CallCard

A shareable page where visitors can message, call, and save your contact. Privacy controls on every field. Built-in CRM. No app required.

callcard.io · Added June 4, 2026 · Last analysed June 4, 2026 · via PeerPush · 57% unique tagline

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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 4 June 2026; the live site may have changed since.

CallCard ships with the launch fundamentals in place, with complete legal pages, a thorough launch checklist, and clean crawl signals. Worth fixing first: missing several security headers, analytics without a consent banner, and incomplete email security.

Launched on PeerPush on June 4, 2026. The site is hosted on Cloudflare in the United States. We've detected 8 technologies on this site, covering seo, analytics, CDN, and DNS providers. The stack includes Bing Webmaster, Cloudflare, and Cloudflare DNS.

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

8.6

StackScope Score

Excellent

100/100 Launch Readiness

Launch ready

3/6 Security Headers

Decent

3/3* Legal

Complete*

2/2 Web Standards

Complete

94/100 Performance

Fast

Vibe Score 85 · Strong AI signals

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

Tech Stack (8)

Infrastructure

CDN	Cloudflare
DNS	Cloudflare DNS
Protocol	HTTP/3

Business email	Google Workspace

Build & Framework

Font	Google Fonts

Analytics & Marketing

Analytics	PostHog
SEO	Bing Webmaster
SEO	Google Search Console

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 3 Jun 2026 to 1 Sep 2026

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

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 (4)

Local storage (1)

Key	Size	Detected as
ph_phc_3Ei9AZ3YxKmlVBetGCX05UTZjDVZkrf4N14nbjGUIyV_posthog	1.4 KB	PostHog

Session storage (3)

Key	Size	Detected as
ph_phc_3Ei9AZ3YxKmlVBetGCX05UTZjDVZkrf4N14nbjGUIyV_posthog	388 B	PostHog
ph_phc_3Ei9AZ3YxKmlVBetGCX05UTZjDVZkrf4N14nbjGUIyV_primary_window_exists	4 B	PostHog
ph_phc_3Ei9AZ3YxKmlVBetGCX05UTZjDVZkrf4N14nbjGUIyV_window_id	38 B	PostHog

Readiness Breakdown How?

✓ Custom title and meta description

✓ Open Graph tags (title, image, description)

✓ Twitter card meta tags

✓ Canonical URL declared

✓ Responsive viewport meta tag

✓ Favicon present

✓ Semantic HTML (nav, main, article)

⚠

Page title is 78 characters (advisory) Google only shows about 60 characters of the title in search results; aim for 50–60 to keep the whole thing visible.

⚠

Meta description is 181 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.

Performance How?

611 ms Server response

27% Faster than peers

2376 ms Largest contentful paint

0.00 Cumulative layout shift

720 KB Page weight

204 KB Image weight

4 Third-party domains

⚠ 13 images: 3 oversized, 13 without width/height, 1 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 copy signals	+5
AI onboarding signals	+5
AI writing signals	+5
AI code-structure signals	+5
AI typography signals	+5
AI asset signals	+10
AI layout signals	+5
AI CSS signals	+15

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

Welcomes AI crawlers

✓ 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 (1 URLs)

✗ security.txt

✓ llms.txt

✗ ads.txt

✗ humans.txt

Legal

✓ Privacy Policy

✓ Terms of Service

? Consent manager not detected

Analytics detected; tracking fires without visitor opt-in.

88% unique

Mentions:

Cookies Do Not Sell Updated: March 4, 2026

Security Headers (3/6)

✓

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

6 JS files

1 CSS files

4 Third-party domains

Brand Colours

App Manifest

CallCard

display: standalone 7 icons

theme #00e5ff

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