Perf
Perf verifies, repairs, and rejects AI outputs before they reach users, applications, or downstream systems. Build AI systems you can trust in production.
Estimated origin: United States
Added May 5, 2026
· Last analysed May 5, 2026 · via 
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 5 May 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.
Perf has the basics covered well, with complete legal pages, a thorough launch checklist, and clean crawl signals. What needs work: missing several security headers, tracking cookies set before any opt-in, and incomplete email security.
Launched on Product Hunt on May 5, 2026. The site is hosted on Amazon.com in the Netherlands, with a domain registered in 2024. Our crawler found 11 technologies on this site, covering transactional email, advertising, AI builders, and analytics. The stack includes Cloudflare DNS, Framer, and Google Ads.
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Tech Stack (11)
| DNS |
Cloudflare DNS
|
| Protocol | HTTP/3 (2) |
| Security | HSTS (2) |
| Business email |
Google Workspace
(3)
|
| Transactional email |
MailerSend
|
Resend
|
| Font |
Google Fonts
|
| Advertising |
Google Ads
(2)
|
| Analytics |
Google Analytics
(3)
|
| SEO |
Google Search Console
|
| AI builder |
Framer
(6)
|
Infrastructure
Email Security
Storage (5)
| Name | Lifetime | Detected as |
|---|---|---|
| _ga | 1y | Google Analytics |
| _ga_18GQGM6X9Y | 1y | Google Analytics |
| _ga_7M6MY1Q918 | 1y | Google Analytics |
| _gcl_au | 3mo | Google Ads |
| Key | Size | Detected as |
|---|---|---|
| _gcl_ls | 152 B | Google Ads |