HTTP Header Spy

HTTP Header Spy

HTTP Header Spy enables you to inspect request- response headers and cookies right after page load with no extra clicks.

HTTP Header Spy promo image
What is HTTP Header Spy?

"HTTP Header Spy" is a comprehensive Chrome extension designed to simplify the process of inspecting HTTP headers, cookies, and response times. It automatically shows this information right after a webpage loads, eliminating the need to manually open the page inspector tool. It also offers a raft of advanced features including auto-hide panels, tracking IP, viewing XHR and sub-frame requests, monitoring of redirect paths, inspection of form data and get parameters, and header filter options, among others. It also includes customization features such as position controls, color themes, and highlight options.

Rating: 3.79 (62)
Version: 2.0.49 (Last updated: 2018-09-26)
Creation date: 2018-09-26
Risk impact: High risk impact
Risk likelihood: Low risk likelihood
Manifest version: 2
  • http://*/*
  • https://*/*
  • tabs
  • activeTab
  • storage
  • webRequest
Size: 152.58K
Email: Click to see
Stats date:

Other platforms

Not available on Firefox
Not available on Edge
Analyze keywords

Inspect HTTP headers and response times without opening the page inspector tool. View headers right in the page you are looking at.

★ Auto-hide information panels after specified time ★ Response times ★ Server IP ★ XHR and sub-frame requests ★ Headers also available in the browser action popup ★ Follow the full redirect path ★ Show HSTS requests ★ Colorful status indication icons ★ Inspect Form Data, Get parameters and Cookies ★ Micro mode shows just the chosen response headers ★ Position in one of the four corners of the window ★ Easy single-click highlighting of the headers ★ Choose between a light and a dark color-scheme

See more
User reviews
User reviews summary
These summaries are automatically generated weekly using AI based on recent user reviews. Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
  • Micro mode feature
  • Useful for debugging
  • Simple to use
  • Intrusive 'Get the PRO version' notification
  • Expensive subscription
  • Poor translation
Most mentioned
  • Micro mode
  • Pro version updates
  • Debugging functionality
View all user reviews
Risk impact

HTTP Header Spy is risky to use as it requires a number of sensitive permissions that can potentially harm your browser and steal your data. Exercise caution when installing this extension. Review carefully before installing. We recommend that you only install HTTP Header Spy if you trust the publisher.

Risk likelihood

HTTP Header Spy has earned a fairly good reputation and likely can be trusted.

Upgrade to see risk analysis details
Promo images
HTTP Header Spy small promo image
Small promo image
Similar extensions

Here are some Chrome extensions that are similar to HTTP Header Spy: