Calclend

Loan calculators without the spam

Finance

Estimated origin: China

Added July 30, 2026 · Last analysed July 30, 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 30 July 2026; the live site may have changed since.

Calclend is partway there, with complete legal pages and clean crawl signals. Main gaps: missing several security headers and no email security records.

Launched on Product Hunt on July 30, 2026. The site is hosted on Vercel and served through Cloudflare, with a domain registered 7 weeks before launch. The crawl picked up 10 technologies on this site, covering security, CDN, CSS frameworks, and directory. The stack includes Next.js, React, and Tailwind CSS.

For context, it's on one of the most common stacks we track, shared by 11,842 launches.

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

5.6

StackScope Score

Fair

29/100 Launch Readiness

Needs work

1/6 Security Headers

Poor

3/3 Legal

Complete

2/2 Crawl files

Complete

94/100 Performance

Fast

Vibe Score 0 · No 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 (10)

Infrastructure

CDN	Cloudflare
DNS	Alibaba Cloud
Hosting	Vercel
Security	Cloudflare Bot Management
Security	HSTS

Build & Framework

CSS framework	Tailwind CSS
Framework	React
Meta-framework	Next.js (4)

Analytics & Marketing

SEO	Google Search Console

Other

Directory	Product Hunt

Infrastructure

Network

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

AS16509 · US

DNS

Alibaba Cloud

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 11 Jun 2026 to 9 Sep 2026

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

Domain Age

1 month

Registered Jun 2026 · Alibaba Cloud Computing Ltd. d/b/a HiChina (www.net.cn)

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
__cf_bm	< 1h	Cloudflare

Readiness Breakdown How?

✓ Responsive viewport meta tag

✓ Semantic HTML (nav, main, article)

- Custom title and meta description

- Open Graph tags (title, image, description)

- Canonical URL declared

- Twitter card meta tags

- Favicon present

Performance How?

779 ms Server response

16% Faster than peers

736 ms Largest contentful paint

0.00 Cumulative layout shift

181 KB Page weight

1 KB Image weight

1 Third-party domains

0 Console errors

0 Failed requests

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

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 (102 URLs)

✗ security.txt

✗ llms.txt

✗ ads.txt

✗ humans.txt

Legal

✓ Privacy Policy

/privacy-policy

✓ Terms of Service

/blog/category/loan

92% unique

Mentions:

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)

Build

✓ Code splitting

11 JS files

1 CSS files

1 Third-party domains

Brand Colours

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