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I made a free alternative to SimpleCitizen (YC S16)

Fillvisa lets you complete U.S. immigration forms instantly in your browser - free, private, and fully local. Your data never leaves your device.

71% unique tagline

fillvisa.com · Added April 6, 2026 · Last analysed April 10, 2026· via Hacker News

This analysis is a snapshot taken on 10 April 2026. The site may have changed since then and results may not reflect its current state.
5.3
StackScope Score
Fair
30/100 Vibe Score
Some AI signals
82/100 Launch Readiness
Well prepared
neutral
AI Stance
No AI stance declared

Tech Stack (7)

Technology Category Detected via
Google Analytics analytics cookie_name script_src
Tailwind CSS css_framework structural_signal
Parked Domain dns_provider ns_host
Hostinger hosting http_header_value mx_host spf_include
HTTP/3 protocol http_header_value
Google reCAPTCHA security cookie_name
Google Search Console seo txt_prefix

Infrastructure

Hosting
AS-HOSTINGER, CY
AS47583 · CY
SSL Certificate
Let's Encrypt
Expires 10 May 2026 (29d)
Domain Age
10 months
Registered Jun 2025 · Name SRS AB

Readiness Breakdown How?

Open Graph tags (title, image, description)
Canonical URL declared
Responsive viewport meta tag
Custom title and meta description
Twitter card meta tags
Semantic HTML (nav, main, article)
Privacy policy page present
- Source maps not exposed in production
- Error tracking service installed
- Favicon present

Vibe Score Breakdown How?

SignalPoints
Code comment patterns +20
Page structure patterns +5
Comment density patterns +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.

Well-Known Files

robots.txt
llms.txt
security.txt
sitemap.xml
ads.txt
humans.txt

Legal

? Terms of Service not detected
96% unique

Security Headers (1/6)

Referrer-Policy
X-Frame-Options
Permissions-Policy
X-Content-Type-Options
Content-Security-Policy
Strict-Transport-Security
X-XSS-Protection (legacy)

Performance

142ms response time
Faster than 80% of sites
19 third-party domains loaded

Build

HTML minified
19 JS files
19 Third-party domains
Is this your site? 5 tips to improve your score
- Add a robots.txt file to control how search engines and bots crawl your site. Learn more
- Add a sitemap.xml to help search engines discover all your pages. Learn more
- Add a /.well-known/security.txt so security researchers can reach you. Learn more
- Consider adding a llms.txt file to help AI models understand your site. Not yet a standard, but gaining adoption. Learn more
- Improve your security headers. Scan your site at securityheaders.com to see what's missing.
Embed this score on your site
StackScope Score
<a href="https://stackscope.dev/launch/fth7q8xf/i-made-a-free-alternative-to-simplecitizen-yc-s16"><img src="https://stackscope.dev/badge/fth7q8xf.svg" alt="StackScope Score" height="28" /></a>