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Periscope By Duet

Browse the Internet by connecting through your own home, unlocking geo-blocked content from anywhere in the world.

Added April 17, 2026 · Last analysed April 17, 2026 · via · 83% unique tagline

StackScope is a free public catalogue of indie launches. We find launches on Product Hunt, Hacker News and similar feeds, then crawl each site to detect its tech stack and score it for launch readiness: DNS, security headers, SEO basics. This page is what we saw on 17 April 2026; the live site may have changed since.

Periscope By Duet is early-stage. Visible gaps: missing several security headers, incomplete legal pages, and no robots.txt or sitemap.

Launched on Product Hunt on April 17, 2026. The site is served through Cloudflare, with a domain registered in 2020. We've detected 10 technologies on this site, covering CDN, DNS providers, business email, and transactional email. The stack includes Cloudflare, Cloudflare DNS, and Google Fonts.

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

3.5
StackScope Score
Poor
72/100 Launch Readiness
Well prepared
0/3 Legal
Missing
0/2 Crawl files
Missing
Vibe Score 20 · Few 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 (10)

Infrastructure
CDN Cloudflare (4)
DNS Cloudflare DNS
Protocol HTTP/3 (2)
Security HSTS (2)
Email
Business email Google Workspace
Transactional email SendGrid
Build & Framework
Font Google Fonts
Package CDN Google Hosted Libraries
Site builder Webflow (5)
Analytics & Marketing
SEO Google Search Console

Infrastructure

Network
AS13335 · US
DNS
Cloudflare DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
SSL Certificate
Google Trust Services
Valid 10 Apr 2026 to 9 Jul 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
6.2 years
Registered May 2020 · Cloudflare, Inc.

Email Security

SPF Not published. Your domain can be spoofed in phishing emails.
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 (1)

Cookies (1)
NameLifetimeDetected as
_cfuvid session Cloudflare
HTTP cookies only. This snapshot pre-dates 21 Apr 2026 when StackScope started capturing JavaScript-set cookies, localStorage, IndexedDB, and Cache Storage.

Readiness Breakdown How?

Custom title and meta description
Open Graph tags (title, image, description) (partial) missing og:image, og:description
Responsive viewport meta tag
Favicon present
Semantic HTML (nav, main, article)
- Canonical URL declared
- Twitter card meta tags

Vibe Score Breakdown How?

SignalPoints
AI CSS signals +10
AI palette signals +5
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

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

Well-Known Files

robots.txt
sitemap.xml
security.txt
llms.txt
ads.txt
humans.txt
? Privacy Policy not detected
? Terms of Service not detected
Detection works best on English language sites.

Security Headers (3/6)

Permissions-Policy experimental (check browser support)
X-XSS-Protection deprecated (use Content-Security-Policy)

Performance

262ms response time
Faster than 62% of sites
5 third-party domains loaded

Build

Code splitting
6 JS files
2 CSS files
5 Third-party domains

Brand Colours

Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.