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Notebook OS

Notebook OS is a free Chrome extension that adds Skills, Studio Recipes, Capture Spoken Thoughts, Academic Search, Premium Deck View, and more on top of Gemini Notebook — without replacing anything Gemini Notebook already does well.

AI

Added August 2, 2026 · Last analysed August 2, 2026 · via

Own this Launch?
Screenshot of Notebook OS

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 2 August 2026; the live site may have changed since.

Notebook OS looks production-ready overall, with a thorough launch checklist and clean crawl signals. Worth fixing first: missing several security headers, incomplete legal pages, and no email security records.

Launched on Product Hunt on August 2, 2026. The site is hosted on Vercel, with a domain registered 5 weeks before launch. We've detected 5 technologies on this site, covering DNS providers, frameworks, hosting, and meta-frameworks. The stack includes Next.js, React, and HSTS.

It's running the same core stack as 2,665 other launches.

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

6.4
StackScope Score
Good
90/100 Launch Readiness
Launch ready
1/6 Security Headers
Poor
2/3 Legal
Partial
2/2 Crawl files
Complete
78/100 Performance
Fast
Vibe Score 10 · 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 (5)

Infrastructure
DNS Vercel DNS
Hosting Vercel
Security HSTS
Build & Framework
Framework React
Meta-framework Next.js (5)

Infrastructure

Network
AMAZON-02 - Amazon.com, Inc., US
AS16509 · US
DNS
Vercel 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
Let's Encrypt
Valid 2 Jul 2026 to 30 Sep 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
1 month
Registered Jun 2026 · Name SRS AB

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 (0)

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

Readiness Breakdown How?

✓ Custom title and meta description
⚠
Open Graph tags (title, image, description) (partial) missing og:image
✓ Twitter card meta tags
✓ Canonical URL declared
✓ Responsive viewport meta tag
✓ Favicon present
✓ Semantic HTML (nav, main, article)
⚠
Page title is 68 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 232 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?

762 ms Server response
16% Faster than peers
692 ms Largest contentful paint
0.00 Cumulative layout shift
1.7 MB Page weight
757 KB Image weight
2 Third-party domains
0 Console errors
0 Failed requests

⚠ 4 images: 4 oversized, 4 without width/height

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

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
Content-Signal
? No directive declared
Link headers
? None advertised

Well-Known Files

✓ robots.txt
✓ sitemap.xml (8 URLs)
✗ security.txt
✗ llms.txt
✗ ads.txt
✗ humans.txt

Legal

✓ Privacy Policy
/privacy
? Terms of Service not detected
90% unique
Mentions:
Cookies Updated: July 4, 2026

Security Headers (1/6)

✗
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

✓ Code splitting
11 JS files
1 CSS files
2 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.