HTTP Header Spy enables you to inspect request- response headers and cookies right after page load with no extra clicks.
Manifest V2
- Users:
- 10,000+
- Rating:
- 3.79 (62)
- Version:
- 2.0.49 (Last updated: 2018-09-26)
- Creation date:
- 2018-09-26
- 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:
- 19 hours ago
Ranking
Other platforms

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
by
Elvin Aslanov, 2022-02-09
very good and works great
by
Furkan Ali, 2021-11-27
Nice Extension
by
Lakshitha Wickramage, 2021-06-30
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 **** ********* *** **** **** *******
Upgrade to see full risk analysis details
Instantly check and monitor your browser extensions' risks and permissions with
Extension Guard.
Promo images
Similar extensions
Here are some Chrome extensions that are similar to HTTP Header Spy: