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Double9 Books

Double9 Books is a Best Book Publisher in India for all authors around the world that offers the most comprehensive strategies for marketing & and publishing books across the globe.

Content
India Estimated origin: India

Added April 29, 2026 · Last analysed April 29, 2026 · via · 78% 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 29 April 2026; the live site may have changed since.

Double9 Books ships with the launch fundamentals in place, with complete legal pages, a thorough launch checklist, and well-configured email security. Worth fixing first: missing Referrer-Policy and Permissions-Policy and tracking cookies set before any opt-in.

Launched on Product Hunt on April 29, 2026. The site is served through Cloudflare, with a domain registered in 2022. The crawl picked up 19 technologies on this site, covering advertising, analytics, package cdn, and seo. The stack includes Shopify, BigRock DNS, and Bing Webmaster.

For context, it's one of 96 launches on this exact stack and tighter on security headers than most Product Hunt launches.

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

8.9
StackScope Score
Excellent
94/100 Launch Readiness
Launch ready
3/3* Legal
Complete*
2/2 Crawl files
Complete
Vibe Score 8 · 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 (19)

Infrastructure
CDN Cloudflare (3)
DNS BigRock DNS
Protocol HTTP/3 (2)
Security HSTS (2)
Email
Transactional email SendGrid
Build & Framework
Developer tools Vite
JavaScript library jQuery
Package CDN cdnjs (2)
Google Hosted Libraries
WordPress plugin WooCommerce Pixel Manager
Analytics & Marketing
Advertising Facebook Pixel (2)
Google Ads (3)
Analytics Google Analytics (3)
Microsoft Clarity
SEO Bing Webmaster
Google Search Console (2)
Tag management Google Tag Manager (3)
Commerce & Payments
Ecommerce Shopify (8)
Business Tools
Fraud prevention Riskified

Infrastructure

Network
AS13335 · CA
DNS
BigRock DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
SSL Certificate
Let's Encrypt
Valid 11 Apr 2026 to 10 Jul 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
4.4 years
Registered Feb 2022 · BigRock Solutions Ltd

Email Security

SPF ~all Soft-fail (~all). Common and accepted.
DKIM Detected via known email provider
DMARC p=quarantine Quarantine (moderate)
?
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 (21)

Cookies (13)
NameLifetimeDetected as
localization 1y -
test_cookie < 1h -
_fbp 2mo Facebook Pixel
_ga 1y Google Analytics
_ga_4FFMF9Z1TM 1y Google Analytics
_ga_SKLFHWRBSH 1y Google Analytics
_gcl_au 2mo Google Ads
_shopify_analytics 12mo Shopify
_shopify_essential 12mo Shopify
_shopify_marketing 12mo Shopify
_shopify_s < 1h Shopify
_shopify_y 1y Shopify
_shop_app_essential 12mo Shopify
Local storage (3)
KeySizeDetected as
lastExternalReferrer 5 B -
lastExternalReferrerTime 13 B -
_gcl_ls 152 B Google Ads
Session storage (5)
KeySizeDetected as
consentHeader 38 B Shopify
popupShown 4 B -
ri-hoUc3C1lRCasOtjqTh1ybBd3RWky-z 13 B Riskified
wpm-ri-86851cdc-2d65-4426-ac3a-d8ea4e1d726c-1777456932-z 13 B WooCommerce Pixel Manager
_shs_state 129 B Shopify

Readiness Breakdown How?

Custom title and meta description
Open Graph tags (title, image, description)
Canonical URL declared
Responsive viewport meta tag
Favicon present
Semantic HTML (nav, main, article)
Meta description is 181 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.
- Twitter card meta tags

Vibe Score Breakdown How?

SignalPoints
AI CSS signals +8

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
? No directive declared
? None advertised

Well-Known Files

robots.txt
sitemap.xml (9 URLs)
security.txt
llms.txt
ads.txt
humans.txt
Privacy Policy
/pages/privacy-policy
Terms of Service
/pages/terms-conditions
? Consent manager not detected
Analytics set tracking cookies on our visit, with no opt-in step.
88% unique

Security Headers (4/6)

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

Performance

2688ms response time
Faster than 1% of sites
13 third-party domains loaded

Build

Code splitting
30 JS files
3 CSS files
13 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.