RetentionGrade — Klaviyo Audit Tool
Get a free, instant audit of your Klaviyo account. Score your email & SMS strategy across 7 dimensions and find exactly what's costing you revenue.
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 23 April 2026; the live site may have changed since.
RetentionGrade — Klaviyo Audit Tool is partway there, with complete legal pages and fast page loads. Main gaps: missing several security headers, no sitemap, and tracking cookies set before any opt-in.
Launched on Product Hunt on April 23, 2026. The site is hosted on Vercel, with a domain registered 1 week before launch. The crawl picked up 19 technologies on this site, covering advertising, analytics, seo, and CSS frameworks. The stack includes Next.js, React, and Tailwind CSS.
For context, it's on one of the most common stacks we track, shared by 10,672 launches.
If you own this site, refresh the snapshot and see the full fix list any time →
Tech Stack (19) · Indie stack
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| Security | HSTS (2) |
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Infrastructure
Email Security
Storage (24)
| Name | Lifetime | Detected as |
|---|---|---|
| bcookie | 1y | |
| guest_id | 1y | X (Twitter) Ads |
| guest_id_ads | 1y | X (Twitter) Ads |
| guest_id_marketing | 1y | X (Twitter) Ads |
| lidc | 1d | |
| li_gc | 6mo | |
| muc_ads | 1y | X (Twitter) Ads |
| personalization_id | 1y | X (Twitter) Ads |
| zabUserId | 1y | - |
| zfccn | session | Zoho PageSense |
| zft-sdc | 21h | Zoho PageSense |
| zps-tgr-dts | 1y | Zoho PageSense |
| zsce7cb32f097de449787d6cfb23544c50d | < 1h | - |
| _fbp | 3mo | Facebook Pixel |
| _ga | 1y | Google Analytics |
| _ga_91ZNVKTLK5 | 1y | Google Analytics |
| _gcl_au | 3mo | Google Ads |
| _rdt_uuid | 3mo | Reddit Ads |
| _twpid | 1y | X (Twitter) Ads |
| Key | Size | Detected as |
|---|---|---|
| lastExternalReferrer | 5 B | - |
| lastExternalReferrerTime | 13 B | - |
| zps-ft-details | 475 B | Zoho PageSense |
| zps-ft-pghitType-details | 358 B | Zoho PageSense |
| _gcl_ls | 152 B | Google Ads |
Readiness Breakdown How?
Vibe Score Breakdown How?
| Signal | Points |
|---|---|
| AI copy 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.
