HTTP Header Spy

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

Download

Install ↔ Compare

HTTP Header Spy is a powerful Chrome extension designed to let you inspect HTTP request and response headers, cookies, and response times immediately after page load without opening developer tools. It displays headers directly on the page with an easy-to-use interface featuring colorful status icons, server IP details, and full redirect path tracking.

Key features include auto-hiding information panels, support for XHR and sub-frame requests, form data inspection, micro mode for focused header views, and customizable positioning on any corner of the browser window. Users can filter headers, highlight specific string patterns, and choose between light and dark color schemes for an optimized and user-friendly experience. HTTP Header Spy streamlines web debugging and network analysis directly within your browsing workflow.

Developer Tools Productivity Web3

By:: https://www.donationbasedhosting.org
Users:: 10,000+
Rating:: 3.79
(62)
Version:: 2.0.49 (Last updated: 2018-09-26)
Creation date:: 2018-09-26
Risk:: High risk impact Moderate risk likelihood
Permissions:: http://*/*
https://*/*
tabs
activeTab
storage
webRequest
Size:: 152.58K
Email:: mi*****@michielroos.com
URLs:: Website
Full description:: See detailed description
Source:: Chrome Web Store
Updated:: 14 hours ago

Ranking

# 8,029 ▼ 7

Other rankings

#2803 in Developer Tools ▼ 1 #9 in header keyword 48 #101 in response keyword 13 ▼ 1

Other platforms

HTTP Header Spy (v2.0.49)

278 4.80

(5)

User reviews

Users find HTTP Header Spy to be a simple and effective tool for inspecting HTTP headers and debugging redirects, especially appreciating its micro mode. However, multiple users criticize recent updates that added frequent pro-version purchase prompts and costly subscription fees. The micro mode has usability issues, and the extension lacks support for HTTP/2 and XHR requests. Some also note design and translation shortcomings. Overall, while useful, recent monetization changes and usability regressions have led to mixed user sentiments.

Pros

Simple and effective for debugging HTTP headers.
Provides a useful micro mode that's non-intrusive.
Helps with inspecting redirects and HTTP requests.
The extension is generally appreciated as a good tool by users.
Works well and is easy to use.

Cons

Recent updates introduced frequent annoying 'Get the PRO version' notifications.
Pro version functions are behind a costly subscription model, leading to dissatisfaction.
Micro mode has issues such as extended visibility and interface problems.
Does not support HTTP/2 and lacks features for XHR requests.
Design and language translation quality need improvement.

Recent reviews

micro mode is awesome

Elvin Aslanov, 2022-02-09

very good and works great

Furkan Ali, 2021-11-27

Nice Extension

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 impact analysis details

Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
Critical ****** ****** ** ******* ***** ***** *** ** **** ** ***** **** ******** ****** *** ******** ********** * ******* ********
High ****** *** ********* ** ******* *** ******* ******* ** ****** *** *** ******** ******
High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****

Risk likelihood

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

Risk likelihood analysis details

High This extension publisher URL may be invalid
High **** ********* ******* *** *** ** *******
High **** ********* *** *** **** ****** ********* ********** *** *** ** ****** ** *****
Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
Good **** ********* *** **** **** *******