iCalculateFast

Free online calculators for finance, health, legal, and everyday math. Mortgage, loan, BMI, calorie, GPA calculators and more — instant results, no sign-up required.

Added April 28, 2026 · Last analysed April 28, 2026 · via

Own this Launch?

StackScope records what new websites are built with, the week they launch. Most we find ourselves, by watching public internet infrastructure for brand-new sites; the rest come from Product Hunt, Hacker News and PeerPush. We crawled this one for its tech stack and scored it for launch readiness: DNS, security headers, SEO basics. This page is what we saw on 28 April 2026; the live site may have changed since.

Every technology below links to its own page: which other new sites launched with it. Vendors and agencies watch those pages with Stackdar and hear about new adopters the week they ship, from £15 a month.

iCalculateFast has the basics covered well, with complete legal pages, a thorough launch checklist, and clean crawl signals. Main gaps: missing several security headers and no email security records.

Launched on Product Hunt on April 28, 2026. The site is hosted on Netlify, with a domain registered 1 week before launch. Our crawler found 11 technologies on this site, covering advertising, analytics, consent tooling, and CSS frameworks. The stack includes Google Funding Choices, Tailwind CSS, and Google AdSense.

If you own this site, refresh the snapshot and see the full fix list any time →

7.3

StackScope Score

Good

88/100 Launch Readiness

Launch ready

1/6 Security Headers

Poor

3/3 Legal

Complete

2/2 Crawl files

Complete

Vibe Score 25 · Some AI signals

How much the site looks AI-generated. Informational pattern-match signal, not a verdict. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (11)

Infrastructure

DNS	NS1
Hosting	Netlify (3)
Security	HSTS (2)

Build & Framework

CSS framework	Tailwind CSS
Developer tools	Vite
Font	Google Fonts
UI library	shadcn/ui

Analytics & Marketing

Advertising	Google AdSense
Analytics	Google Analytics
Consent	Google Funding Choices
SEO	Google Search Console

Infrastructure

Network

AMAZON-02 - Amazon.com, Inc., US

AS16509 · US

DNS

NS1

Authoritative nameserver

DNSSEC

Not enabled

DNS responses unsigned. Cache-poisoning vulnerable.

Green hosting

Not green hosted

No green-energy record. Data from The Green Web Foundation.

SSL Certificate

Let's Encrypt

Valid 21 Apr 2026 to 20 Jul 2026

Certificate as captured in this snapshot, not a live check.

Domain Age

4 months

Registered Apr 2026 · NameCheap, Inc.

Email Security

✗

SPF Not published. Your domain can be spoofed in phishing emails.

DKIM Not detected at common selectors. Your provider may use a custom one.

✗

DMARC Not published. Receivers fall back to permissive defaults.

MTA-STS Not deployed. Mail to your domain can be downgraded to plaintext en route.

TLS-RPT Not configured. You won't hear about silent SMTP TLS handshake failures.

Storage (1)

Cookies (1)

Name	Lifetime	Detected as
FCCDCF	1y	Google Funding Choices

Readiness Breakdown How?

⚠

Custom title and meta description (partial) missing custom <title>

✓ Open Graph tags (title, image, description)

✓ Twitter card meta tags

✓ Canonical URL declared

✓ Responsive viewport meta tag

✓ Favicon present

✓ Semantic HTML (nav, main, article)

⚠

Meta description is 165 characters (advisory) Google only shows about 155–160 characters of the description in desktop search results (less on mobile); anything past that won't appear.

Vibe Score Breakdown How?

Signal	Points
AI CSS signals	+10
AI writing signals	+5
Unfilled template placeholders	+10

This score is based on structural patterns and is not definitive. Many legitimate sites may trigger signals, and AI-built sites may go undetected. It should be treated as an indicator, not a verdict.

AI Stance

No AI stance declared

✗ llms.txt published

✓ No AI bots blocked in robots.txt

Content-Signal

? No directive declared

Link headers

? None advertised

Well-Known Files

✓ robots.txt

✓ sitemap.xml (25 URLs)

✗ security.txt

✗ llms.txt

✓ ads.txt

✗ humans.txt

Legal

✓ Privacy Policy

/privacy-policy/

✓ Terms of Service

/terms-of-service/

✓ Consent manager: Google Funding Choices

86% unique

Security Headers (1/6)

✗

Referrer-Policy

✗

X-Frame-Options

✗

Permissions-Policy experimental (check browser support)

✗

X-Content-Type-Options

✗

Content-Security-Policy

✓

Strict-Transport-Security

–

X-XSS-Protection deprecated (use Content-Security-Policy)

Performance

257ms response time

Faster than 53% of sites

5 third-party domains loaded

Build

✓ Code splitting

5 JS files

2 CSS files

5 Third-party domains

Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.