Send Letters Online UK
Send letters online from anywhere in the UK. We print, fold, frank and post via Royal Mail - from £2.86. No printer, no stamps, no queuing. Despatched daily.
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 3 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.
Send Letters Online UK looks production-ready overall, with complete legal pages, a thorough launch checklist, and well-configured email security. Visible gaps: missing several security headers and tracking cookies set before any opt-in.
Launched on PeerPush on July 3, 2026. The site is hosted on Google LLC in the United States, with a domain registered 7 weeks before launch. We've detected 21 technologies on this site, covering analytics, developer tools, ui library, and advertising. The stack includes Clerk, Tailwind CSS, and Express.
It's on one of the most common stacks we track, shared by 7,724 launches.
If you own this site, refresh the snapshot and see the full fix list any time →
Tech Stack (21)
| DNS |
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| Protocol | HTTP/3 |
| Security | HSTS |
| Auth |
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| CSS framework |
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| Developer tools |
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| Font |
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| JavaScript library |
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| UI library |
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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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| SaaS |
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| AI builder |
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| Backend framework |
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Infrastructure
Email Security
Storage (12)
| Name | Lifetime | Detected as |
|---|---|---|
| GAESA | 29d | - |
| ph_phc_sDx3ENWyXyfEHw8vKFB9FtK6TEApMMtm7o9xMEp4oRjk_posthog | 1y | PostHog |
| _gcl_au | 3mo | Google Ads |
| __client | 1y | Clerk |
| __client_uat | 1y | Clerk |
| __client_uat_NrPFOCmW | 1y | Clerk |
| Key | Size | Detected as |
|---|---|---|
| ph_phc_sDx3ENWyXyfEHw8vKFB9FtK6TEApMMtm7o9xMEp4oRjk_posthog | 1.6 KB | PostHog |
| _gcl_ls | 277 B | Google Ads |
| __clerk_environment | 6.3 KB | Clerk |
| Key | Size | Detected as |
|---|---|---|
| ph_phc_sDx3ENWyXyfEHw8vKFB9FtK6TEApMMtm7o9xMEp4oRjk_posthog | 300 B | PostHog |
| ph_phc_sDx3ENWyXyfEHw8vKFB9FtK6TEApMMtm7o9xMEp4oRjk_primary_window_exists | 4 B | PostHog |
| ph_phc_sDx3ENWyXyfEHw8vKFB9FtK6TEApMMtm7o9xMEp4oRjk_window_id | 38 B | PostHog |
Readiness Breakdown How?
Performance How?
⚠ 2 images: 2 oversized, 1 without width/height
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 copy signals | +5 |
| AI onboarding signals | +5 |
| AI stack signals | +10 |
| AI code-structure signals | +10 |
| Recognised AI builder signature | +100 |
| AI typography signals | +15 |
| 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.