Snapshots: Jul 29 launch 2.3 Jul 25 discovery –

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sleepsignal.app

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Health

Added July 25, 2026 · Last analysed July 29, 2026 · via StackScope Discovery · also on Hacker News , Product Hunt

Own this Launch?
Screenshot of sleepsignal.app

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 29 July 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.

sleepsignal.app still has work before launch. Visible gaps: missing several security headers, incomplete legal pages, and no robots.txt or sitemap.

The site is hosted on Namecheap in the United States, with a domain registered the day of launch. The crawl picked up 5 technologies on this site, covering business email, developer tools, DNS providers, and servers. The stack includes Jellyfish Cloud Email, LiteSpeed Web Server, and Namecheap DNS.

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

2.3
StackScope Score
Poor
82/100 Launch Readiness
Well prepared
0/6 Security Headers
Poor
0/3 Legal
Missing
0/2 Crawl files
Missing
93/100 Performance
Fast
Vibe Score 0 · No 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 (5)

Infrastructure
DNS Namecheap DNS
Server LiteSpeed Web Server
Email
Business email Jellyfish Cloud Email
Namecheap Hosting Email
Build & Framework
Developer tools Vite

Infrastructure

Network
NAMECHEAP-NET - Namecheap, Inc., US
AS22612 · US
DNS
Namecheap DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
Green hosting
Not green hosted
No green-energy record. Data from The Green Web Foundation.
SSL Certificate
SSL Corporation
Valid 22 Jul 2026 to 5 Feb 2027
Certificate as captured in this snapshot, not a live check.
Domain Age
1 month
Registered Jul 2026 · Namecheap Inc.

Email Security

✓
SPF ~all Soft-fail (~all). Common and accepted.
?
DKIM Not detected at common selectors. Your provider may use a custom one.
✗
DMARC p=none None (p=none). Monitoring only.
?
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 (2)

Local storage (2)
KeySizeDetected as
hut 5 B -
sessionDuration 2 B -

Readiness Breakdown How?

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

Performance How?

676 ms Server response
21% Faster than peers
1344 ms Largest contentful paint
0.00 Cumulative layout shift
74 KB Page weight
1 Third-party domains
1 Console errors
1 Failed requests
Broken first-party requests (1), worth fixing
  • 401 /account-info

Indicative grade from a single automated render, not a substitute for Lighthouse or field data, and not part of the StackScope score.

AI Stance

No AI stance declared
✗ llms.txt published
✓ No AI bots blocked in robots.txt
Content-Signal
? No directive declared
Link headers
? None advertised

Well-Known Files

✗ robots.txt
✗ sitemap.xml
✗ security.txt
✗ llms.txt
✗ ads.txt
✗ humans.txt

Legal

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

Security Headers (0/6)

✗
Referrer-Policy
✗
X-Frame-Options
✗
Permissions-Policy experimental (check browser support)
✗
X-Content-Type-Options
✗
Content-Security-Policy
✗
Strict-Transport-Security
–
X-XSS-Protection deprecated (use Content-Security-Policy)

Build

1 JS files
1 CSS files
1 Third-party domains

App Manifest

sleepsignal.app
display: standalone 2 icons
theme #000000
Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.