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Costile

Open-source proxy that tracks every AI token in real time and enforces hard budget caps on Anthropic Claude & OpenAI. Stop surprise bills before they happen.

AI

Added April 14, 2026 · Last analysed April 14, 2026 · via Hacker News

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 14 April 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.

Costile is partway there, with a thorough launch checklist. Worth fixing first: missing several security headers, incomplete legal pages, and no sitemap.

Launched on Hacker News on April 14, 2026. The site is hosted on Railway and served through Cloudflare, with a domain registered 1 day before launch. The crawl picked up 9 technologies on this site, covering DNS providers, backend framework, CDN, and email forwarding. The stack includes Cloudflare, Cloudflare DNS, and Express.

For context, it's running the same core stack as 667 other launches.

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

4.8
StackScope Score
Fair
88/100 Launch Readiness
Launch ready
2/3 Legal
Partial
1/2 Crawl files
Partial
Vibe Score 36 · Some 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 (9)

Infrastructure
CDN Cloudflare (3)
DNS Cloudflare DNS
Porkbun DNS
Hosting Railway (2)
Protocol HTTP/3 (2)
Email
Email forwarding Porkbun Email Forwarding
Build & Framework
Font Google Fonts
Business Tools
Forms Tally (2)
Other
Backend framework Express (2)

Infrastructure

Network
AS13335 · US
DNS
Cloudflare DNS
Authoritative nameserver
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
Let's Encrypt
Valid 12 Apr 2026 to 11 Jul 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
4 months
Registered Apr 2026 · Porkbun LLC

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.

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
Semantic HTML (nav, main, article)
Meta description is 211 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.
- Favicon present

Vibe Score Breakdown How?

SignalPoints
AI copy signals +5
AI palette signals +5
AI writing signals +3
AI iconography signals +3
AI code-structure signals +5
Round-number metric claim +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
ai-train = no
search = yes
? ai-input (not declared)
? None advertised

Well-Known Files

robots.txt
sitemap.xml
security.txt
llms.txt
ads.txt
humans.txt
Privacy Policy
/privacy.html
? Terms of Service not detected
82% unique

Security Headers (0/6)

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

Performance

418ms response time
Faster than 38% of sites
5 third-party domains loaded

Build

1 JS files
0 CSS files
5 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.