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 - Inspect Headers & Cookies with Ease

"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.
Install from Chrome Web Store

Extension stats

Users: 10,000+
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:
Manifest version: 2
Permissions:
  • http://*/*
  • https://*/*
  • tabs
  • activeTab
  • storage
  • webRequest
Size: 152.58K
URLs: Website

Other platforms

HTTP Team VPN (v9.4)
3.90 (859) 135,972+
HTTP Header Spy (v2.0.49)
4.80 (5) 323
Not available on Edge
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Extension summary

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

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User reviews

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 Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
Pros
  • micro mode is awesome
  • very good and works great
  • pretty useful extension
  • fantastic addon - very simple and helps a lot when debugging redirects
  • great tool for displaying a specific header in a small non intrusive way
Cons
  • asking too much for doing so less
  • HTTP/2 not supported
  • recent updates have introduced annoyances like buy messages
  • limited usability after recent updates
  • Google-translated texts look weird
Most mentioned
  • micro mode
  • recent update issues
  • annoying buy messages
  • great utility for debugging
  • privacy concerns
User reviews
micro mode is awesome
by Elvin Aslanov, 2022-02-09

very good and works great
by Furkan Ali Gör, 2021-11-27

Nice Extension
by Lakshitha Wickramage, 2021-06-30
View all user reviews

Extension safety

Risk impact

HTTP Header Spy requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk likelihood

HTTP Header Spy is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this extension.

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Promo images

HTTP Header Spy small promo image
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