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CapnAI - Caption Generator

Generate perfect captions for Instagram, TikTok, X, Facebook & Threads with AI. Pick a photo, choose your style, post everywhere.

Added May 6, 2026 · Last analysed May 6, 2026 · via

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 6 May 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.

CapnAI - Caption Generator is partway there, with complete legal pages and fast page loads. Main gaps: missing several security headers, no sitemap, and incomplete email security.

Launched on Product Hunt on May 6, 2026. The site is served through Cloudflare, with a domain registered 7 weeks before launch. The crawl picked up 3 technologies on this site, covering CDN, protocol, and seo. The stack includes Cloudflare, Google Search Console, and HTTP/3.

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

5.0
StackScope Score
Fair
64/100 Launch Readiness
Well prepared
3/3 Legal
Complete
1/2 Crawl files
Partial
Vibe Score 66 · Many 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 (3)

Infrastructure
CDN Cloudflare (3)
Protocol HTTP/3 (2)
Analytics & Marketing
SEO Google Search Console

Infrastructure

Network
AS13335 · US
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
Green hosting
Green hosted
Host runs on renewable energy. Data from The Green Web Foundation.
SSL Certificate
Google Trust Services
Valid 7 Apr 2026 to 6 Jul 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
5 months
Registered Mar 2026 · CloudFlare, Inc.

Email Security

SPF ~all (via apex tuanhoang.dev) 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 (0)

This site uses no client-side storage we could detect on page load.

Readiness Breakdown How?

Custom title and meta description
Responsive viewport meta tag
Favicon present
Semantic HTML (nav, main, article)
- Open Graph tags (title, image, description)
- Canonical URL declared
- Twitter card meta tags

Vibe Score Breakdown How?

SignalPoints
AI CSS signals +10
AI palette signals +5
AI iconography signals +3
AI code-structure signals +5
AI scaffolding signals +8
AI layout 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

No AI stance declared
llms.txt published
No AI bots blocked in robots.txt
? No directive declared
? None advertised

Well-Known Files

robots.txt (no directives)
sitemap.xml
security.txt
llms.txt
ads.txt
humans.txt
Privacy Policy
/privacy-policy.html
Terms of Service
/terms.html
86% unique

Security Headers (0/6)

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

Performance

120ms response time
Faster than 81% of sites

Build

0 JS files
1 CSS files
0 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.