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CaptainCalc

Offline, almanac-grade bridge toolbox for maritime professionals. Voyage planning, celestial navigation, and stability calculations.

captaincalc.com.tr · Added June 16, 2026 · Last analysed June 16, 2026 · via · 75% unique tagline

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

CaptainCalc is largely in shape, with complete legal pages, a thorough launch checklist, and well-configured email security. What needs work: missing several security headers.

Launched on Product Hunt on June 16, 2026. The site is hosted on NiobeBilisimHizmetleri - Niobe Bilisim Ltd. Sti. in Türkiye. The crawl picked up 6 technologies on this site, covering hosting, business email, frameworks, and seo. The stack includes ASP.NET, Google Search Console, and Hosting.com.tr.

For context, it's a rare Hosting.com.tr sighting, just 2 in our data.

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

Vibe Score 5 · Few AI signals
Informational pattern-match signal. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (6)

Infrastructure
Hosting Hosting.com.tr
Plesk
Web server Microsoft IIS
Email
Business email Hosting.com.tr
Build & Framework
Framework ASP.NET
Analytics & Marketing
SEO Google Search Console

Infrastructure

DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
SSL Certificate
Let's Encrypt
Valid 21 Apr 2026 to 20 Jul 2026
Certificate as captured in this snapshot, not a live check.

Email Security

SPF -all Strict (-all). Strong.
?
DKIM Not detected at common selectors. Your provider may use a custom one.
DMARC p=quarantine Quarantine (moderate)
?
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)

Local storage (1)
KeySizeDetected as
cc_lang 2 B -

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)

Performance How?

373 ms Server response
49% Faster than peers
348 ms Largest contentful paint
0.00 Cumulative layout shift
68 KB Page weight
11 KB Image weight
1 Third-party domains
0 Console errors
0 Failed requests

2 images: 2 oversized, 2 without width/height

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?

SignalPoints
AI palette 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

Welcomes AI crawlers
llms.txt published
1 AI bot blocked in robots.txt
? No directive declared
? None advertised

Well-Known Files

sitemap.xml (736 URLs)
security.txt
llms.txt
ads.txt
96% unique

Security Headers (0/6)

Permissions-Policy experimental (check browser support)
X-XSS-Protection deprecated (use Content-Security-Policy)

Build

1 JS files
1 CSS files
1 Third-party domains

Brand Colours

App Manifest

CaptainCalc
display: standalone 1 icon
theme #07070b
Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.