indexo.dev

calcfi.app

.app crawl

First seen 2026-04-29 · Last seen 2026-05-10 · ok HTTP/1.1 200 376 ms crawled 2026-05-07

US · 216.198.79.1 · AS16509 Amazon.com, Inc.

Reputation 100/100

sector finance type homepage

HTML metadata

Title
Free Financial Calculators — Mortgage, Tax, Retirement | CalcFi
Description
Free calculators for every money decision — mortgages, taxes, retirement, salaries, debt, home costs. Formulas cited to IRS, Fed, and Treasury. No signup.
Language
en
Canonical
https://calcfi.app
Translations
  • en-us
  • es
  • es-mx
  • es-us
Feeds

Open Graph

url
https://calcfi.app
title
Free Financial Calculators — 340+ Tools
site name
CalcFi
description
The math behind every money decision. 340+ free calculators cited to IRS, Fed, and Treasury. PDF by email. 2026 tax year.

Technology

CDN
Vercel
CMS
Next.js

Third-party hosts loaded (2)

  • analytics.ahrefs.com×1
  • us.i.posthog.com×1

DNS records live

NS
  • keira.ns.cloudflare.com
  • rob.ns.cloudflare.com
MX
  • 1 aspmx.l.google.com
  • 10 alt3.aspmx.l.google.com
  • 10 alt4.aspmx.l.google.com
  • 5 alt1.aspmx.l.google.com
  • 5 alt2.aspmx.l.google.com
TXT
  • google-site-verification=joNXkvF3-GucM0ph7TwWFvc_LB4xXrfjQXehsyWkrU4
  • google-site-verification=1k6bOGAsIV1DhPTp8tNeF0OK8CIx9nLLL0mDOWrSclE

Email authentication strong

SPF
v=spf1 include:_spf.google.com ~all
softfail (~all)
DMARC
v=DMARC1; p=quarantine; rua=mailto:hello@calcfi.app
policy: quarantine
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-03-25 to 2026-06-23
Expires in 35 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 90/100 Checked live page: https://calcfi.app/

present
  • strict-transport-security
  • content-security-policy
  • content-security-policy-report-only
  • x-frame-options
  • x-content-type-options
  • referrer-policy
  • permissions-policy
findings
  • CSP allows unsafe inline scripts/styles
  • CSP uses wildcard sources
Header values
referrer-policy
strict-origin-when-cross-origin
x-frame-options
SAMEORIGIN
permissions-policy
camera=(), microphone=(), geolocation=(), interest-cohort=()
x-content-type-options
nosniff
content-security-policy
default-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval' 'wasm-unsafe-eval' https://www.googletagmanager.com https://www.google-analytics.com https://web.clarity.ms https://*.clarity.ms https://us.i.posthog.com https://us-assets.i.posthog.com https://pagead2.googlesyndication.com https://*.doubleclick.net; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; font-src 'self' https://fonts.gstatic.com data:; connect-src 'self' https://us.i.posthog.com https://us-assets.i.posthog.com https://us.posthog.com https://www.google-analytics.com https://www.googletagmanager.com https://web.clarity.ms https://*.clarity.ms https://region1.google-analytics.com https://huggingface.co https://*.hf.co https://cdn-lfs.huggingface.co https://cdn-lfs-us-1.hf.co https://raw.githubusercontent.com https://mlc.ai https://*.mlc.ai; img-src 'self' data: https: blob:; worker-src 'self' blob: data: https://raw.githubusercontent.com https://mlc.ai https://*.mlc.ai; frame-src 'self' https://ww
strict-transport-security
max-age=63072000; includeSubDomains
content-security-policy-report-only
default-src 'self'; script-src 'self' 'unsafe-inline' https://*.posthog.com https://*.clarity.ms https://*.googletagmanager.com https://*.google-analytics.com; connect-src 'self' https://*.posthog.com https://*.clarity.ms https://*.supabase.co https://api.groq.com https://openrouter.ai; img-src 'self' data: https:; style-src 'self' 'unsafe-inline'; font-src 'self' data:; frame-ancestors 'self'

Linked from (6)