Latest, 15 Oct 2026:751 usersMove the mouse over the chart for any month
Ratings count
monthly, 2 years
Latest, 15 Oct 2026:1 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About HTTP Header Spy
HTTP Header Spy is a lightweight Chrome extension that provides instant access to HTTP response headers and IP information for any website you visit. With a single click, this tool reveals the technical details that websites send with each page request.
Features:
- HTTP Header Analysis: View all response headers sent by the website, including content types, caching directives, security policies, and server information
- IP Address Detection: Quickly identify the IP address of the website's server
User-Friendly Interface: Clean, organized display of header information with name-value pairs clearly separated
- One-Click Operation: Access all information with a single button press
- Alphabetically Sorted Headers: Headers are displayed in alphabetical order for easy reference
Use Cases:
- Web Development: Debug HTTP-related issues and verify correct header implementation
- Security Analysis: Check for proper security headers like Content-Security-Policy and X-XSS-Protection
- Performance Optimization: Examine caching headers to improve website load times
- Technical Troubleshooting: Identify server types and configurations during problem-solving
Perfect for web developers, security professionals, and anyone curious about the technical underpinnings of websites they visit.
Growth
Window
Users
Change
Ratings
Rating
7 days
+15
+2.0%
0
0.00
30 days
+33
+4.6%
0
0.00
6 months
+227
+43.3%
0
0.00
1 year
+500
+199.2%
0
0.00
Chrome Web Store search rankings
Where HTTP Header Spy appears when people search the store, with the 30 day change