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Sim

Sim is the open-source AI workspace where teams build, deploy, and manage AI agents. Connect 1,000+ integrations and every major LLM to create agents that automate real work, visually, conversationally, or with code.

AI
United States Estimated origin: United States

Added July 11, 2026 · Last analysed July 11, 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 11 July 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.

Sim scores highly overall, with complete legal pages, a thorough launch checklist, and clean crawl signals. Visible gaps: missing Permissions-Policy and Strict-Transport-Security, tracking cookies set before any opt-in, and incomplete email security.

Launched on Product Hunt on July 10, 2026. The site is hosted on Amazon.com in the United States, with a domain registered in 2018. We've detected 52 technologies on this site, covering video, social embeds, advertising, and analytics. The stack includes Next.js, React, and Tailwind CSS.

It's on one of the most common stacks we track, shared by 5,772 launches and more locked down than the typical Product Hunt launch.

If you own this site, refresh the snapshot and see the full fix list any time →

9.1
StackScope Score
Excellent
100/100 Launch Readiness
Launch ready
3/3* Legal
Complete*
2/2 Crawl files
Complete
Vibe Score 25 · Some AI signals
How much the site looks AI-generated. Informational pattern-match signal, not a verdict. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (52) · Indie stack

Infrastructure
Cloud Azure Blob Storage
DNS Vercel DNS
Storage Azure Storage
Email
Business email Google Workspace (3)
Transactional email Resend
Build & Framework
Audio Apple Music
Mixcloud
SoundCloud
BaaS Supabase
Captcha Cloudflare Turnstile
CSS framework Tailwind CSS
Developer tools Firecrawl
Framework React
JavaScript library Nano Stores
Zod
Media GIPHY
Spotify
Tenor
Meta-framework Next.js (5)
UI library Lucide Icons
shadcn/ui
Video Cloudflare Stream
Dailymotion
Loom
Rumble
Streamable
Twitch
Vidyard
Vimeo
Wistia
YouTube
Business Tools
Productivity Google Docs
Google Drive
SaaS Atlassian
Zoom
Scheduling Cal.com
AI & Emerging
AI agent Browser Use
AI API ElevenLabs
Exa

Infrastructure

Network
AS16509 · US
DNS
Vercel DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
Green hosting
Not green hosted
No green-energy record. Data from The Green Web Foundation.
SSL Certificate
Amazon
Valid 1 Oct 2025 to 30 Oct 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
8.4 years
Registered Apr 2018 · GoDaddy.com, LLC

Email Security

SPF ~all Soft-fail (~all). Common and accepted.
DKIM Detected via known email provider
DMARC p=none None (p=none). Monitoring only.
?
MTA-STS Not deployed. Mail to your domain can be downgraded to plaintext en route.
?
TLS-RPT Not configured. You won't hear about silent SMTP TLS handshake failures.

Storage (5)

Cookies (3)
NameLifetimeDetected as
ph_phc_UxlreRCQrBzVcGVzFX6UWtgjl9KmbdiPetqSAZdHS48_posthog 1y PostHog
_ga 1y Google Analytics
_ga_DR7YBE70VS 1y Google Analytics
Local storage (1)
KeySizeDetected as
ph_phc_UxlreRCQrBzVcGVzFX6UWtgjl9KmbdiPetqSAZdHS48_posthog 242 B PostHog
Session storage (1)
KeySizeDetected as
ph_phc_UxlreRCQrBzVcGVzFX6UWtgjl9KmbdiPetqSAZdHS48_primary_window_exists 4 B PostHog

Readiness Breakdown How?

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)

Performance How?

476 ms Server response
33% Faster than peers
830 ms Largest contentful paint
0.05 Cumulative layout shift
1.8 MB Page weight
644 KB Image weight
3 Third-party domains
0 Console errors
0 Failed requests

14 images: 6 oversized, 8 without width/height, 8 missing alt text

Indicative grade from a single automated render, not a substitute for Lighthouse or field data, and not part of the StackScope score.

Vibe Score Breakdown How?

SignalPoints
AI copy signals +5
AI palette signals +5
AI stack signals +10
AI layout signals +5

This score is based on structural patterns and is not definitive. Many legitimate sites may trigger signals, and AI-built sites may go undetected. It should be treated as an indicator, not a verdict.

AI Stance

Welcomes AI crawlers
llms.txt published
No AI bots blocked in robots.txt
? No directive declared
? None advertised

Well-Known Files

robots.txt
sitemap.xml (407 URLs)
security.txt
llms.txt
ads.txt
humans.txt
Privacy Policy
/privacy
Terms of Service
/terms
? Consent manager not detected
Analytics set tracking cookies on our visit, with no opt-in step.
72% unique

Security Headers (4/6)

Referrer-Policy via <meta name="referrer">
Permissions-Policy experimental (check browser support)
X-XSS-Protection deprecated (use Content-Security-Policy)

Build

Code splitting
32 JS files
3 CSS files
3 Third-party domains

Brand Colours

App Manifest

Sim — The AI Workspace | Build, Deploy & Manage AI Agents
display: standalone 3 icons
theme #33c482
productivity developer business
Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.