T Themerella
Technology

ASP.NET detection

Category: Backend Framework. Themerella detects this technology from public website evidence and shows confidence in the report.

Safe public URL scan. Results include technology evidence, SEO checks, security headers, accessibility basics, and a developer fix list.

Detection evidence

How Themerella detects ASP.NET

  • x-aspnet-version or x-aspnetmvc-version headers
  • ASP.NET response/header text
  • __VIEWSTATE or __EVENTVALIDATION form fields
Report value

Every detected technology should include category, confidence, evidence, and practical risk/context so the result is useful beyond logo recognition.

False-positive boundary

What to verify before acting on ASP.NET evidence

  • Headers can be removed or rewritten by IIS, proxies, or CDNs.
  • Viewstate-like fields do not prove the whole application stack alone.
Next workflow
  • Confirm ASP.NET evidence from headers and form markers.
  • Review HTTPS, cookie flags, and security-header findings.
  • Use report output to decide whether fingerprinting headers should be hidden.