Buildcores
3D PC Builder and Part Picker. Find compatible parts for the lowest prices and see how your build looks before you buy.
What we found
- It sends none of the six security headers we check.
- DMARC only monitors (p=none), so email spoofing this domain is still delivered.
- It has a robots.txt but no sitemap.
- Built with Next.js and React, the site is hosted on DigitalOcean App Platform and served through Cloudflare, with a domain registered in 2019.
Built with: 25 technologies
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For light pages
<a href="https://firstsited.com/launch/td46b6bv/buildcores"><img src="https://firstsited.com/badge/td46b6bv/stack.svg" alt="Buildcores tech stack on FirstSited" height="28"></a>
For dark pages
<a href="https://firstsited.com/launch/td46b6bv/buildcores"><img src="https://firstsited.com/badge/td46b6bv/stack.svg?theme=dark" alt="Buildcores 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
(2)
|
CDN |
DigitalOcean DNS
|
DNS |
DigitalOcean App Platform
|
Hosting |
| HTTP/3 | Protocol |
Cloudflare Bot Management
|
Security |
Google Workspace
(3)
|
Business email |
Firebase Trigger Email
|
Transactional email |
SendGrid
|
Transactional email |
| Build & Framework | |
Firebase
(3)
|
BaaS |
Tailwind CSS
|
CSS framework |
React
(2)
|
Framework |
date-fns
|
JavaScript library |
Motion
|
JavaScript library |
Three.js
|
JavaScript library |
tRPC
|
JavaScript library |
Zod
|
JavaScript library |
Next.js
(6)
|
Meta-framework |
Apple App Store
|
Mobile |
Lucide Icons
|
UI library |
MUI
|
UI library |
shadcn/ui
|
UI library |
| Analytics & Marketing | |
Google Analytics
(3)
|
Analytics |
Google Search Console
|
SEO |
Google Tag Manager
(2)
|
Tag management |
| AI & Emerging | |
OpenAI
|
AI service |
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) |
| 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 | |
| Consent manager analytics set no tracking cookies on our visit (it may be opt-in) |
Mentions: Cookies, Updated: August 7, 2026
| robots.txt | |
| sitemap.xml | |
| security.txt optional | |
| llms.txt | |
| ads.txt | |
| 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 ~all | Soft-fail (~all), common and accepted | |
| DMARC p=none | Monitoring only (p=none) | |
| DKIM | Found | |
| MTA-STS | Not deployed | |
| TLS-RPT | Not configured |
Hosting and network
| Network | CLOUDFLARENET - Cloudflare, Inc., US AS13335, US |
|---|---|
| DNS | DigitalOcean DNS authoritative nameservers |
| DNSSEC | Not enabled DNS answers are unsigned |
| Certificate | Google Trust Services valid 9 Oct 2026 to 7 Jan 2027, as captured |
| Domain age | 7.3 years registered Jul 2019, NameCheap, Inc. |
| Green hosting | Yes per The Green Web Foundation |
| Page build | 84 JS files, 6 CSS files 3 third-party domains, code splitting |
| Brand colours |
Storage: 10 items
| Name | Lifetime | Set by |
|---|---|---|
| __cf_bm | < 1h | Cloudflare |
| Key | Size | Set by |
|---|---|---|
| bc_analytics_session | 73 B | - |
| bc_cid | 36 B | - |
| bc_first_visit | 61 B | - |
| buildcores-browser-activity-v1 | 80 B | - |
| signedIn | 5 B | - |
| Database | Version | Set by |
|---|---|---|
| firebase-heartbeat-database | 1 | Firebase |
| firebase-installations-database | 1 | Firebase |
| firebaseLocalStorageDb | 1 | Firebase |
| firebase_remote_config | 1 | Firebase |
Using 288 KB of browser storage (of a 10 GB quota).
Performance
| Measure | This site | Reading |
|---|---|---|
| Server response | 263 ms | good, faster than 50% of sites |
| Largest contentful paint | 1,444 ms | good |
| Layout shift | 0.00 | good |
| Page weight | 5.8 MB | heavy |
| Image weight | 718 KB | fair |
| Images | 183 | 12 larger than shown, 50 without width and height, 136 without alt text |
| 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: some 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 CSS signals +10 AI palette signals +5 AI writing signals +5 AI stack signals +10 - Performance comes from one render on 8 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 8 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.