CostKey - Know which feature costs what
One line of code. Every AI call mapped to the function that triggered it. Cost, tokens, latency — per feature, automatically. Free.
71% unique tagline
costkey.dev
· Added April 9, 2026
· Last analysed April 10, 2026· via 
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.
Tech Stack (8)
| Technology | Category | Detected via |
|---|---|---|
| Plausible | analytics | script_src |
| Fastly | cdn | http_header_name |
| GoDaddy DNS | dns_provider | ns_host |
| Amazon SES | email_corp | mx_host |
| Resend | email_transactional | dkim_selector |
| Google Fonts | font | link_href |
| HTTP/3 | protocol | http_header_value |
| HSTS | security | http_header_name |
Infrastructure
Hosting
FASTLY - Fastly, Inc., US
AS54113 · US
SSL Certificate
Google Trust Services
Expires 30 Jun 2026
Domain Age
10 days
Registered Apr 2026 · GoDaddy.com, LLC
Readiness Breakdown How?
✓
Favicon present
✓
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
Vibe Score Breakdown How?
| Signal | Points |
|---|---|
| Copy style patterns | +5 |
| Writing style patterns | +5 |
| Code comment patterns | +20 |
| Builder platform detected | +30 |
| Typography patterns | +15 |
| 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.
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
-
Your site has structural patterns commonly associated with AI code generation. Customising templates, comments, and default styles can make it feel more unique.
Embed this score on your site
<a href="https://stackscope.dev/launch/l0ggm7uh/costkey-know-which-feature-costs-what"><img src="https://stackscope.dev/badge/l0ggm7uh.svg" alt="StackScope Score" height="28" /></a>