extension ExtPose

HTTP Header Spy

CRX id


Description from extension meta

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

Image from store HTTP Header Spy
Description from store 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 ★ Filter headers to be shown ★ Highlight any string pattern in the header views

Latest reviews

  • (2021-11-27) Furkan Ali Gör: very good and works great
  • (2021-06-30) Lakshitha Wickramage: Nice Extension
  • (2020-01-22) Very useful extension! Has it a possibility to hide the "200" responses? I want to see only "400" and "500" response codes
  • (2019-12-10) Mordechai Meisels: Did you care reading their hilarious privacy policy? I'm not giving my data to them! https://www.donationbasedhosting.org/privacy-policy/index.html
  • (2019-04-13) Rais Patel: Totally useless
  • (2018-11-22) Jake Wang: Pretty useful extension. Thanks for developing it. But pls add a language switch in it. The Google-translated texts look pretty much weird :P
  • (2018-07-23) MiKa: HTTP/2 not supported
  • (2017-10-05) Prashant Singh: Asking too much for doing so less :P
  • (2017-09-27) Dev FMAG: Fantastic addon - very simple and helps a lot when debugging redirects
  • (2017-08-18) KuanCheng O: great!!!
  • (2017-04-26) Andrea Rizzello: You have to pay for this ...
  • (2017-02-16) Luke Rodgers: The recent changes with XHR and pro mode, everyone else has voiced their opinions adequately. I've taken to minimising this by clicking the eyeball when I'm not interested in debugging. Even when minimised the clickable hitbox for this extends far out to the left of the eyeball! I would have expected this hitbox to be locked in to the actual eyeball. The micro version in this is not micro enough also. I do not need "filter", "xhr" or "frame". You should be able to filter out what buttons are available in order to make this more micro again.
  • (2017-02-08) Sebastian Ronnefjord: It was a great tool for displaying a specific header in a small non intrusive way. However after the recent update the developer has put a time limit on the display, with an annoying "buy"-message instead. The application has, other than the new purchase demand, little to no change at all. Not the way to go about keeping users. Looking for ways to drop a few versions or uninstall completely. I am sad to see it go.
  • (2017-02-07) Hannes Hofstätter: Leider seit dem letzten Update nur mehr begrenzt brauchbar. Im Micromode verschwinden die Infos nicht mehr nach einer bestimmten Zeit und verhindert klicken von Buttons in der Ecke.
  • (2017-02-07) Andreas Andersson: I liked this extension but the recent pro update made it to annoying to use. Have to find something else now
  • (2017-02-06) Stefan Stubbe: I liked this extension very much, but the recent introduced notification "Get the PRO version..." on every display is very annoying. Looking for alternatives or ways to disable this..
  • (2017-02-06) Ian Blizzard: This has been an extremely useful tool in my toolkit for quite a long time but it has recently switched to an outrageously expensive subscription based extension. A modest $1 or $2 one time payment and I would have been fine with paying, but $50 lifetime, $10/year, or $1/month is just FAR too much to ask.
  • (2017-01-02) Bayu Permadi Sasmita: Very great extensions for Google Chrome...
  • (2016-12-05) Judas: Design needs to be improved...
  • (2016-08-14) percy507: Awesome.
  • (2015-08-13) Orochimaru Sannin: Not enough information, i can't find where the data from POST request and response for it.
  • (2015-05-11) Khang Kha: ok
  • (2014-09-16) Uri Argaman: Simple and working good. The micro version is exactly what I was looking for.
  • (2014-08-28) ketan mujumdar: I really liked it, I would have given 5 stars but it the micro version do not work which I really need it else it just too annoying for normal browsing and if you are not debugging
  • (2014-04-09) ttos ttos: Good start. It's missing a simple mechanism to switch on/off w/o having visit extensions configuration.
  • (2014-03-31) Bendik Brenne: Works like a charm! Exactly what I was looking for. The only thing I've been missing is the possibility to have the same features available for XHR requests aswell.
  • (2013-10-31) 张天泽: very good !!!

Latest issues

  • (2018-06-01, v:2.0.44) Ruikai Wang: I have made donation , how can I enable server IP and response time ?
    I have made donation , how can I enable server IP and response time ?
  • (2018-05-01, v:2.0.44) Demian Glensor: kien me espia_
    como se kien me esta espiando
  • (2018-04-17, v:2.0.44) Nishtha Sawhney: Not able to add pulgin to chrome
    Hi team, I am not able to install plugin to chrome ..it says access denied. could you please help
  • (2017-12-07, v:2.0.44) Rob Fritz: Export
    Would be nice to be able to export to a formatted text file
  • (2017-11-29, v:2.0.44) Александр Иванов: Монетизация вашего браузерного расширения с нами будет в разы эффективнее
    Здравствуйте, меня зовут Andrew Scarzesse. Хочу предложить вам варианты постоянной монетизации траффика, для этого у нас имеються все необходимые возможности, а именно: а) грамотный ротационный аппарат; b) полноценный пул рекламодателей по всем странам СНГ (онлайн кинотеатры, онлайн игры, опционы, форексы, интернет магазины, слоты, бэтинги, приложения от прямых рекламодателей по типу "Mail.ru", etc...); c) полное отсутствие вредоносных офферов в ротации (малвары, фривары, плагины, смс-подписки, ботнеты, техсап, адалта, etc...) d) стабильные еженедельные выплаты на - "WebMoney","ePayments","Wire"; Мы не посредники и по этому готовы платить вам высокие комисионные на рекламных форматах - "Click-under","Over-roll","подмена поисковой выгрузки","подмена рекламного ролика на YouTube и других медиа платформах". Пожалуйста свяжитесь со мной в максимально краткие сроки для обсуждения взаимовыгодных партнёрских условий и старта долгого, а главное продуктивного сотрудничества. КОНТАКТЫ: Skype: Jeronimo.Scarzesse Mail to: [email protected] Telegram: @JeronimoScarzesse
  • (2017-09-27, v:2.0.44) Dev FMAG: Highlight on chain of redirects
    It would be great if the popup would flash red or really obviously if it detects multiple redirects
  • (2017-04-10, v:2.0.44) Cocoa YT: INVALID_RESPONSE_ERROR for Enable extra options
    I cannot buy anythings ;-;
  • (2017-03-15, v:2.0.44) Alex: Add autofocus to filter input
    Michiel, when extension popup is closed focus is returned to page. So there is no stealing.
  • (2017-03-02, v:2.0.43) Issues with shownResponseHeaders
    It seems like the extension code contains a bug registering fields to be saved in the options dialog. The addId and newId for shownResponseHeaders seem to be incorrect which breaks adding headers to micro mode.
  • (2017-03-01, v:2.0.43) Alex: Add autofocus to filter input
    It would be more convenient


10,000 history
3.8 (60 votes)
Last update / version
2018-09-26 / 2.0.49
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