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Cobalt - Book Summaries

+500 résumés de livres de non-fiction. Captez l'essentiel d'un livre en 8 minutes. Essai gratuit de 7 jours sur iOS et Android.

Added August 20, 2026 · Last analysed August 20, 2026 · via

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

Cobalt - Book Summaries scores highly overall, with a complete set of security headers, a thorough launch checklist, and clean crawl signals. Visible gaps: incomplete legal pages and incomplete email security.

Launched on Product Hunt on August 20, 2026. The site is hosted on Hostinger and served through Cloudflare. The crawl picked up 16 technologies on this site, covering advertising, directory, security, and analytics. The stack includes Google, Cloudflare, and Cloudflare Bot Management.

For context, it's on one of the most common stacks we track, shared by 1,169 launches and more locked down than the typical Product Hunt launch.

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

9.0
StackScope Score
Excellent
100/100 Launch Readiness
Launch ready
2/3 Legal
Partial
2/2 Crawl files
Complete
Vibe Score 25 · 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 (16)

Infrastructure
CDN Cloudflare
DNS Hostinger DNS
Hosting Hostinger (2)
Security Cloudflare Bot Management
HSTS
Server PHP (2)
Email
Business email Hostinger Email
Build & Framework
Font Google Fonts
Analytics & Marketing
Advertising Facebook Pixel (2)
Google Ads
Analytics Google Analytics (2)
Consent Google
SEO Google Search Console
Tag management Google Tag Manager (2)
Other
Directory Product Hunt
Uneed

Infrastructure

DNS
Hostinger 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 13 Aug 2026 to 11 Nov 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 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)

Cookies (2)
NameLifetimeDetected as
PHPSESSID session PHP
__cf_bm < 1h Cloudflare

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)

Performance How?

455 ms Server response
34% Faster than peers
688 ms Largest contentful paint
0.02 Cumulative layout shift
1.9 MB Page weight
1007 KB Image weight
7 Third-party domains
0 Console errors
0 Failed requests

70 images: 69 oversized, 1 without width/height, 27 missing alt text

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 iconography signals +5
AI code-structure 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

Welcomes AI crawlers
llms.txt published
No AI bots blocked in robots.txt
? No directive declared
? None advertised

Well-Known Files

robots.txt
sitemap.xml (876 URLs)
security.txt
llms.txt
ads.txt
humans.txt
? Privacy Policy not detected
Terms of Service
/es/blog/cuantos-libros-leen-los-franceses
Consent manager: Google

Security Headers (6/6)

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

Build

3 JS files
2 CSS files
7 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.