Subnet Mask Calculator
Free online subnet mask calculator. Instantly calculate network address, broadcast address, wildcard mask, host range and CIDR notation. Perfect for CCNA students and network engineers.
86% unique tagline
netcalc.online
· Added April 7, 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 (12)
| Technology | Category | Detected via |
|---|---|---|
| Google Ads | advertising | script_src |
| Google AdSense | advertising | script_src |
| Google Analytics | analytics | cookie_name script_src |
| Cloudflare | cdn | http_header_name http_header_value |
| Google CDN | cdn | link_href |
| Google Funding Choices | consent | cookie_name script_src |
| Cloudflare DNS | dns_provider | ns_host |
| Google Fonts | font | link_href |
| Netlify | hosting | http_header_name |
| HTTP/3 | protocol | http_header_value |
| HSTS | security | http_header_name |
| Google Search Console | seo | txt_prefix |
Infrastructure
Hosting
CLOUDFLARENET - Cloudflare, Inc., US
AS13335 · US
SSL Certificate
Let's Encrypt
Expires 30 Jun 2026
Readiness Breakdown How?
✓
Favicon present
✓
Open Graph tags (title, image, description)
✓
Canonical URL declared
✓
Responsive viewport meta tag
✓
Custom title and meta description
✓
Semantic HTML (nav, main, article)
✓
Privacy policy page present
-
Source maps not exposed in production
-
Error tracking service installed
-
Twitter card meta tags
Vibe Score Breakdown How?
| Signal | Points |
|---|---|
| Writing style patterns | +5 |
| Code comment patterns | +15 |
| Typography patterns | +5 |
| Placeholder values detected | +10 |
| 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? 4 tips to improve your score
-
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.
-
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/fad7axqs/subnet-mask-calculator"><img src="https://stackscope.dev/badge/fad7axqs.svg" alt="StackScope Score" height="28" /></a>