indexo.dev

sigfigcalculator.io

.io crawl

First seen 2026-05-27 · Last seen 2026-05-30 · ok HTTP/1.1 200 950 ms crawled 2026-05-30

US · 66.29.146.222 · AS22612 Namecheap, Inc.

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
Sig Fig Calculator – Count Significant Figures
Description
Sigfig Calculator is a free significant figures calculator for rounding, counting and solving with precision. Fast, accurate and easy to use.
Language
en-US
Generator
Redux 4.5.10
Canonical
https://sigfigcalculator.io/
Translations
  • ar
  • bn
  • de
  • en
  • es
  • fr
  • it
  • ja
  • pt
  • ru
  • zh
Feeds

Open Graph

url
https://sigfigcalculator.io/
title
Sig Fig Calculator – Count Significant Figures
locale
en_US
site name
SigFig Calculator
description
Sigfig Calculator is a free significant figures calculator for rounding, counting and solving with precision. Fast, accurate and easy to use.

Technology

Server
LiteSpeed
CMS
WordPress
jQuery
3.7.1
Analytics
  • Google Tag Manager
Fonts
  • Google Fonts

Third-party hosts loaded (5)

  • images.pexels.com×6
  • fonts.googleapis.com×2
  • cdnjs.cloudflare.com×1
  • themepanthers.com×1
  • www.googletagmanager.com×1

Social

Contact

Email
Phone

DNS records live

NS
  • dns1.namecheaphosting.com
  • dns2.namecheaphosting.com
MX
  • 10 mx2-hosting.jellyfish.systems
  • 20 mx3-hosting.jellyfish.systems
  • 5 mx1-hosting.jellyfish.systems

Email authentication partial

SPF
v=spf1 +a +mx +ip4:66.29.132.206 +ip4:66.29.146.207 include:spf.web-hosting.com ~all
softfail (~all)
DMARC
v=DMARC1; p=none;
policy: none (monitoring only)
DKIM
  • default: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApNqaCk7VgDZ1oT+4MppB5o4EvaeYaDXhiz/qhRx/V2eYTx68RuTPB9+npJsfhrRoJgVzVSDLPdJN3T…
selectors probed

Certificate (current)

Sectigo Public Server Authentication CA DV R36
from 2026-05-02 to 2026-11-17
Expires in 169 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 35/100 Checked live page: https://sigfigcalculator.io/

present
  • permissions-policy
findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
Header values
permissions-policy
private-state-token-redemption=(self "https://www.google.com" "https://www.gstatic.com" "https://recaptcha.net" "https://challenges.cloudflare.com" "https://hcaptcha.com"), private-state-token-issuance=(self "https://www.google.com" "https://www.gstatic.com" "https://recaptcha.net" "https://challenges.cloudflare.com" "https://hcaptcha.com")

Links to (2)

Linked from (3)