
Verified for
  • Google

Email authentication no MX

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

Certificate (current)

WE1
from 2026-03-20 to 2026-06-18
Expires in 29 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://croncalculator.com/

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

Linked from (1)