HTTP Header Spy icon

HTTP Header Spy

by BenColeman95 · Developer Tools
Manifest V3 Free
View in Chrome Web Store Data as of 15 Oct 2026

Shows HTTP headers and site IP for current page

Users
751
+33 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
1
0 in 30 days
Store rank
#36K
#30K among extensions
Version
1.0
updated 12 Mar 2025

Users

monthly, 2 years
0376751Mar 2025Jan 2026Oct 2026
Latest, 15 Oct 2026: 751 usersMove the mouse over the chart for any month

Ratings count

monthly, 2 years
001Mar 2025Jan 2026Oct 2026
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

WindowUsersChangeRatingsRating
7 days+15+2.0%00.00
30 days+33+4.6%00.00
6 months+227+43.3%00.00
1 year+500+199.2%00.00

Chrome Web Store search rankings

Where HTTP Header Spy appears when people search the store, with the 30 day change
Search phrasePosition30 days
header#9+5

Version history

1 versions recorded
1.012 Mar 2025

Details

Category
Developer Tools
First seen
12 Mar 2025
Size
8 KB
Languages
en
Pricing
Free
Extension ID
jfncaoembjceedhindalbgkdkcamooki

Permissions and risk

Minimal riskimpact 0, likelihood 1
Permissions
activeTabscripting

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