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.
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 →
Tech Stack (19)
| CDN |
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| DNS |
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| Protocol | HTTP/3 (2) |
| Security | HSTS (2) |
| Transactional email |
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| Developer tools |
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| JavaScript library |
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| Package CDN |
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| WordPress plugin |
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| Advertising |
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| Analytics |
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| SEO |
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| Tag management |
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| Ecommerce |
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| Fraud prevention |
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Infrastructure
Email Security
Storage (21)
| Name | Lifetime | Detected 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 |
| Key | Size | Detected as |
|---|---|---|
| lastExternalReferrer | 5 B | - |
| lastExternalReferrerTime | 13 B | - |
| _gcl_ls | 152 B | Google Ads |
| Key | Size | Detected 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?
Vibe Score Breakdown How?
| Signal | Points |
|---|---|
| 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.
