indexo.dev

calculator-sleep.com

.com crawl

First seen 2026-04-13 · Last seen 2026-05-07 · ok HTTP/1.1 200 1854 ms crawled 2026-05-07

US · 216.198.79.193 · AS16509 Amazon.com, Inc.

Reputation 100/100

Classifying

HTML metadata

Title
Sleep Calculator - AI Sleep Optimization Tool | Best Bedtime Calculator for Better Sleep Cycles | calculator-sleep.com
Description
Advanced Sleep Calculator with AI optimization technology. Calculate perfect bedtime using 90-minute sleep cycles. Free sleep AI calculator helps optimize your sleep schedule, improve sleep quality, reduce sleep debt, and wake up refreshed. Best bedtime calculator for better sleep health, sleep hygiene, and sleep patterns. Expert sleep tips for deep sleep, REM sleep, and optimal sleep duration.
Language
en
Generator
v0.dev
Canonical
https://calculator-sleep.com
Translations
  • zh ×2
  • ar
  • bn
  • de
  • en
  • es
  • fr
  • hi
  • id
  • ja
  • ko
  • pt
  • ru
  • ur
  • vi

Open Graph

url
https://calculator-sleep.com
title
Sleep Calculator - AI Sleep Optimization Tool for Better Sleep Cycles
locale
en_US
site name
Sleep Calculator AI
description
Advanced Sleep Calculator with AI optimization. Calculate perfect bedtime using 90-minute sleep cycles. Free sleep AI calculator for better rest, improved sleep quality, and optimal sleep health.

Technology

CDN
Vercel
CMS
Next.js
Analytics
  • Google Tag Manager
Fonts
  • Google Fonts

Third-party hosts loaded (3)

  • fonts.googleapis.com×1
  • fonts.gstatic.com×1
  • www.googletagmanager.com×1

Registration

Registrar
Cloudflare, Inc.
Created
2025-06-20
Expires
2026-06-20 31 days left
Updated
2025-06-20
Name servers
  • cora.ns.cloudflare.com
  • dakota.ns.cloudflare.com

DNS records live

NS
  • cora.ns.cloudflare.com
  • dakota.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)

R12
from 2026-04-23 to 2026-07-22
Expires in 63 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://www.calculator-sleep.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 (2)