xmark
xmark syncs your x bookmarks and lets you chat with an ai about what you've saved. summarize threads, find posts by topic, and surface forgotten context.
Added July 10, 2026
· Last analysed July 10, 2026 · via 
StackScope records what new websites are built with, the week they launch. Most we find ourselves, by watching public internet infrastructure for brand-new sites; the rest come from Product Hunt, Hacker News and PeerPush. We crawled this one for its tech stack and scored it for launch readiness: DNS, security headers, SEO basics. This page is what we saw on 10 July 2026; the live site may have changed since.
Every technology below links to its own page: which other new sites launched with it. Vendors and agencies watch those pages with Stackdar and hear about new adopters the week they ship, from £15 a month.
xmark ships with the launch fundamentals in place, with complete legal pages, a complete set of security headers, and a thorough launch checklist. Worth fixing first: tracking cookies set before any opt-in and no email security records.
Launched on Product Hunt on July 10, 2026. The site is hosted on Vercel and served through Cloudflare, with a domain registered 12 weeks before launch. The crawl picked up 35 technologies on this site, covering advertising, social embeds, javascript library, and analytics. The stack includes Next.js, React, and Tailwind CSS.
For context, it's running the same core stack as 14,963 other launches and tighter on security headers than most Product Hunt launches.
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Tech Stack (35) · Indie stack
| CDN |
Cloudflare
|
| DNS |
Vercel DNS
|
| Hosting |
Vercel
(2)
|
| Security |
Cloudflare Bot Management
|
| HSTS |
| BaaS |
Supabase
(2)
|
| CSS framework |
Tailwind CSS
|
| Framework |
React
|
| JavaScript library |
Motion
|
Three.js
|
|
Zod
|
|
| Meta-framework |
Next.js
(5)
|
| Mobile |
Apple App Store
(2)
|
| UI library |
Lucide Icons
|
shadcn/ui
|
| Advertising |
AppLovin
(4)
|
| Axon AI (2) | |
Facebook Pixel
(3)
|
|
Google Ads
(3)
|
|
Reddit Ads
(4)
|
|
TikTok Pixel
(5)
|
|
X (Twitter) Ads
(4)
|
|
| Analytics |
Google Analytics
(5)
|
PostHog
(5)
|
|
| SEO |
LinkedIn
(4)
|
| Social |
Facebook
|
Google Search
|
|
Reddit
|
|
Twitter Widgets
|
|
X (Twitter)
|
|
| Tag management |
Google Tag Manager
(5)
|
| Payments |
Stripe
|
| Error tracking |
Sentry
(2)
|
| AI API |
OpenAI API
|
| AI service |
OpenAI
|
Infrastructure
Email Security
Storage (31)
| Name | Lifetime | Detected as |
|---|---|---|
| axcrt | 1y | - |
| ax_visitor | 1y | - |
| 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 |
| ph_phc_v8PqU2AtBut6Ced8hXv5aDbTNrPmv3UV9E4X5QwfqHyN_posthog | 1y | PostHog |
| sb-ocklrdubhbthakxmblfd-auth-token | 1mo | Supabase |
| xm_attr | 1mo | - |
| _axwrt | 1y | - |
| _cfuvid | session | Cloudflare |
| _ga | 1y | Google Analytics |
| _ga_JRL2NSBYGS | 1y | Google Analytics |
| _gcl_au | 3mo | Google Ads |
| _rdt_uuid | 3mo | Reddit Ads |
| _ttp | 3mo | TikTok Pixel |
| _twpid | 1y | X (Twitter) Ads |
| __cf_bm | < 1h | Cloudflare |
| Key | Size | Detected as |
|---|---|---|
| ph_phc_v8PqU2AtBut6Ced8hXv5aDbTNrPmv3UV9E4X5QwfqHyN_posthog | 831 B | PostHog |
| _applovin_pixel_version | 8 B | AppLovin |
| _gcl_ls | 277 B | Google Ads |
| Key | Size | Detected as |
|---|---|---|
| ph_phc_v8PqU2AtBut6Ced8hXv5aDbTNrPmv3UV9E4X5QwfqHyN_posthog | 90 B | PostHog |
| ph_phc_v8PqU2AtBut6Ced8hXv5aDbTNrPmv3UV9E4X5QwfqHyN_primary_window_exists | 4 B | PostHog |
| tt_appInfo | 17 B | TikTok Pixel |
| tt_pixel_session_index | 20 B | TikTok Pixel |
| tt_sessionId | 60 B | TikTok Pixel |
| _axsid | 36 B | - |
Readiness Breakdown How?
Performance How?
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?
| Signal | Points |
|---|---|
| AI CSS signals | +10 |
| AI onboarding signals | +5 |
| AI palette signals | +5 |
| AI writing signals | +5 |
| AI stack signals | +10 |
| AI layout 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.