Calfy

Free Online Calculators & Tools

calfy.net · Added June 12, 2026 · Last analysed June 12, 2026 · via

Own this Launch?

StackScope is a free public catalogue of indie launches. We find launches on Product Hunt, Hacker News and similar feeds, then crawl each site to detect its tech stack and score it for launch readiness: DNS, security headers, SEO basics. This page is what we saw on 12 June 2026; the live site may have changed since.

Calfy looks production-ready overall, with complete legal pages and a thorough launch checklist. Main gaps: missing Content-Security-Policy and Strict-Transport-Security, no sitemap, and incomplete email security.

Launched on Product Hunt on June 12, 2026. The site is hosted on Cloudflare in the United States, with a domain registered 1 week before launch. We've detected 16 technologies on this site, covering advertising, analytics, CDN, and CMS. The stack includes Google Funding Choices, WordPress, and Cloudflare.

It's one of just 15 launches we've crawled on this exact stack and more locked down than the typical Product Hunt launch.

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

7.7

StackScope Score

Good

90/100 Launch Readiness

Launch ready

4/6 Security Headers

Decent

3/3 Legal

Complete

1/2 Web Standards

Partial

86/100 Performance

Fast

Vibe Score 18 · Few AI signals

Informational pattern-match signal. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (16)

Infrastructure

CDN	Cloudflare
DNS	Cloudflare DNS
Hosting	IONOS (2)
Protocol	HTTP/3
Server	PHP

Business email	IONOS Email

Build & Framework

CMS	WordPress (2)
Font	Google Fonts
WordPress plugin	Site Kit by Google

Analytics & Marketing

Advertising	Google Ads (2)
Advertising	Google AdSense (3)
Analytics	Cloudflare Web Analytics
Analytics	Google Analytics (2)
Consent	Google Funding Choices (2)
SEO	Yandex Domain Verification
Tag management	Google Tag Manager

Infrastructure

Network

CLOUDFLARENET - Cloudflare, Inc., US

AS13335 · US

DNS

Cloudflare DNS

Authoritative nameserver

DNSSEC

Not enabled

DNS responses unsigned. Cache-poisoning vulnerable.

SSL Certificate

Google Trust Services

Valid 4 Jun 2026 to 2 Sep 2026

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

Domain Age

8 days

Registered Jun 2026 · IONOS SE

Email Security

✓

SPF ~all Soft-fail (~all). Common and accepted.

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 (3)

Cookies (3)

Name	Lifetime	Detected as
FCCDCF	1y	Google Funding Choices
_ga	1y	Google Analytics
_ga_5ENR7Y1XY4	1y	Google Analytics

Readiness Breakdown How?

✓ Custom title and meta description

⚠

Open Graph tags (title, image, description) (partial) missing og:image

✓ Twitter card meta tags

✓ Canonical URL declared

✓ Responsive viewport meta tag

✓ Favicon present

✓ Semantic HTML (nav, main, article)

Performance How?

770 ms Server response

18% Faster than peers

2036 ms Largest contentful paint

0.00 Cumulative layout shift

1.4 MB Page weight

3 KB Image weight

12 Third-party domains

0 Console errors

0 Failed requests

⚠ 2 images: 1 oversized, 2 missing alt text

Indicative grade from a single automated render, not a substitute for Lighthouse or field data, and not part of the StackScope score.

Vibe Score Breakdown How?

Signal	Points
Placeholder branding	+10
AI writing signals	+3
AI iconography signals	+5

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

Blocks AI crawlers

✗ llms.txt published

✗ 9 AI bots blocked in robots.txt

Content-Signal

✗ ai-train = no

✓ search = yes

? ai-input (not declared)

Link headers

? None advertised

Well-Known Files

✓ robots.txt

✗ sitemap.xml

✗ security.txt

✗ llms.txt

✗ ads.txt

✗ humans.txt

Legal

✓ Privacy Policy

✓ Terms of Service

✓ Consent manager: Google Funding Choices

80% unique

Mentions:

Security Headers (4/6)

✓

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)

Build

✓ HTML minified

✗ CSS minified

✗ JS minified

✓ Code splitting

12 JS files

3 CSS files

12 Third-party domains

Brand Colours

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