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HttpWatch

http://www.httpwatch.com/
HttpWatch is an HTTP viewer and debugger that integrates with IE and Firefox to provide seamless HTTP and HTTPS monitoring without leaving the browser window.

Fiddler (Freeware 웹 디버깅 툴-HttpWatch 종류)

 

Fiddler 참고

The Fiddler Web Debugger enables capture, measurement, replay, and modification of HTTP and HTTPS traffic from virtually any application, including all major browsers. A highly-customizable freeware platform, Fiddler is extensible using either Javascript or any .NET language.

google reference

http://www.techcrunch.com/2009/06/04/google-opens-up-internal-speed-tool-to-the-public/
like httpWatch but it's firebug based

google web performance best practice http://code.google.com/intl/ko-KR/speed/page-speed/docs/rules_intro.html

showslow

Tool that collects web performance data and shows it in aggregated form for better business understanding.
You can see working public version of the software at http://www.showslow.com/
project site - 프로젝트 사이트 http://code.google.com/p/showslow/

showslow = yslow + pagetest

example : http://www.showslow.com/ 에 나오는 URL을 들어가면 상세한 분석 정보가 나옴

YSlow

http://developer.yahoo.com/yslow/
YSlow analyzes web pages and suggests ways to improve their performance based on a set of rules for high performance web pages. YSlow is a Firefox add-on integrated with the Firebug web development tool. YSlow grades web page based on one of three predefined ruleset or a user-defined ruleset. It offers suggestions for improving the page's performance, summarizes the page's components, displays statistics about the page, and provides tools for performance analysis, including Smush.it™ and JSLint.

YSlow 는 yahoo에서 내부적으로 만들어 공개한 툴로 보이며 웹에서 최대의 성능을 내기 위한 규칙을 점검할 수 있는 듯하다.
rules for high performance web pages http://developer.yahoo.com/performance/rules.html

YSlow 를 이용하기 위해서는 firebug를 먼저 설치해야 한다. http://getfirebug.com/

pagetest

http://pagetest.wiki.sourceforge.net/
Pagetest is an open source tool for measuring and analyzing web page performance right from your web browser. AOL developed Pagetest internally to automate load time measurement of its many websites, and it has evolved into a powerful tool for web developers and software engineers in testing their web pages and getting instant feedback. We decided to release it to the grander web development community to further help evolve it into an even more useful - and free - web performance tool.

example : http://www.webpagetest.org/

firebug

http://getfirebug.com/
Firebug integrates with Firefox to put a wealth of web development tools at your fingertips while you browse. You can edit, debug, and monitor CSS, HTML, and JavaScript live in any web page.

참고자료

YSlow 개발했고 현재 구글에서 일하고 있는 개발자가 velocity2009 에서 발표혔던 자료. 웹사이트에서 frontend 의 성능개선에 대한 내용을 담고 있으며 Firebug, YSlow, HttpWatch, Hammerhead, Cuzillion, and Smush.it. 등의 툴에 대한 비교를 하고 있음.
Website Performance Analysis

위 문서에서 소개하고 있는 Performance Tools (ppt 파일의 76페이지)
HttpWatch http://www.httpwatch.com/
Firebug http://getfirebug.com/
Page Speed http://code.google.com/speed/page-speed/
YSlow http://developer.yahoo.com/yslow/
Smush.it http://smush.it/
CSS Sprite Generator http://spritegen.website-performance.org/
SpriteMe http://spriteme.org/ (in progress)
Hammerhead http://stevesouders.com/hammerhead/
Cuzillion http://cuzillion.com/

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