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DaysLeft

How old is your body, really? A free, instant biological-age mirror. No signup.

daysleft.io · Added June 9, 2026 · Last analysed June 9, 2026 · via Hacker News · 77% 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 9 June 2026; the live site may have changed since.

DaysLeft ships with the launch fundamentals in place, with complete legal pages, a complete set of security headers, and a thorough launch checklist. Worth fixing first: analytics without a consent banner and no email security records.

Launched on Hacker News on June 9, 2026. The site is hosted on Amazon.com in the United States. Our crawler found 6 technologies on this site, covering analytics, DNS providers, frameworks, and hosting. The stack includes Next.js, React, and Cloudflare DNS.

Notably, it's running the same core stack as 1,409 other launches and tighter on security headers than most Hacker News launches.

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

10.0
StackScope Score
Excellent
100/100 Launch Readiness
Launch ready
3/3* Legal
Complete*
2/2 Web Standards
Complete
Vibe Score 20 · Few AI signals
Informational pattern-match signal. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (6)

Infrastructure
DNS Cloudflare DNS
Hosting Vercel
Security HSTS
Build & Framework
Framework React
Meta-framework Next.js (2)
Analytics & Marketing
Analytics PostHog

Infrastructure

Network
AS16509 · US
DNS
Cloudflare DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
SSL Certificate
Let's Encrypt
Valid 31 May 2026 to 29 Aug 2026
Certificate as captured in this snapshot, not a live check.

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)

Local storage (1)
KeySizeDetected as
finite_anon_id 36 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)
Page title is 64 characters (advisory) Google only shows about 60 characters of the title in search results; aim for 50–60 to keep the whole thing visible.
Meta description is 210 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.

Performance How?

239 ms Server response
66% Faster than peers
496 ms Largest contentful paint
0.00 Cumulative layout shift
2.2 MB Page 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.

Vibe Score Breakdown How?

SignalPoints
AI palette signals +5
AI writing signals +5
AI asset signals +10

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

Well-Known Files

sitemap.xml (21 URLs)
security.txt
llms.txt
ads.txt
humans.txt
? Consent manager not detected
Analytics detected; tracking fires without visitor opt-in.
92% unique

Security Headers (6/6)

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

Build

HTML minified
CSS minified
JS minified
Code splitting
10 JS files
1 CSS files
1 Third-party domains

Brand Colours

App Manifest

DaysLeft — You are finite.
display: standalone 5 icons
theme #0a0a0b
lifestyle health utilities
Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.