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SubAlert

Track every subscription and get alerts 7, 3, and 1 days before each charge. Forward receipts to auto-detect.

Finance

Added May 21, 2026 · Last analysed May 21, 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 21 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.

SubAlert is missing several launch fundamentals. Worth fixing first: missing several security headers, incomplete legal pages, and no sitemap.

Launched on Product Hunt on May 21, 2026. The site is hosted on Vercel and served through Cloudflare. Our crawler found 9 technologies on this site, covering CDN, CSS frameworks, DNS providers, and email forwarding. The stack includes Next.js, React, and Tailwind CSS.

It's also running the same core stack as 14,980 other launches.

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

3.4
StackScope Score
Poor
64/100 Launch Readiness
Well prepared
0/3 Legal
Missing
1/2 Crawl files
Partial
Vibe Score 5 · Few 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
DNS Cloudflare DNS
Hosting Vercel
Protocol HTTP/3
Security HSTS
Email
Email forwarding Cloudflare Email Routing (2)
Build & Framework
CSS framework Tailwind CSS
Framework React
Meta-framework Next.js

Infrastructure

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 19 May 2026 to 17 Aug 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 (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 copy 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

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 not detected
? Terms of Service not detected
Detection works best on English language sites.

Security Headers (1/6)

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

Performance

260ms response time
Faster than 53% of sites

Build

Code splitting
10 JS files
1 CSS files
0 Third-party domains

App Manifest

SubAlert — Never miss a subscription
display: standalone 2 icons
theme #6d3bd7
Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.