WBX Sandbox
Run AI-generated code in isolated Firecracker microVMs or lightweight WebAssembly. Background jobs, batches of up to 1,000 tasks, budget limits, execution receipts and artifacts – hosted in the EU.
Estimated origin: Czechia
Added 10 Nov 2026
Analysed 10 Nov 2026
via 
What we found
- The page is missing Open Graph sharing tags, a canonical URL, Twitter card tags, and a favicon.
- It has a robots.txt but no sitemap.
- The site is hosted on KronosNet - KXCOMM s.r.o. in Czechia, with a domain registered in 2022.
Built with: 3 technologies
Site checks
| Custom title and meta description | |
| Responsive viewport meta tag | |
| Semantic HTML (nav, main, article) | |
| Meta description is 197 characters Google only shows about 155–160 characters of the description in desktop search results (less on mobile); anything past that won't appear. | |
| Open Graph tags (title, image, description) | |
| Canonical URL declared | |
| Twitter card meta tags | |
| Favicon present |
| Referrer-Policy | |
| X-Frame-Options | |
| Permissions-Policy experimental | |
| X-Content-Type-Options | |
| Content-Security-Policy | |
| Strict-Transport-Security | |
| X-XSS-Protection deprecated, not counted |
| Privacy policy /privacy | |
| Terms of service /terms |
Mentions: Cookies, Do Not Sell, Updated: November 10, 2026
| robots.txt | |
| sitemap.xml | |
| security.txt optional | |
| llms.txt optional | |
| ads.txt only for ad-funded sites | |
| humans.txt optional |
| llms.txt published not published | |
| No AI bots blocked in robots.txt | |
| Content-Signal none declared | |
| Link headers none advertised |
| State | Record | Status |
|---|---|---|
| SPF -all | Strict (-all) (from wbx.cz) | |
| DMARC p=quarantine | Quarantine (from wbx.cz) | |
| DKIM | Not found at common selectors | |
| MTA-STS | Not deployed | |
| TLS-RPT | Not configured |
Hosting and network
| Network | KronosNet - KXCOMM s.r.o., CZ AS212859, CZ |
|---|---|
| DNSSEC | Not enabled DNS answers are unsigned |
| Certificate | Let's Encrypt valid 6 Nov 2026 to 4 Feb 2027, as captured |
| Domain age | 4.2 years registered Aug 2022, Webglobe, s.r.o. |
| Green hosting | No record per The Green Web Foundation |
| Page build | 1 JS file, 3 CSS files 2 third-party domains |
| Brand colours |
Storage: 2 items
| Name | Lifetime | Set by |
|---|---|---|
| wbxsandbox_portal | 2h | - |
| XSRF-TOKEN | 2h | - |
Performance
| Measure | This site | Reading |
|---|---|---|
| Server response | 437 ms | good, faster than 34% of sites |
| Largest contentful paint | 644 ms | good |
| Layout shift | 0.01 | good |
| Page weight | 230 KB | light |
| Image weight | 1 KB | light |
| Images | 1 | all sized and labelled |
| Third-party domains | 2 | |
| Console errors | 0 | none |
| Failed requests | 0 | none |
From a single automated render of the home page. A quick guide, not a substitute for Lighthouse or field data. How we measure
Notes
-
Looks AI-built: few AI signals.
How much the site looks AI-generated. It is a pattern match shown for interest, not a verdict.
Which signals fired
Signal Points AI copy signals +5 AI palette signals +5 - Performance comes from one render on 10 November 2026 and will vary between visits.
How we know
FirstSited records what new websites are built with, usually within a day of going live. Most we find ourselves, by watching public internet infrastructure for brand-new sites; the rest come from Product Hunt, Hacker News and PeerPush. We checked this one in full: its tech stack, DNS, security headers and page basics. This page is what we saw on 10 November 2026; the live site may have changed since.
Every technology below links to its own page: which other new sites launched with it. Watch any of them and get every new site that uses it as it goes live, from £15 a month.