Undercut
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Added 9 Nov 2026
Analysed 9 Nov 2026
via 
What we found
- It sends two of the six security headers we check; Content-Security-Policy is among those missing.
- It has a privacy policy, but we found no terms of service.
- Built with Next.js and React, the site is served through Cloudflare, with a domain registered 2 weeks before launch.
- It blocks AI crawlers in its robots.txt but also publishes an llms.txt for them.
Built with: 9 technologies
Embed this on your site
For light pages
<a href="https://firstsited.com/launch/r4mzz6mz/undercut"><img src="https://firstsited.com/badge/r4mzz6mz/stack.svg" alt="Undercut tech stack on FirstSited" height="28"></a>
For dark pages
<a href="https://firstsited.com/launch/r4mzz6mz/undercut"><img src="https://firstsited.com/badge/r4mzz6mz/stack.svg?theme=dark" alt="Undercut 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 |
Cloudflare DNS
|
DNS |
| HTTP/3 | Protocol |
Caddy
|
Server |
| Build & Framework | |
Tailwind CSS
|
CSS framework |
React
(3)
|
Framework |
Next.js
(6)
|
Meta-framework |
Lucide Icons
|
UI library |
| Analytics & Marketing | |
Google Search Console
|
SEO |
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) | |
| Twitter card meta tags | |
| Canonical URL declared | |
| Responsive viewport meta tag | |
| Favicon present | |
| Semantic HTML (nav, main, article) | |
| Page title is 67 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 /privacy | |
| Terms of service not detected |
Mentions: GDPR, Cookies, Do Not Sell
| robots.txt | |
| sitemap.xml 183 URLs | |
| security.txt optional | |
| llms.txt | |
| ads.txt only for ad-funded sites | |
| humans.txt optional |
| llms.txt published | |
| 13 AI bots blocked in robots.txt the owner's choice | |
| Content-Signal ai-train = no | |
| Content-Signal search = yes | |
| Content-Signal ai-input not declared | |
| Link headers none advertised |
| State | Record | Status |
|---|---|---|
| SPF -all | Strict (-all) | |
| DMARC p=reject | Reject (strict) | |
| DKIM | Not found at common selectors | |
| MTA-STS | Not deployed | |
| TLS-RPT | Not configured |
Hosting and network
| Network | CLOUDFLARENET - Cloudflare, Inc., US AS13335, US |
|---|---|
| DNS | Cloudflare DNS authoritative nameservers |
| DNSSEC | Not enabled DNS answers are unsigned |
| Certificate | Let's Encrypt valid 25 Oct 2026 to 23 Jan 2027, as captured |
| Domain age | 17 days registered Oct 2026, Porkbun LLC |
| Green hosting | Yes per The Green Web Foundation |
| Page build | 10 JS files, 1 CSS file 1 third-party domain, code splitting |
| Brand colours |
Storage: 0 items
Nothing stored in the browser on page load.
Performance
| Measure | This site | Reading |
|---|---|---|
| Server response | 267 ms | good, faster than 50% of sites |
| Largest contentful paint | 2,848 ms | fair |
| Layout shift | 0.02 | good |
| Page weight | 957 KB | light |
| Image weight | 97 KB | light |
| Images | 36 | 11 larger than shown, 36 without alt text |
| Third-party domains | 1 | |
| 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 writing signals +5 - Performance comes from one render on 9 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 9 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.