Formulo
Practica Excel en español con ejercicios en una hoja real que corrigen tu fórmula al momento, y simulacros para entrevistas y oposiciones. 3 gratis.
Added 10 Nov 2026
Analysed 10 Nov 2026
via 
What we found
- We found no privacy policy or terms of service.
- It publishes DMARC but no SPF record, so receivers cannot tell which servers may send its email.
- Built with Next.js and React, the site is hosted on Vercel and served through Cloudflare, with a domain registered 6 days before launch.
- Only 17 other launches we've crawled run this exact stack.
Built with: 16 technologies · Indie stack
Embed this on your site
For light pages
<a href="https://firstsited.com/launch/itv3j9h7/formulo"><img src="https://firstsited.com/badge/itv3j9h7/stack.svg" alt="Formulo tech stack on FirstSited" height="28"></a>
For dark pages
<a href="https://firstsited.com/launch/itv3j9h7/formulo"><img src="https://firstsited.com/badge/itv3j9h7/stack.svg?theme=dark" alt="Formulo tech stack on FirstSited" height="28"></a>
How it fits together
Each technology runs on, or extends, the one it sits under.
| Technology | Type |
|---|---|
| Infrastructure | |
Cloudflare
|
CDN |
Hostinger DNS
|
DNS |
Vercel
|
Hosting |
Cloudflare Bot Management
|
Security |
| HSTS | Security |
Google Workspace
|
Business email |
Brevo
|
Email marketing |
| Build & Framework | |
Clerk
(8)
|
Auth |
Supabase
(2)
|
BaaS |
Cloudflare Turnstile
(2)
|
Captcha |
Bootstrap
|
CSS framework |
React
(3)
|
Framework |
Next.js
(6)
|
Meta-framework |
| Analytics & Marketing | |
PostHog
(3)
|
Analytics |
Google Search Console
|
SEO |
| Business Tools | |
Vercel Live
|
Collaboration |
Each technology links to its own page: which other new sites launched with it.
Site checks
| Custom title and meta description | |
| Open Graph tags (title, image, description) missing og:image | |
| Twitter card meta tags | |
| Canonical URL declared | |
| Responsive viewport meta tag | |
| Favicon present | |
| Semantic HTML (nav, main, article) | |
| Page title is 63 characters Google only shows about 60 characters of the title in search results; aim for 50–60 to keep the whole thing visible. |
| 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 not detected | |
| Terms of service not detected | |
| Consent manager analytics set no tracking cookies on our visit (it may be opt-in) | |
| Detection works best on English-language sites |
| robots.txt | |
| sitemap.xml 4 URLs | |
| security.txt optional | |
| llms.txt | |
| ads.txt only for ad-funded sites | |
| humans.txt optional |
| llms.txt published | |
| No AI bots blocked in robots.txt | |
| Content-Signal none declared | |
| Link headers none advertised |
| State | Record | Status |
|---|---|---|
| SPF | Not published | |
| DMARC p=none | Monitoring only (p=none) | |
| DKIM | Found | |
| MTA-STS | Not deployed | |
| TLS-RPT | Not configured |
Without SPF, receivers cannot tell which servers may send email for this domain.
Hosting and network
| Network | AMAZON-02 - Amazon.com, Inc., US AS16509, US |
|---|---|
| DNS | Hostinger DNS authoritative nameservers |
| DNSSEC | Not enabled DNS answers are unsigned |
| Certificate | Google Trust Services valid 3 Nov 2026 to 1 Feb 2027, as captured |
| Domain age | 8 days registered Nov 2026, HOSTINGER operations, UAB |
| Green hosting | No record per The Green Web Foundation |
| Page build | 42 JS files, 3 CSS files 3 third-party domains, code splitting |
| Brand colours |
Storage: 8 items
| Name | Lifetime | Set by |
|---|---|---|
| _cfuvid | session | Cloudflare |
| __cf_bm | < 1h | Cloudflare |
| __client | 1y | Clerk |
| __client_uat | 1y | - |
| __client_uat_RYyc1Hfi | 1y | - |
| Key | Size | Set by |
|---|---|---|
| __clerk_environment | 6.9 KB | Clerk |
| __clerk_protect_pid | 26 B | Clerk |
| __clerk_protect_st:clerk.getformulo.com | 524 B | Clerk |
Performance
| Measure | This site | Reading |
|---|---|---|
| Server response | 1,320 ms | fair, faster than 6% of sites |
| Largest contentful paint | 5,848 ms | slow |
| Layout shift | 0.01 | good |
| Page weight | 1.5 MB | fair |
| Third-party domains | 3 | |
| 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 onboarding 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.